<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang=""> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>django.core.urlresolvers — Django 1.8.19 documentation</title> <link rel="stylesheet" href="../../../_static/default.css" type="text/css" /> <link rel="stylesheet" href="../../../_static/pygments.css" type="text/css" /> <script type="text/javascript"> var DOCUMENTATION_OPTIONS = { URL_ROOT: '../../../', VERSION: '1.8.19', COLLAPSE_INDEX: false, FILE_SUFFIX: '.html', HAS_SOURCE: true }; </script> <script type="text/javascript" src="../../../_static/jquery.js"></script> <script type="text/javascript" src="../../../_static/underscore.js"></script> <script type="text/javascript" src="../../../_static/doctools.js"></script> <link rel="index" title="Index" href="../../../genindex.html" /> <link rel="search" title="Search" href="../../../search.html" /> <link rel="top" title="Django 1.8.19 documentation" href="../../../contents.html" /> <link rel="up" title="django" href="../../django.html" /> <script type="text/javascript" src="../../../templatebuiltins.js"></script> <script type="text/javascript"> (function($) { if (!django_template_builtins) { // templatebuiltins.js missing, do nothing. return; } $(document).ready(function() { // Hyperlink Django template tags and filters var base = "../../../ref/templates/builtins.html"; if (base == "#") { // Special case for builtins.html itself base = ""; } // Tags are keywords, class '.k' $("div.highlight\\-html\\+django span.k").each(function(i, elem) { var tagname = $(elem).text(); if ($.inArray(tagname, django_template_builtins.ttags) != -1) { var fragment = tagname.replace(/_/, '-'); $(elem).html("<a href='" + base + "#" + fragment + "'>" + tagname + "</a>"); } }); // Filters are functions, class '.nf' $("div.highlight\\-html\\+django span.nf").each(function(i, elem) { var filtername = $(elem).text(); if ($.inArray(filtername, django_template_builtins.tfilters) != -1) { var fragment = filtername.replace(/_/, '-'); $(elem).html("<a href='" + base + "#" + fragment + "'>" + filtername + "</a>"); } }); }); })(jQuery); </script> </head> <body role="document"> <div class="document"> <div id="custom-doc" class="yui-t6"> <div id="hd"> <h1><a href="../../../index.html">Django 1.8.19 documentation</a></h1> <div id="global-nav"> <a title="Home page" href="../../../index.html">Home</a> | <a title="Table of contents" href="../../../contents.html">Table of contents</a> | <a title="Global index" href="../../../genindex.html">Index</a> | <a title="Module index" href="../../../py-modindex.html">Modules</a> </div> <div class="nav"> <a href="../../index.html" title="Module code" accesskey="U">up</a></div> </div> <div id="bd"> <div id="yui-main"> <div class="yui-b"> <div class="yui-g" id="_modules-django-core-urlresolvers"> <h1>Source code for django.core.urlresolvers</h1><div class="highlight"><pre> <span></span><span class="sd">"""</span> <span class="sd">This module converts requested URLs to callback view functions.</span> <span class="sd">RegexURLResolver is the main class here. Its resolve() method takes a URL (as</span> <span class="sd">a string) and returns a ResolverMatch object which provides access to all</span> <span class="sd">attributes of the resolved URL match.</span> <span class="sd">"""</span> <span class="kn">from</span> <span class="nn">__future__</span> <span class="k">import</span> <span class="n">unicode_literals</span> <span class="kn">import</span> <span class="nn">functools</span> <span class="kn">import</span> <span class="nn">re</span> <span class="kn">import</span> <span class="nn">warnings</span> <span class="kn">from</span> <span class="nn">importlib</span> <span class="k">import</span> <span class="n">import_module</span> <span class="kn">from</span> <span class="nn">threading</span> <span class="k">import</span> <span class="n">local</span> <span class="kn">from</span> <span class="nn">django.core.exceptions</span> <span class="k">import</span> <span class="n">ImproperlyConfigured</span><span class="p">,</span> <span class="n">ViewDoesNotExist</span> <span class="kn">from</span> <span class="nn">django.http</span> <span class="k">import</span> <span class="n">Http404</span> <span class="kn">from</span> <span class="nn">django.utils</span> <span class="k">import</span> <span class="n">lru_cache</span><span class="p">,</span> <span class="n">six</span> <span class="kn">from</span> <span class="nn">django.utils.datastructures</span> <span class="k">import</span> <span class="n">MultiValueDict</span> <span class="kn">from</span> <span class="nn">django.utils.deprecation</span> <span class="k">import</span> <span class="n">RemovedInDjango110Warning</span> <span class="kn">from</span> <span class="nn">django.utils.encoding</span> <span class="k">import</span> <span class="n">force_str</span><span class="p">,</span> <span class="n">force_text</span><span class="p">,</span> <span class="n">iri_to_uri</span> <span class="kn">from</span> <span class="nn">django.utils.functional</span> <span class="k">import</span> <span class="n">lazy</span> <span class="kn">from</span> <span class="nn">django.utils.http</span> <span class="k">import</span> <span class="n">RFC3986_SUBDELIMS</span><span class="p">,</span> <span class="n">urlquote</span> <span class="kn">from</span> <span class="nn">django.utils.module_loading</span> <span class="k">import</span> <span class="n">module_has_submodule</span> <span class="kn">from</span> <span class="nn">django.utils.regex_helper</span> <span class="k">import</span> <span class="n">normalize</span> <span class="kn">from</span> <span class="nn">django.utils.translation</span> <span class="k">import</span> <span class="n">get_language</span> <span class="c1"># SCRIPT_NAME prefixes for each thread are stored here. If there's no entry for</span> <span class="c1"># the current thread (which is the only one we ever access), it is assumed to</span> <span class="c1"># be empty.</span> <span class="n">_prefixes</span> <span class="o">=</span> <span class="n">local</span><span class="p">()</span> <span class="c1"># Overridden URLconfs for each thread are stored here.</span> <span class="n">_urlconfs</span> <span class="o">=</span> <span class="n">local</span><span class="p">()</span> <div class="viewcode-block" id="ResolverMatch"><a class="viewcode-back" href="../../../ref/urlresolvers.html#django.core.urlresolvers.ResolverMatch">[docs]</a><span class="k">class</span> <span class="nc">ResolverMatch</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">func</span><span class="p">,</span> <span class="n">args</span><span class="p">,</span> <span class="n">kwargs</span><span class="p">,</span> <span class="n">url_name</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">app_name</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">namespaces</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span> <span class="bp">self</span><span class="o">.</span><span class="n">func</span> <span class="o">=</span> <span class="n">func</span> <span class="bp">self</span><span class="o">.</span><span class="n">args</span> <span class="o">=</span> <span class="n">args</span> <span class="bp">self</span><span class="o">.</span><span class="n">kwargs</span> <span class="o">=</span> <span class="n">kwargs</span> <span class="bp">self</span><span class="o">.</span><span class="n">url_name</span> <span class="o">=</span> <span class="n">url_name</span> <span class="bp">self</span><span class="o">.</span><span class="n">app_name</span> <span class="o">=</span> <span class="n">app_name</span> <span class="k">if</span> <span class="n">namespaces</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">namespaces</span> <span class="o">=</span> <span class="p">[</span><span class="n">x</span> <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">namespaces</span> <span class="k">if</span> <span class="n">x</span><span class="p">]</span> <span class="k">else</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">namespaces</span> <span class="o">=</span> <span class="p">[]</span> <span class="bp">self</span><span class="o">.</span><span class="n">namespace</span> <span class="o">=</span> <span class="s1">':'</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">namespaces</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">func</span><span class="p">,</span> <span class="s1">'__name__'</span><span class="p">):</span> <span class="c1"># A class-based view</span> <span class="bp">self</span><span class="o">.</span><span class="n">_func_path</span> <span class="o">=</span> <span class="s1">'.'</span><span class="o">.</span><span class="n">join</span><span class="p">([</span><span class="n">func</span><span class="o">.</span><span class="n">__class__</span><span class="o">.</span><span class="n">__module__</span><span class="p">,</span> <span class="n">func</span><span class="o">.</span><span class="n">__class__</span><span class="o">.</span><span class="n">__name__</span><span class="p">])</span> <span class="k">else</span><span class="p">:</span> <span class="c1"># A function-based view</span> <span class="bp">self</span><span class="o">.</span><span class="n">_func_path</span> <span class="o">=</span> <span class="s1">'.'</span><span class="o">.</span><span class="n">join</span><span class="p">([</span><span class="n">func</span><span class="o">.</span><span class="n">__module__</span><span class="p">,</span> <span class="n">func</span><span class="o">.</span><span class="n">__name__</span><span class="p">])</span> <span class="n">view_path</span> <span class="o">=</span> <span class="n">url_name</span> <span class="ow">or</span> <span class="bp">self</span><span class="o">.</span><span class="n">_func_path</span> <span class="bp">self</span><span class="o">.</span><span class="n">view_name</span> <span class="o">=</span> <span class="s1">':'</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">namespaces</span> <span class="o">+</span> <span class="p">[</span><span class="n">view_path</span><span class="p">])</span> <span class="k">def</span> <span class="nf">__getitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">index</span><span class="p">):</span> <span class="k">return</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">func</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">args</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">kwargs</span><span class="p">)[</span><span class="n">index</span><span class="p">]</span> <span class="k">def</span> <span class="nf">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> <span class="k">return</span> <span class="s2">"ResolverMatch(func=</span><span class="si">%s</span><span class="s2">, args=</span><span class="si">%s</span><span class="s2">, kwargs=</span><span class="si">%s</span><span class="s2">, url_name=</span><span class="si">%s</span><span class="s2">, app_name=</span><span class="si">%s</span><span class="s2">, namespaces=</span><span class="si">%s</span><span class="s2">)"</span> <span class="o">%</span> <span class="p">(</span> <span class="bp">self</span><span class="o">.</span><span class="n">_func_path</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">args</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">kwargs</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">url_name</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">app_name</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">namespaces</span><span class="p">)</span></div> <div class="viewcode-block" id="Resolver404"><a class="viewcode-back" href="../../../ref/exceptions.html#django.core.urlresolvers.Resolver404">[docs]</a><span class="k">class</span> <span class="nc">Resolver404</span><span class="p">(</span><span class="n">Http404</span><span class="p">):</span> <span class="k">pass</span></div> <div class="viewcode-block" id="NoReverseMatch"><a class="viewcode-back" href="../../../ref/exceptions.html#django.core.urlresolvers.NoReverseMatch">[docs]</a><span class="k">class</span> <span class="nc">NoReverseMatch</span><span class="p">(</span><span class="ne">Exception</span><span class="p">):</span> <span class="k">pass</span></div> <span class="nd">@lru_cache</span><span class="o">.</span><span class="n">lru_cache</span><span class="p">(</span><span class="n">maxsize</span><span class="o">=</span><span class="kc">None</span><span class="p">)</span> <span class="k">def</span> <span class="nf">get_callable</span><span class="p">(</span><span class="n">lookup_view</span><span class="p">,</span> <span class="n">can_fail</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> Return a callable corresponding to lookup_view. This function is used</span> <span class="sd"> by both resolve() and reverse(), so can_fail allows the caller to choose</span> <span class="sd"> between returning the input as is and raising an exception when the input</span> <span class="sd"> string can't be interpreted as an import path.</span> <span class="sd"> If lookup_view is already a callable, return it.</span> <span class="sd"> If lookup_view is a string import path that can be resolved to a callable,</span> <span class="sd"> import that callable and return it.</span> <span class="sd"> If lookup_view is some other kind of string and can_fail is True, the string</span> <span class="sd"> is returned as is. If can_fail is False, an exception is raised (either</span> <span class="sd"> ImportError or ViewDoesNotExist).</span> <span class="sd"> """</span> <span class="k">if</span> <span class="n">callable</span><span class="p">(</span><span class="n">lookup_view</span><span class="p">):</span> <span class="k">return</span> <span class="n">lookup_view</span> <span class="n">mod_name</span><span class="p">,</span> <span class="n">func_name</span> <span class="o">=</span> <span class="n">get_mod_func</span><span class="p">(</span><span class="n">lookup_view</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="n">func_name</span><span class="p">:</span> <span class="c1"># No '.' in lookup_view</span> <span class="k">if</span> <span class="n">can_fail</span><span class="p">:</span> <span class="k">return</span> <span class="n">lookup_view</span> <span class="k">else</span><span class="p">:</span> <span class="k">raise</span> <span class="ne">ImportError</span><span class="p">(</span> <span class="s2">"Could not import '</span><span class="si">%s</span><span class="s2">'. The path must be fully qualified."</span> <span class="o">%</span> <span class="n">lookup_view</span><span class="p">)</span> <span class="k">try</span><span class="p">:</span> <span class="n">mod</span> <span class="o">=</span> <span class="n">import_module</span><span class="p">(</span><span class="n">mod_name</span><span class="p">)</span> <span class="k">except</span> <span class="ne">ImportError</span><span class="p">:</span> <span class="k">if</span> <span class="n">can_fail</span><span class="p">:</span> <span class="k">return</span> <span class="n">lookup_view</span> <span class="k">else</span><span class="p">:</span> <span class="n">parentmod</span><span class="p">,</span> <span class="n">submod</span> <span class="o">=</span> <span class="n">get_mod_func</span><span class="p">(</span><span class="n">mod_name</span><span class="p">)</span> <span class="k">if</span> <span class="n">submod</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">module_has_submodule</span><span class="p">(</span><span class="n">import_module</span><span class="p">(</span><span class="n">parentmod</span><span class="p">),</span> <span class="n">submod</span><span class="p">):</span> <span class="k">raise</span> <span class="n">ViewDoesNotExist</span><span class="p">(</span> <span class="s2">"Could not import '</span><span class="si">%s</span><span class="s2">'. Parent module </span><span class="si">%s</span><span class="s2"> does not exist."</span> <span class="o">%</span> <span class="p">(</span><span class="n">lookup_view</span><span class="p">,</span> <span class="n">mod_name</span><span class="p">))</span> <span class="k">else</span><span class="p">:</span> <span class="k">raise</span> <span class="k">else</span><span class="p">:</span> <span class="k">try</span><span class="p">:</span> <span class="n">view_func</span> <span class="o">=</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">mod</span><span class="p">,</span> <span class="n">func_name</span><span class="p">)</span> <span class="k">except</span> <span class="ne">AttributeError</span><span class="p">:</span> <span class="k">if</span> <span class="n">can_fail</span><span class="p">:</span> <span class="k">return</span> <span class="n">lookup_view</span> <span class="k">else</span><span class="p">:</span> <span class="k">raise</span> <span class="n">ViewDoesNotExist</span><span class="p">(</span> <span class="s2">"Could not import '</span><span class="si">%s</span><span class="s2">'. View does not exist in module </span><span class="si">%s</span><span class="s2">."</span> <span class="o">%</span> <span class="p">(</span><span class="n">lookup_view</span><span class="p">,</span> <span class="n">mod_name</span><span class="p">))</span> <span class="k">else</span><span class="p">:</span> <span class="k">if</span> <span class="ow">not</span> <span class="n">callable</span><span class="p">(</span><span class="n">view_func</span><span class="p">):</span> <span class="c1"># For backwards compatibility this is raised regardless of can_fail</span> <span class="k">raise</span> <span class="n">ViewDoesNotExist</span><span class="p">(</span> <span class="s2">"Could not import '</span><span class="si">%s</span><span class="s2">.</span><span class="si">%s</span><span class="s2">'. View is not callable."</span> <span class="o">%</span> <span class="p">(</span><span class="n">mod_name</span><span class="p">,</span> <span class="n">func_name</span><span class="p">))</span> <span class="k">return</span> <span class="n">view_func</span> <span class="nd">@lru_cache</span><span class="o">.</span><span class="n">lru_cache</span><span class="p">(</span><span class="n">maxsize</span><span class="o">=</span><span class="kc">None</span><span class="p">)</span> <span class="k">def</span> <span class="nf">get_resolver</span><span class="p">(</span><span class="n">urlconf</span><span class="p">):</span> <span class="k">if</span> <span class="n">urlconf</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> <span class="kn">from</span> <span class="nn">django.conf</span> <span class="k">import</span> <span class="n">settings</span> <span class="n">urlconf</span> <span class="o">=</span> <span class="n">settings</span><span class="o">.</span><span class="n">ROOT_URLCONF</span> <span class="k">return</span> <span class="n">RegexURLResolver</span><span class="p">(</span><span class="s1">r'^/'</span><span class="p">,</span> <span class="n">urlconf</span><span class="p">)</span> <span class="nd">@lru_cache</span><span class="o">.</span><span class="n">lru_cache</span><span class="p">(</span><span class="n">maxsize</span><span class="o">=</span><span class="kc">None</span><span class="p">)</span> <span class="k">def</span> <span class="nf">get_ns_resolver</span><span class="p">(</span><span class="n">ns_pattern</span><span class="p">,</span> <span class="n">resolver</span><span class="p">):</span> <span class="c1"># Build a namespaced resolver for the given parent urlconf pattern.</span> <span class="c1"># This makes it possible to have captured parameters in the parent</span> <span class="c1"># urlconf pattern.</span> <span class="n">ns_resolver</span> <span class="o">=</span> <span class="n">RegexURLResolver</span><span class="p">(</span><span class="n">ns_pattern</span><span class="p">,</span> <span class="n">resolver</span><span class="o">.</span><span class="n">url_patterns</span><span class="p">)</span> <span class="k">return</span> <span class="n">RegexURLResolver</span><span class="p">(</span><span class="s1">r'^/'</span><span class="p">,</span> <span class="p">[</span><span class="n">ns_resolver</span><span class="p">])</span> <span class="k">def</span> <span class="nf">get_mod_func</span><span class="p">(</span><span class="n">callback</span><span class="p">):</span> <span class="c1"># Converts 'django.views.news.stories.story_detail' to</span> <span class="c1"># ['django.views.news.stories', 'story_detail']</span> <span class="k">try</span><span class="p">:</span> <span class="n">dot</span> <span class="o">=</span> <span class="n">callback</span><span class="o">.</span><span class="n">rindex</span><span class="p">(</span><span class="s1">'.'</span><span class="p">)</span> <span class="k">except</span> <span class="ne">ValueError</span><span class="p">:</span> <span class="k">return</span> <span class="n">callback</span><span class="p">,</span> <span class="s1">''</span> <span class="k">return</span> <span class="n">callback</span><span class="p">[:</span><span class="n">dot</span><span class="p">],</span> <span class="n">callback</span><span class="p">[</span><span class="n">dot</span> <span class="o">+</span> <span class="mi">1</span><span class="p">:]</span> <span class="k">class</span> <span class="nc">LocaleRegexProvider</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> A mixin to provide a default regex property which can vary by active</span> <span class="sd"> language.</span> <span class="sd"> """</span> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">regex</span><span class="p">):</span> <span class="c1"># regex is either a string representing a regular expression, or a</span> <span class="c1"># translatable string (using ugettext_lazy) representing a regular</span> <span class="c1"># expression.</span> <span class="bp">self</span><span class="o">.</span><span class="n">_regex</span> <span class="o">=</span> <span class="n">regex</span> <span class="bp">self</span><span class="o">.</span><span class="n">_regex_dict</span> <span class="o">=</span> <span class="p">{}</span> <span class="nd">@property</span> <span class="k">def</span> <span class="nf">regex</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> Returns a compiled regular expression, depending upon the activated</span> <span class="sd"> language-code.</span> <span class="sd"> """</span> <span class="n">language_code</span> <span class="o">=</span> <span class="n">get_language</span><span class="p">()</span> <span class="k">if</span> <span class="n">language_code</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_regex_dict</span><span class="p">:</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_regex</span><span class="p">,</span> <span class="n">six</span><span class="o">.</span><span class="n">string_types</span><span class="p">):</span> <span class="n">regex</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_regex</span> <span class="k">else</span><span class="p">:</span> <span class="n">regex</span> <span class="o">=</span> <span class="n">force_text</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_regex</span><span class="p">)</span> <span class="k">try</span><span class="p">:</span> <span class="n">compiled_regex</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">compile</span><span class="p">(</span><span class="n">regex</span><span class="p">,</span> <span class="n">re</span><span class="o">.</span><span class="n">UNICODE</span><span class="p">)</span> <span class="k">except</span> <span class="n">re</span><span class="o">.</span><span class="n">error</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span> <span class="k">raise</span> <span class="n">ImproperlyConfigured</span><span class="p">(</span> <span class="s1">'"</span><span class="si">%s</span><span class="s1">" is not a valid regular expression: </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="p">(</span><span class="n">regex</span><span class="p">,</span> <span class="n">six</span><span class="o">.</span><span class="n">text_type</span><span class="p">(</span><span class="n">e</span><span class="p">)))</span> <span class="bp">self</span><span class="o">.</span><span class="n">_regex_dict</span><span class="p">[</span><span class="n">language_code</span><span class="p">]</span> <span class="o">=</span> <span class="n">compiled_regex</span> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_regex_dict</span><span class="p">[</span><span class="n">language_code</span><span class="p">]</span> <span class="k">class</span> <span class="nc">RegexURLPattern</span><span class="p">(</span><span class="n">LocaleRegexProvider</span><span class="p">):</span> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">regex</span><span class="p">,</span> <span class="n">callback</span><span class="p">,</span> <span class="n">default_args</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">name</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span> <span class="n">LocaleRegexProvider</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">regex</span><span class="p">)</span> <span class="c1"># callback is either a string like 'foo.views.news.stories.story_detail'</span> <span class="c1"># which represents the path to a module and a view function name, or a</span> <span class="c1"># callable object (view).</span> <span class="k">if</span> <span class="n">callable</span><span class="p">(</span><span class="n">callback</span><span class="p">):</span> <span class="bp">self</span><span class="o">.</span><span class="n">_callback</span> <span class="o">=</span> <span class="n">callback</span> <span class="k">else</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">_callback</span> <span class="o">=</span> <span class="kc">None</span> <span class="bp">self</span><span class="o">.</span><span class="n">_callback_str</span> <span class="o">=</span> <span class="n">callback</span> <span class="bp">self</span><span class="o">.</span><span class="n">default_args</span> <span class="o">=</span> <span class="n">default_args</span> <span class="ow">or</span> <span class="p">{}</span> <span class="bp">self</span><span class="o">.</span><span class="n">name</span> <span class="o">=</span> <span class="n">name</span> <span class="k">def</span> <span class="nf">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> <span class="k">return</span> <span class="n">force_str</span><span class="p">(</span><span class="s1">'<</span><span class="si">%s</span><span class="s1"> </span><span class="si">%s</span><span class="s1"> </span><span class="si">%s</span><span class="s1">>'</span> <span class="o">%</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">__class__</span><span class="o">.</span><span class="n">__name__</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">regex</span><span class="o">.</span><span class="n">pattern</span><span class="p">))</span> <span class="k">def</span> <span class="nf">add_prefix</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">prefix</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> Adds the prefix string to a string-based callback.</span> <span class="sd"> """</span> <span class="k">if</span> <span class="ow">not</span> <span class="n">prefix</span> <span class="ow">or</span> <span class="ow">not</span> <span class="nb">hasattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="s1">'_callback_str'</span><span class="p">):</span> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_callback_str</span> <span class="o">=</span> <span class="n">prefix</span> <span class="o">+</span> <span class="s1">'.'</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">_callback_str</span> <span class="k">def</span> <span class="nf">resolve</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">path</span><span class="p">):</span> <span class="n">match</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">regex</span><span class="o">.</span><span class="n">search</span><span class="p">(</span><span class="n">path</span><span class="p">)</span> <span class="k">if</span> <span class="n">match</span><span class="p">:</span> <span class="c1"># If there are any named groups, use those as kwargs, ignoring</span> <span class="c1"># non-named groups. Otherwise, pass all non-named arguments as</span> <span class="c1"># positional arguments.</span> <span class="n">kwargs</span> <span class="o">=</span> <span class="n">match</span><span class="o">.</span><span class="n">groupdict</span><span class="p">()</span> <span class="k">if</span> <span class="n">kwargs</span><span class="p">:</span> <span class="n">args</span> <span class="o">=</span> <span class="p">()</span> <span class="k">else</span><span class="p">:</span> <span class="n">args</span> <span class="o">=</span> <span class="n">match</span><span class="o">.</span><span class="n">groups</span><span class="p">()</span> <span class="c1"># In both cases, pass any extra_kwargs as **kwargs.</span> <span class="n">kwargs</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">default_args</span><span class="p">)</span> <span class="k">return</span> <span class="n">ResolverMatch</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">callback</span><span class="p">,</span> <span class="n">args</span><span class="p">,</span> <span class="n">kwargs</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> <span class="nd">@property</span> <span class="k">def</span> <span class="nf">callback</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_callback</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_callback</span> <span class="bp">self</span><span class="o">.</span><span class="n">_callback</span> <span class="o">=</span> <span class="n">get_callable</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_callback_str</span><span class="p">)</span> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_callback</span> <span class="k">class</span> <span class="nc">RegexURLResolver</span><span class="p">(</span><span class="n">LocaleRegexProvider</span><span class="p">):</span> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">regex</span><span class="p">,</span> <span class="n">urlconf_name</span><span class="p">,</span> <span class="n">default_kwargs</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">app_name</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">namespace</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span> <span class="n">LocaleRegexProvider</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">regex</span><span class="p">)</span> <span class="c1"># urlconf_name is a string representing the module containing URLconfs.</span> <span class="bp">self</span><span class="o">.</span><span class="n">urlconf_name</span> <span class="o">=</span> <span class="n">urlconf_name</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">urlconf_name</span><span class="p">,</span> <span class="n">six</span><span class="o">.</span><span class="n">string_types</span><span class="p">):</span> <span class="bp">self</span><span class="o">.</span><span class="n">_urlconf_module</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">urlconf_name</span> <span class="bp">self</span><span class="o">.</span><span class="n">callback</span> <span class="o">=</span> <span class="kc">None</span> <span class="bp">self</span><span class="o">.</span><span class="n">default_kwargs</span> <span class="o">=</span> <span class="n">default_kwargs</span> <span class="ow">or</span> <span class="p">{}</span> <span class="bp">self</span><span class="o">.</span><span class="n">namespace</span> <span class="o">=</span> <span class="n">namespace</span> <span class="bp">self</span><span class="o">.</span><span class="n">app_name</span> <span class="o">=</span> <span class="n">app_name</span> <span class="bp">self</span><span class="o">.</span><span class="n">_reverse_dict</span> <span class="o">=</span> <span class="p">{}</span> <span class="bp">self</span><span class="o">.</span><span class="n">_namespace_dict</span> <span class="o">=</span> <span class="p">{}</span> <span class="bp">self</span><span class="o">.</span><span class="n">_app_dict</span> <span class="o">=</span> <span class="p">{}</span> <span class="c1"># set of dotted paths to all functions and classes that are used in</span> <span class="c1"># urlpatterns</span> <span class="bp">self</span><span class="o">.</span><span class="n">_callback_strs</span> <span class="o">=</span> <span class="nb">set</span><span class="p">()</span> <span class="bp">self</span><span class="o">.</span><span class="n">_populated</span> <span class="o">=</span> <span class="kc">False</span> <span class="k">def</span> <span class="nf">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">urlconf_name</span><span class="p">,</span> <span class="nb">list</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">urlconf_name</span><span class="p">):</span> <span class="c1"># Don't bother to output the whole list, it can be huge</span> <span class="n">urlconf_repr</span> <span class="o">=</span> <span class="s1">'<</span><span class="si">%s</span><span class="s1"> list>'</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">urlconf_name</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">__class__</span><span class="o">.</span><span class="n">__name__</span> <span class="k">else</span><span class="p">:</span> <span class="n">urlconf_repr</span> <span class="o">=</span> <span class="nb">repr</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">urlconf_name</span><span class="p">)</span> <span class="k">return</span> <span class="nb">str</span><span class="p">(</span><span class="s1">'<</span><span class="si">%s</span><span class="s1"> </span><span class="si">%s</span><span class="s1"> (</span><span class="si">%s</span><span class="s1">:</span><span class="si">%s</span><span class="s1">) </span><span class="si">%s</span><span class="s1">>'</span><span class="p">)</span> <span class="o">%</span> <span class="p">(</span> <span class="bp">self</span><span class="o">.</span><span class="n">__class__</span><span class="o">.</span><span class="n">__name__</span><span class="p">,</span> <span class="n">urlconf_repr</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">app_name</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">namespace</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">regex</span><span class="o">.</span><span class="n">pattern</span><span class="p">)</span> <span class="k">def</span> <span class="nf">_populate</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> <span class="n">lookups</span> <span class="o">=</span> <span class="n">MultiValueDict</span><span class="p">()</span> <span class="n">namespaces</span> <span class="o">=</span> <span class="p">{}</span> <span class="n">apps</span> <span class="o">=</span> <span class="p">{}</span> <span class="n">language_code</span> <span class="o">=</span> <span class="n">get_language</span><span class="p">()</span> <span class="k">for</span> <span class="n">pattern</span> <span class="ow">in</span> <span class="nb">reversed</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">url_patterns</span><span class="p">):</span> <span class="k">if</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">pattern</span><span class="p">,</span> <span class="s1">'_callback_str'</span><span class="p">):</span> <span class="bp">self</span><span class="o">.</span><span class="n">_callback_strs</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">pattern</span><span class="o">.</span><span class="n">_callback_str</span><span class="p">)</span> <span class="k">elif</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">pattern</span><span class="p">,</span> <span class="s1">'_callback'</span><span class="p">):</span> <span class="n">callback</span> <span class="o">=</span> <span class="n">pattern</span><span class="o">.</span><span class="n">_callback</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">callback</span><span class="p">,</span> <span class="n">functools</span><span class="o">.</span><span class="n">partial</span><span class="p">):</span> <span class="n">callback</span> <span class="o">=</span> <span class="n">callback</span><span class="o">.</span><span class="n">func</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">callback</span><span class="p">,</span> <span class="s1">'__name__'</span><span class="p">):</span> <span class="n">lookup_str</span> <span class="o">=</span> <span class="n">callback</span><span class="o">.</span><span class="n">__module__</span> <span class="o">+</span> <span class="s2">"."</span> <span class="o">+</span> <span class="n">callback</span><span class="o">.</span><span class="n">__class__</span><span class="o">.</span><span class="n">__name__</span> <span class="k">else</span><span class="p">:</span> <span class="n">lookup_str</span> <span class="o">=</span> <span class="n">callback</span><span class="o">.</span><span class="n">__module__</span> <span class="o">+</span> <span class="s2">"."</span> <span class="o">+</span> <span class="n">callback</span><span class="o">.</span><span class="n">__name__</span> <span class="bp">self</span><span class="o">.</span><span class="n">_callback_strs</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">lookup_str</span><span class="p">)</span> <span class="n">p_pattern</span> <span class="o">=</span> <span class="n">pattern</span><span class="o">.</span><span class="n">regex</span><span class="o">.</span><span class="n">pattern</span> <span class="k">if</span> <span class="n">p_pattern</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="s1">'^'</span><span class="p">):</span> <span class="n">p_pattern</span> <span class="o">=</span> <span class="n">p_pattern</span><span class="p">[</span><span class="mi">1</span><span class="p">:]</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">pattern</span><span class="p">,</span> <span class="n">RegexURLResolver</span><span class="p">):</span> <span class="k">if</span> <span class="n">pattern</span><span class="o">.</span><span class="n">namespace</span><span class="p">:</span> <span class="n">namespaces</span><span class="p">[</span><span class="n">pattern</span><span class="o">.</span><span class="n">namespace</span><span class="p">]</span> <span class="o">=</span> <span class="p">(</span><span class="n">p_pattern</span><span class="p">,</span> <span class="n">pattern</span><span class="p">)</span> <span class="k">if</span> <span class="n">pattern</span><span class="o">.</span><span class="n">app_name</span><span class="p">:</span> <span class="n">apps</span><span class="o">.</span><span class="n">setdefault</span><span class="p">(</span><span class="n">pattern</span><span class="o">.</span><span class="n">app_name</span><span class="p">,</span> <span class="p">[])</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">pattern</span><span class="o">.</span><span class="n">namespace</span><span class="p">)</span> <span class="k">else</span><span class="p">:</span> <span class="n">parent_pat</span> <span class="o">=</span> <span class="n">pattern</span><span class="o">.</span><span class="n">regex</span><span class="o">.</span><span class="n">pattern</span> <span class="k">for</span> <span class="n">name</span> <span class="ow">in</span> <span class="n">pattern</span><span class="o">.</span><span class="n">reverse_dict</span><span class="p">:</span> <span class="k">for</span> <span class="n">matches</span><span class="p">,</span> <span class="n">pat</span><span class="p">,</span> <span class="n">defaults</span> <span class="ow">in</span> <span class="n">pattern</span><span class="o">.</span><span class="n">reverse_dict</span><span class="o">.</span><span class="n">getlist</span><span class="p">(</span><span class="n">name</span><span class="p">):</span> <span class="n">new_matches</span> <span class="o">=</span> <span class="n">normalize</span><span class="p">(</span><span class="n">parent_pat</span> <span class="o">+</span> <span class="n">pat</span><span class="p">)</span> <span class="n">lookups</span><span class="o">.</span><span class="n">appendlist</span><span class="p">(</span> <span class="n">name</span><span class="p">,</span> <span class="p">(</span> <span class="n">new_matches</span><span class="p">,</span> <span class="n">p_pattern</span> <span class="o">+</span> <span class="n">pat</span><span class="p">,</span> <span class="nb">dict</span><span class="p">(</span><span class="n">defaults</span><span class="p">,</span> <span class="o">**</span><span class="n">pattern</span><span class="o">.</span><span class="n">default_kwargs</span><span class="p">),</span> <span class="p">)</span> <span class="p">)</span> <span class="k">for</span> <span class="n">namespace</span><span class="p">,</span> <span class="p">(</span><span class="n">prefix</span><span class="p">,</span> <span class="n">sub_pattern</span><span class="p">)</span> <span class="ow">in</span> <span class="n">pattern</span><span class="o">.</span><span class="n">namespace_dict</span><span class="o">.</span><span class="n">items</span><span class="p">():</span> <span class="n">namespaces</span><span class="p">[</span><span class="n">namespace</span><span class="p">]</span> <span class="o">=</span> <span class="p">(</span><span class="n">p_pattern</span> <span class="o">+</span> <span class="n">prefix</span><span class="p">,</span> <span class="n">sub_pattern</span><span class="p">)</span> <span class="k">for</span> <span class="n">app_name</span><span class="p">,</span> <span class="n">namespace_list</span> <span class="ow">in</span> <span class="n">pattern</span><span class="o">.</span><span class="n">app_dict</span><span class="o">.</span><span class="n">items</span><span class="p">():</span> <span class="n">apps</span><span class="o">.</span><span class="n">setdefault</span><span class="p">(</span><span class="n">app_name</span><span class="p">,</span> <span class="p">[])</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span><span class="n">namespace_list</span><span class="p">)</span> <span class="bp">self</span><span class="o">.</span><span class="n">_callback_strs</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">pattern</span><span class="o">.</span><span class="n">_callback_strs</span><span class="p">)</span> <span class="k">else</span><span class="p">:</span> <span class="n">bits</span> <span class="o">=</span> <span class="n">normalize</span><span class="p">(</span><span class="n">p_pattern</span><span class="p">)</span> <span class="n">lookups</span><span class="o">.</span><span class="n">appendlist</span><span class="p">(</span><span class="n">pattern</span><span class="o">.</span><span class="n">callback</span><span class="p">,</span> <span class="p">(</span><span class="n">bits</span><span class="p">,</span> <span class="n">p_pattern</span><span class="p">,</span> <span class="n">pattern</span><span class="o">.</span><span class="n">default_args</span><span class="p">))</span> <span class="k">if</span> <span class="n">pattern</span><span class="o">.</span><span class="n">name</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span> <span class="n">lookups</span><span class="o">.</span><span class="n">appendlist</span><span class="p">(</span><span class="n">pattern</span><span class="o">.</span><span class="n">name</span><span class="p">,</span> <span class="p">(</span><span class="n">bits</span><span class="p">,</span> <span class="n">p_pattern</span><span class="p">,</span> <span class="n">pattern</span><span class="o">.</span><span class="n">default_args</span><span class="p">))</span> <span class="bp">self</span><span class="o">.</span><span class="n">_reverse_dict</span><span class="p">[</span><span class="n">language_code</span><span class="p">]</span> <span class="o">=</span> <span class="n">lookups</span> <span class="bp">self</span><span class="o">.</span><span class="n">_namespace_dict</span><span class="p">[</span><span class="n">language_code</span><span class="p">]</span> <span class="o">=</span> <span class="n">namespaces</span> <span class="bp">self</span><span class="o">.</span><span class="n">_app_dict</span><span class="p">[</span><span class="n">language_code</span><span class="p">]</span> <span class="o">=</span> <span class="n">apps</span> <span class="bp">self</span><span class="o">.</span><span class="n">_populated</span> <span class="o">=</span> <span class="kc">True</span> <span class="nd">@property</span> <span class="k">def</span> <span class="nf">reverse_dict</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> <span class="n">language_code</span> <span class="o">=</span> <span class="n">get_language</span><span class="p">()</span> <span class="k">if</span> <span class="n">language_code</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_reverse_dict</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">_populate</span><span class="p">()</span> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_reverse_dict</span><span class="p">[</span><span class="n">language_code</span><span class="p">]</span> <span class="nd">@property</span> <span class="k">def</span> <span class="nf">namespace_dict</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> <span class="n">language_code</span> <span class="o">=</span> <span class="n">get_language</span><span class="p">()</span> <span class="k">if</span> <span class="n">language_code</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_namespace_dict</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">_populate</span><span class="p">()</span> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_namespace_dict</span><span class="p">[</span><span class="n">language_code</span><span class="p">]</span> <span class="nd">@property</span> <span class="k">def</span> <span class="nf">app_dict</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> <span class="n">language_code</span> <span class="o">=</span> <span class="n">get_language</span><span class="p">()</span> <span class="k">if</span> <span class="n">language_code</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_app_dict</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">_populate</span><span class="p">()</span> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_app_dict</span><span class="p">[</span><span class="n">language_code</span><span class="p">]</span> <span class="k">def</span> <span class="nf">_is_callback</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span> <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">_populated</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">_populate</span><span class="p">()</span> <span class="k">return</span> <span class="n">name</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_callback_strs</span> <span class="k">def</span> <span class="nf">resolve</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">path</span><span class="p">):</span> <span class="n">path</span> <span class="o">=</span> <span class="n">force_text</span><span class="p">(</span><span class="n">path</span><span class="p">)</span> <span class="c1"># path may be a reverse_lazy object</span> <span class="n">tried</span> <span class="o">=</span> <span class="p">[]</span> <span class="n">match</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">regex</span><span class="o">.</span><span class="n">search</span><span class="p">(</span><span class="n">path</span><span class="p">)</span> <span class="k">if</span> <span class="n">match</span><span class="p">:</span> <span class="n">new_path</span> <span class="o">=</span> <span class="n">path</span><span class="p">[</span><span class="n">match</span><span class="o">.</span><span class="n">end</span><span class="p">():]</span> <span class="k">for</span> <span class="n">pattern</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">url_patterns</span><span class="p">:</span> <span class="k">try</span><span class="p">:</span> <span class="n">sub_match</span> <span class="o">=</span> <span class="n">pattern</span><span class="o">.</span><span class="n">resolve</span><span class="p">(</span><span class="n">new_path</span><span class="p">)</span> <span class="k">except</span> <span class="n">Resolver404</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span> <span class="n">sub_tried</span> <span class="o">=</span> <span class="n">e</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'tried'</span><span class="p">)</span> <span class="k">if</span> <span class="n">sub_tried</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span> <span class="n">tried</span><span class="o">.</span><span class="n">extend</span><span class="p">([</span><span class="n">pattern</span><span class="p">]</span> <span class="o">+</span> <span class="n">t</span> <span class="k">for</span> <span class="n">t</span> <span class="ow">in</span> <span class="n">sub_tried</span><span class="p">)</span> <span class="k">else</span><span class="p">:</span> <span class="n">tried</span><span class="o">.</span><span class="n">append</span><span class="p">([</span><span class="n">pattern</span><span class="p">])</span> <span class="k">else</span><span class="p">:</span> <span class="k">if</span> <span class="n">sub_match</span><span class="p">:</span> <span class="n">sub_match_dict</span> <span class="o">=</span> <span class="nb">dict</span><span class="p">(</span><span class="n">match</span><span class="o">.</span><span class="n">groupdict</span><span class="p">(),</span> <span class="o">**</span><span class="bp">self</span><span class="o">.</span><span class="n">default_kwargs</span><span class="p">)</span> <span class="n">sub_match_dict</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">sub_match</span><span class="o">.</span><span class="n">kwargs</span><span class="p">)</span> <span class="k">return</span> <span class="n">ResolverMatch</span><span class="p">(</span> <span class="n">sub_match</span><span class="o">.</span><span class="n">func</span><span class="p">,</span> <span class="n">sub_match</span><span class="o">.</span><span class="n">args</span><span class="p">,</span> <span class="n">sub_match_dict</span><span class="p">,</span> <span class="n">sub_match</span><span class="o">.</span><span class="n">url_name</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">app_name</span> <span class="ow">or</span> <span class="n">sub_match</span><span class="o">.</span><span class="n">app_name</span><span class="p">,</span> <span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">namespace</span><span class="p">]</span> <span class="o">+</span> <span class="n">sub_match</span><span class="o">.</span><span class="n">namespaces</span> <span class="p">)</span> <span class="n">tried</span><span class="o">.</span><span class="n">append</span><span class="p">([</span><span class="n">pattern</span><span class="p">])</span> <span class="k">raise</span> <span class="n">Resolver404</span><span class="p">({</span><span class="s1">'tried'</span><span class="p">:</span> <span class="n">tried</span><span class="p">,</span> <span class="s1">'path'</span><span class="p">:</span> <span class="n">new_path</span><span class="p">})</span> <span class="k">raise</span> <span class="n">Resolver404</span><span class="p">({</span><span class="s1">'path'</span><span class="p">:</span> <span class="n">path</span><span class="p">})</span> <span class="nd">@property</span> <span class="k">def</span> <span class="nf">urlconf_module</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> <span class="k">try</span><span class="p">:</span> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_urlconf_module</span> <span class="k">except</span> <span class="ne">AttributeError</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">_urlconf_module</span> <span class="o">=</span> <span class="n">import_module</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">urlconf_name</span><span class="p">)</span> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_urlconf_module</span> <span class="nd">@property</span> <span class="k">def</span> <span class="nf">url_patterns</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> <span class="c1"># urlconf_module might be a valid set of patterns, so we default to it</span> <span class="n">patterns</span> <span class="o">=</span> <span class="nb">getattr</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">urlconf_module</span><span class="p">,</span> <span class="s2">"urlpatterns"</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">urlconf_module</span><span class="p">)</span> <span class="k">try</span><span class="p">:</span> <span class="nb">iter</span><span class="p">(</span><span class="n">patterns</span><span class="p">)</span> <span class="k">except</span> <span class="ne">TypeError</span><span class="p">:</span> <span class="n">msg</span> <span class="o">=</span> <span class="p">(</span> <span class="s2">"The included urlconf '</span><span class="si">{name}</span><span class="s2">' does not appear to have any "</span> <span class="s2">"patterns in it. If you see valid patterns in the file then "</span> <span class="s2">"the issue is probably caused by a circular import."</span> <span class="p">)</span> <span class="k">raise</span> <span class="n">ImproperlyConfigured</span><span class="p">(</span><span class="n">msg</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">name</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">urlconf_name</span><span class="p">))</span> <span class="k">return</span> <span class="n">patterns</span> <span class="k">def</span> <span class="nf">resolve_error_handler</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">view_type</span><span class="p">):</span> <span class="n">callback</span> <span class="o">=</span> <span class="nb">getattr</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">urlconf_module</span><span class="p">,</span> <span class="s1">'handler</span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="n">view_type</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="n">callback</span><span class="p">:</span> <span class="c1"># No handler specified in file; use default</span> <span class="c1"># Lazy import, since django.urls imports this file</span> <span class="kn">from</span> <span class="nn">django.conf</span> <span class="k">import</span> <span class="n">urls</span> <span class="n">callback</span> <span class="o">=</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">urls</span><span class="p">,</span> <span class="s1">'handler</span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="n">view_type</span><span class="p">)</span> <span class="k">return</span> <span class="n">get_callable</span><span class="p">(</span><span class="n">callback</span><span class="p">),</span> <span class="p">{}</span> <span class="k">def</span> <span class="nf">reverse</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lookup_view</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_reverse_with_prefix</span><span class="p">(</span><span class="n">lookup_view</span><span class="p">,</span> <span class="s1">''</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> <span class="k">def</span> <span class="nf">_reverse_with_prefix</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lookup_view</span><span class="p">,</span> <span class="n">_prefix</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span> <span class="k">if</span> <span class="n">args</span> <span class="ow">and</span> <span class="n">kwargs</span><span class="p">:</span> <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s2">"Don't mix *args and **kwargs in call to reverse()!"</span><span class="p">)</span> <span class="n">text_args</span> <span class="o">=</span> <span class="p">[</span><span class="n">force_text</span><span class="p">(</span><span class="n">v</span><span class="p">)</span> <span class="k">for</span> <span class="n">v</span> <span class="ow">in</span> <span class="n">args</span><span class="p">]</span> <span class="n">text_kwargs</span> <span class="o">=</span> <span class="p">{</span><span class="n">k</span><span class="p">:</span> <span class="n">force_text</span><span class="p">(</span><span class="n">v</span><span class="p">)</span> <span class="k">for</span> <span class="p">(</span><span class="n">k</span><span class="p">,</span> <span class="n">v</span><span class="p">)</span> <span class="ow">in</span> <span class="n">kwargs</span><span class="o">.</span><span class="n">items</span><span class="p">()}</span> <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">_populated</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">_populate</span><span class="p">()</span> <span class="n">original_lookup</span> <span class="o">=</span> <span class="n">lookup_view</span> <span class="k">try</span><span class="p">:</span> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_is_callback</span><span class="p">(</span><span class="n">lookup_view</span><span class="p">):</span> <span class="n">lookup_view</span> <span class="o">=</span> <span class="n">get_callable</span><span class="p">(</span><span class="n">lookup_view</span><span class="p">,</span> <span class="kc">True</span><span class="p">)</span> <span class="k">except</span> <span class="p">(</span><span class="ne">ImportError</span><span class="p">,</span> <span class="ne">AttributeError</span><span class="p">)</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span> <span class="k">raise</span> <span class="n">NoReverseMatch</span><span class="p">(</span><span class="s2">"Error importing '</span><span class="si">%s</span><span class="s2">': </span><span class="si">%s</span><span class="s2">."</span> <span class="o">%</span> <span class="p">(</span><span class="n">lookup_view</span><span class="p">,</span> <span class="n">e</span><span class="p">))</span> <span class="k">else</span><span class="p">:</span> <span class="k">if</span> <span class="ow">not</span> <span class="n">callable</span><span class="p">(</span><span class="n">original_lookup</span><span class="p">)</span> <span class="ow">and</span> <span class="n">callable</span><span class="p">(</span><span class="n">lookup_view</span><span class="p">):</span> <span class="n">warnings</span><span class="o">.</span><span class="n">warn</span><span class="p">(</span> <span class="s1">'Reversing by dotted path is deprecated (</span><span class="si">%s</span><span class="s1">).'</span> <span class="o">%</span> <span class="n">original_lookup</span><span class="p">,</span> <span class="n">RemovedInDjango110Warning</span><span class="p">,</span> <span class="n">stacklevel</span><span class="o">=</span><span class="mi">3</span> <span class="p">)</span> <span class="n">possibilities</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">reverse_dict</span><span class="o">.</span><span class="n">getlist</span><span class="p">(</span><span class="n">lookup_view</span><span class="p">)</span> <span class="n">prefix_norm</span><span class="p">,</span> <span class="n">prefix_args</span> <span class="o">=</span> <span class="n">normalize</span><span class="p">(</span><span class="n">urlquote</span><span class="p">(</span><span class="n">_prefix</span><span class="p">))[</span><span class="mi">0</span><span class="p">]</span> <span class="k">for</span> <span class="n">possibility</span><span class="p">,</span> <span class="n">pattern</span><span class="p">,</span> <span class="n">defaults</span> <span class="ow">in</span> <span class="n">possibilities</span><span class="p">:</span> <span class="k">for</span> <span class="n">result</span><span class="p">,</span> <span class="n">params</span> <span class="ow">in</span> <span class="n">possibility</span><span class="p">:</span> <span class="k">if</span> <span class="n">args</span><span class="p">:</span> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">args</span><span class="p">)</span> <span class="o">!=</span> <span class="nb">len</span><span class="p">(</span><span class="n">params</span><span class="p">)</span> <span class="o">+</span> <span class="nb">len</span><span class="p">(</span><span class="n">prefix_args</span><span class="p">):</span> <span class="k">continue</span> <span class="n">candidate_subs</span> <span class="o">=</span> <span class="nb">dict</span><span class="p">(</span><span class="nb">zip</span><span class="p">(</span><span class="n">prefix_args</span> <span class="o">+</span> <span class="n">params</span><span class="p">,</span> <span class="n">text_args</span><span class="p">))</span> <span class="k">else</span><span class="p">:</span> <span class="k">if</span> <span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">kwargs</span><span class="o">.</span><span class="n">keys</span><span class="p">())</span> <span class="o">|</span> <span class="nb">set</span><span class="p">(</span><span class="n">defaults</span><span class="o">.</span><span class="n">keys</span><span class="p">())</span> <span class="o">!=</span> <span class="nb">set</span><span class="p">(</span><span class="n">params</span><span class="p">)</span> <span class="o">|</span> <span class="nb">set</span><span class="p">(</span><span class="n">defaults</span><span class="o">.</span><span class="n">keys</span><span class="p">())</span> <span class="o">|</span> <span class="nb">set</span><span class="p">(</span><span class="n">prefix_args</span><span class="p">)):</span> <span class="k">continue</span> <span class="n">matches</span> <span class="o">=</span> <span class="kc">True</span> <span class="k">for</span> <span class="n">k</span><span class="p">,</span> <span class="n">v</span> <span class="ow">in</span> <span class="n">defaults</span><span class="o">.</span><span class="n">items</span><span class="p">():</span> <span class="k">if</span> <span class="n">kwargs</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">k</span><span class="p">,</span> <span class="n">v</span><span class="p">)</span> <span class="o">!=</span> <span class="n">v</span><span class="p">:</span> <span class="n">matches</span> <span class="o">=</span> <span class="kc">False</span> <span class="k">break</span> <span class="k">if</span> <span class="ow">not</span> <span class="n">matches</span><span class="p">:</span> <span class="k">continue</span> <span class="n">candidate_subs</span> <span class="o">=</span> <span class="n">text_kwargs</span> <span class="c1"># WSGI provides decoded URLs, without %xx escapes, and the URL</span> <span class="c1"># resolver operates on such URLs. First substitute arguments</span> <span class="c1"># without quoting to build a decoded URL and look for a match.</span> <span class="c1"># Then, if we have a match, redo the substitution with quoted</span> <span class="c1"># arguments in order to return a properly encoded URL.</span> <span class="n">candidate_pat</span> <span class="o">=</span> <span class="n">prefix_norm</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">'%'</span><span class="p">,</span> <span class="s1">'</span><span class="si">%%</span><span class="s1">'</span><span class="p">)</span> <span class="o">+</span> <span class="n">result</span> <span class="k">if</span> <span class="n">re</span><span class="o">.</span><span class="n">search</span><span class="p">(</span><span class="s1">'^</span><span class="si">%s%s</span><span class="s1">'</span> <span class="o">%</span> <span class="p">(</span><span class="n">prefix_norm</span><span class="p">,</span> <span class="n">pattern</span><span class="p">),</span> <span class="n">candidate_pat</span> <span class="o">%</span> <span class="n">candidate_subs</span><span class="p">,</span> <span class="n">re</span><span class="o">.</span><span class="n">UNICODE</span><span class="p">):</span> <span class="c1"># safe characters from `pchar` definition of RFC 3986</span> <span class="n">candidate_subs</span> <span class="o">=</span> <span class="nb">dict</span><span class="p">((</span><span class="n">k</span><span class="p">,</span> <span class="n">urlquote</span><span class="p">(</span><span class="n">v</span><span class="p">,</span> <span class="n">safe</span><span class="o">=</span><span class="n">RFC3986_SUBDELIMS</span> <span class="o">+</span> <span class="nb">str</span><span class="p">(</span><span class="s1">'/~:@'</span><span class="p">)))</span> <span class="k">for</span> <span class="p">(</span><span class="n">k</span><span class="p">,</span> <span class="n">v</span><span class="p">)</span> <span class="ow">in</span> <span class="n">candidate_subs</span><span class="o">.</span><span class="n">items</span><span class="p">())</span> <span class="n">url</span> <span class="o">=</span> <span class="n">candidate_pat</span> <span class="o">%</span> <span class="n">candidate_subs</span> <span class="c1"># Don't allow construction of scheme relative urls.</span> <span class="k">if</span> <span class="n">url</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="s1">'//'</span><span class="p">):</span> <span class="n">url</span> <span class="o">=</span> <span class="s1">'/</span><span class="si">%%</span><span class="s1">2F</span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="n">url</span><span class="p">[</span><span class="mi">2</span><span class="p">:]</span> <span class="k">return</span> <span class="n">url</span> <span class="c1"># lookup_view can be URL label, or dotted path, or callable, Any of</span> <span class="c1"># these can be passed in at the top, but callables are not friendly in</span> <span class="c1"># error messages.</span> <span class="n">m</span> <span class="o">=</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">lookup_view</span><span class="p">,</span> <span class="s1">'__module__'</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> <span class="n">n</span> <span class="o">=</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">lookup_view</span><span class="p">,</span> <span class="s1">'__name__'</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> <span class="k">if</span> <span class="n">m</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> <span class="ow">and</span> <span class="n">n</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span> <span class="n">lookup_view_s</span> <span class="o">=</span> <span class="s2">"</span><span class="si">%s</span><span class="s2">.</span><span class="si">%s</span><span class="s2">"</span> <span class="o">%</span> <span class="p">(</span><span class="n">m</span><span class="p">,</span> <span class="n">n</span><span class="p">)</span> <span class="k">else</span><span class="p">:</span> <span class="n">lookup_view_s</span> <span class="o">=</span> <span class="n">lookup_view</span> <span class="n">patterns</span> <span class="o">=</span> <span class="p">[</span><span class="n">pattern</span> <span class="k">for</span> <span class="p">(</span><span class="n">possibility</span><span class="p">,</span> <span class="n">pattern</span><span class="p">,</span> <span class="n">defaults</span><span class="p">)</span> <span class="ow">in</span> <span class="n">possibilities</span><span class="p">]</span> <span class="k">raise</span> <span class="n">NoReverseMatch</span><span class="p">(</span><span class="s2">"Reverse for '</span><span class="si">%s</span><span class="s2">' with arguments '</span><span class="si">%s</span><span class="s2">' and keyword "</span> <span class="s2">"arguments '</span><span class="si">%s</span><span class="s2">' not found. </span><span class="si">%d</span><span class="s2"> pattern(s) tried: </span><span class="si">%s</span><span class="s2">"</span> <span class="o">%</span> <span class="p">(</span><span class="n">lookup_view_s</span><span class="p">,</span> <span class="n">args</span><span class="p">,</span> <span class="n">kwargs</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="n">patterns</span><span class="p">),</span> <span class="n">patterns</span><span class="p">))</span> <span class="k">class</span> <span class="nc">LocaleRegexURLResolver</span><span class="p">(</span><span class="n">RegexURLResolver</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> A URL resolver that always matches the active language code as URL prefix.</span> <span class="sd"> Rather than taking a regex argument, we just override the ``regex``</span> <span class="sd"> function to always return the active language-code as regex.</span> <span class="sd"> """</span> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">urlconf_name</span><span class="p">,</span> <span class="n">default_kwargs</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">app_name</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">namespace</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span> <span class="nb">super</span><span class="p">(</span><span class="n">LocaleRegexURLResolver</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span> <span class="kc">None</span><span class="p">,</span> <span class="n">urlconf_name</span><span class="p">,</span> <span class="n">default_kwargs</span><span class="p">,</span> <span class="n">app_name</span><span class="p">,</span> <span class="n">namespace</span><span class="p">)</span> <span class="nd">@property</span> <span class="k">def</span> <span class="nf">regex</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> <span class="n">language_code</span> <span class="o">=</span> <span class="n">get_language</span><span class="p">()</span> <span class="k">if</span> <span class="n">language_code</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_regex_dict</span><span class="p">:</span> <span class="n">regex_compiled</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">compile</span><span class="p">(</span><span class="s1">'^</span><span class="si">%s</span><span class="s1">/'</span> <span class="o">%</span> <span class="n">language_code</span><span class="p">,</span> <span class="n">re</span><span class="o">.</span><span class="n">UNICODE</span><span class="p">)</span> <span class="bp">self</span><span class="o">.</span><span class="n">_regex_dict</span><span class="p">[</span><span class="n">language_code</span><span class="p">]</span> <span class="o">=</span> <span class="n">regex_compiled</span> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_regex_dict</span><span class="p">[</span><span class="n">language_code</span><span class="p">]</span> <div class="viewcode-block" id="resolve"><a class="viewcode-back" href="../../../ref/urlresolvers.html#django.core.urlresolvers.resolve">[docs]</a><span class="k">def</span> <span class="nf">resolve</span><span class="p">(</span><span class="n">path</span><span class="p">,</span> <span class="n">urlconf</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span> <span class="k">if</span> <span class="n">urlconf</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> <span class="n">urlconf</span> <span class="o">=</span> <span class="n">get_urlconf</span><span class="p">()</span> <span class="k">return</span> <span class="n">get_resolver</span><span class="p">(</span><span class="n">urlconf</span><span class="p">)</span><span class="o">.</span><span class="n">resolve</span><span class="p">(</span><span class="n">path</span><span class="p">)</span></div> <div class="viewcode-block" id="reverse"><a class="viewcode-back" href="../../../ref/urlresolvers.html#django.core.urlresolvers.reverse">[docs]</a><span class="k">def</span> <span class="nf">reverse</span><span class="p">(</span><span class="n">viewname</span><span class="p">,</span> <span class="n">urlconf</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">args</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">kwargs</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">prefix</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">current_app</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span> <span class="k">if</span> <span class="n">urlconf</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> <span class="n">urlconf</span> <span class="o">=</span> <span class="n">get_urlconf</span><span class="p">()</span> <span class="n">resolver</span> <span class="o">=</span> <span class="n">get_resolver</span><span class="p">(</span><span class="n">urlconf</span><span class="p">)</span> <span class="n">args</span> <span class="o">=</span> <span class="n">args</span> <span class="ow">or</span> <span class="p">[]</span> <span class="n">kwargs</span> <span class="o">=</span> <span class="n">kwargs</span> <span class="ow">or</span> <span class="p">{}</span> <span class="k">if</span> <span class="n">prefix</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> <span class="n">prefix</span> <span class="o">=</span> <span class="n">get_script_prefix</span><span class="p">()</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">viewname</span><span class="p">,</span> <span class="n">six</span><span class="o">.</span><span class="n">string_types</span><span class="p">):</span> <span class="n">view</span> <span class="o">=</span> <span class="n">viewname</span> <span class="k">else</span><span class="p">:</span> <span class="n">parts</span> <span class="o">=</span> <span class="n">viewname</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">':'</span><span class="p">)</span> <span class="n">parts</span><span class="o">.</span><span class="n">reverse</span><span class="p">()</span> <span class="n">view</span> <span class="o">=</span> <span class="n">parts</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="n">path</span> <span class="o">=</span> <span class="n">parts</span><span class="p">[</span><span class="mi">1</span><span class="p">:]</span> <span class="n">resolved_path</span> <span class="o">=</span> <span class="p">[]</span> <span class="n">ns_pattern</span> <span class="o">=</span> <span class="s1">''</span> <span class="k">while</span> <span class="n">path</span><span class="p">:</span> <span class="n">ns</span> <span class="o">=</span> <span class="n">path</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span> <span class="c1"># Lookup the name to see if it could be an app identifier</span> <span class="k">try</span><span class="p">:</span> <span class="n">app_list</span> <span class="o">=</span> <span class="n">resolver</span><span class="o">.</span><span class="n">app_dict</span><span class="p">[</span><span class="n">ns</span><span class="p">]</span> <span class="c1"># Yes! Path part matches an app in the current Resolver</span> <span class="k">if</span> <span class="n">current_app</span> <span class="ow">and</span> <span class="n">current_app</span> <span class="ow">in</span> <span class="n">app_list</span><span class="p">:</span> <span class="c1"># If we are reversing for a particular app,</span> <span class="c1"># use that namespace</span> <span class="n">ns</span> <span class="o">=</span> <span class="n">current_app</span> <span class="k">elif</span> <span class="n">ns</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">app_list</span><span class="p">:</span> <span class="c1"># The name isn't shared by one of the instances</span> <span class="c1"># (i.e., the default) so just pick the first instance</span> <span class="c1"># as the default.</span> <span class="n">ns</span> <span class="o">=</span> <span class="n">app_list</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="k">except</span> <span class="ne">KeyError</span><span class="p">:</span> <span class="k">pass</span> <span class="k">try</span><span class="p">:</span> <span class="n">extra</span><span class="p">,</span> <span class="n">resolver</span> <span class="o">=</span> <span class="n">resolver</span><span class="o">.</span><span class="n">namespace_dict</span><span class="p">[</span><span class="n">ns</span><span class="p">]</span> <span class="n">resolved_path</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">ns</span><span class="p">)</span> <span class="n">ns_pattern</span> <span class="o">=</span> <span class="n">ns_pattern</span> <span class="o">+</span> <span class="n">extra</span> <span class="k">except</span> <span class="ne">KeyError</span> <span class="k">as</span> <span class="n">key</span><span class="p">:</span> <span class="k">if</span> <span class="n">resolved_path</span><span class="p">:</span> <span class="k">raise</span> <span class="n">NoReverseMatch</span><span class="p">(</span> <span class="s2">"</span><span class="si">%s</span><span class="s2"> is not a registered namespace inside '</span><span class="si">%s</span><span class="s2">'"</span> <span class="o">%</span> <span class="p">(</span><span class="n">key</span><span class="p">,</span> <span class="s1">':'</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">resolved_path</span><span class="p">)))</span> <span class="k">else</span><span class="p">:</span> <span class="k">raise</span> <span class="n">NoReverseMatch</span><span class="p">(</span><span class="s2">"</span><span class="si">%s</span><span class="s2"> is not a registered namespace"</span> <span class="o">%</span> <span class="n">key</span><span class="p">)</span> <span class="k">if</span> <span class="n">ns_pattern</span><span class="p">:</span> <span class="n">resolver</span> <span class="o">=</span> <span class="n">get_ns_resolver</span><span class="p">(</span><span class="n">ns_pattern</span><span class="p">,</span> <span class="n">resolver</span><span class="p">)</span> <span class="k">return</span> <span class="n">force_text</span><span class="p">(</span><span class="n">iri_to_uri</span><span class="p">(</span><span class="n">resolver</span><span class="o">.</span><span class="n">_reverse_with_prefix</span><span class="p">(</span><span class="n">view</span><span class="p">,</span> <span class="n">prefix</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)))</span></div> <span class="n">reverse_lazy</span> <span class="o">=</span> <span class="n">lazy</span><span class="p">(</span><span class="n">reverse</span><span class="p">,</span> <span class="n">six</span><span class="o">.</span><span class="n">text_type</span><span class="p">)</span> <span class="k">def</span> <span class="nf">clear_url_caches</span><span class="p">():</span> <span class="n">get_callable</span><span class="o">.</span><span class="n">cache_clear</span><span class="p">()</span> <span class="n">get_resolver</span><span class="o">.</span><span class="n">cache_clear</span><span class="p">()</span> <span class="n">get_ns_resolver</span><span class="o">.</span><span class="n">cache_clear</span><span class="p">()</span> <span class="k">def</span> <span class="nf">set_script_prefix</span><span class="p">(</span><span class="n">prefix</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> Sets the script prefix for the current thread.</span> <span class="sd"> """</span> <span class="k">if</span> <span class="ow">not</span> <span class="n">prefix</span><span class="o">.</span><span class="n">endswith</span><span class="p">(</span><span class="s1">'/'</span><span class="p">):</span> <span class="n">prefix</span> <span class="o">+=</span> <span class="s1">'/'</span> <span class="n">_prefixes</span><span class="o">.</span><span class="n">value</span> <span class="o">=</span> <span class="n">prefix</span> <div class="viewcode-block" id="get_script_prefix"><a class="viewcode-back" href="../../../ref/urlresolvers.html#django.core.urlresolvers.get_script_prefix">[docs]</a><span class="k">def</span> <span class="nf">get_script_prefix</span><span class="p">():</span> <span class="sd">"""</span> <span class="sd"> Returns the currently active script prefix. Useful for client code that</span> <span class="sd"> wishes to construct their own URLs manually (although accessing the request</span> <span class="sd"> instance is normally going to be a lot cleaner).</span> <span class="sd"> """</span> <span class="k">return</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">_prefixes</span><span class="p">,</span> <span class="s2">"value"</span><span class="p">,</span> <span class="s1">'/'</span><span class="p">)</span></div> <span class="k">def</span> <span class="nf">clear_script_prefix</span><span class="p">():</span> <span class="sd">"""</span> <span class="sd"> Unsets the script prefix for the current thread.</span> <span class="sd"> """</span> <span class="k">try</span><span class="p">:</span> <span class="k">del</span> <span class="n">_prefixes</span><span class="o">.</span><span class="n">value</span> <span class="k">except</span> <span class="ne">AttributeError</span><span class="p">:</span> <span class="k">pass</span> <span class="k">def</span> <span class="nf">set_urlconf</span><span class="p">(</span><span class="n">urlconf_name</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> Sets the URLconf for the current thread (overriding the default one in</span> <span class="sd"> settings). Set to None to revert back to the default.</span> <span class="sd"> """</span> <span class="k">if</span> <span class="n">urlconf_name</span><span class="p">:</span> <span class="n">_urlconfs</span><span class="o">.</span><span class="n">value</span> <span class="o">=</span> <span class="n">urlconf_name</span> <span class="k">else</span><span class="p">:</span> <span class="k">if</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">_urlconfs</span><span class="p">,</span> <span class="s2">"value"</span><span class="p">):</span> <span class="k">del</span> <span class="n">_urlconfs</span><span class="o">.</span><span class="n">value</span> <span class="k">def</span> <span class="nf">get_urlconf</span><span class="p">(</span><span class="n">default</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> Returns the root URLconf to use for the current thread if it has been</span> <span class="sd"> changed from the default one.</span> <span class="sd"> """</span> <span class="k">return</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">_urlconfs</span><span class="p">,</span> <span class="s2">"value"</span><span class="p">,</span> <span class="n">default</span><span class="p">)</span> <span class="k">def</span> <span class="nf">is_valid_path</span><span class="p">(</span><span class="n">path</span><span class="p">,</span> <span class="n">urlconf</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> Returns True if the given path resolves against the default URL resolver,</span> <span class="sd"> False otherwise.</span> <span class="sd"> This is a convenience method to make working with "is this a match?" cases</span> <span class="sd"> easier, avoiding unnecessarily indented try...except blocks.</span> <span class="sd"> """</span> <span class="k">try</span><span class="p">:</span> <span class="n">resolve</span><span class="p">(</span><span class="n">path</span><span class="p">,</span> <span class="n">urlconf</span><span class="p">)</span> <span class="k">return</span> <span class="kc">True</span> <span class="k">except</span> <span class="n">Resolver404</span><span class="p">:</span> <span class="k">return</span> <span class="kc">False</span> </pre></div> </div> </div> </div> <div class="yui-b" id="sidebar"> <div class="sphinxsidebar" role="navigation" aria-label="main navigation"> <div class="sphinxsidebarwrapper"> <h3>Browse</h3> <ul> </ul> <h3>You are here:</h3> <ul> <li> <a href="../../../index.html">Django 1.8.19 documentation</a> <ul><li><a href="../../index.html">Module code</a> <ul><li><a href="../../django.html">django</a> <ul><li>django.core.urlresolvers</li></ul> </li></ul></li></ul> </li> </ul> <div id="searchbox" style="display: none" role="search"> <h3>Quick search</h3> <form class="search" action="../../../search.html" method="get"> <div><input type="text" name="q" /></div> <div><input type="submit" value="Go" /></div> <input type="hidden" name="check_keywords" value="yes" /> <input type="hidden" name="area" value="default" /> </form> </div> <script type="text/javascript">$('#searchbox').show(0);</script> </div> </div> <h3>Last update:</h3> <p class="topless">Mar 10, 2018</p> </div> </div> <div id="ft"> <div class="nav"> <a href="../../index.html" title="Module code" accesskey="U">up</a></div> </div> </div> <div class="clearer"></div> </div> </body> </html>