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<h1>Source code for Bcfg2.Compat</h1><div class="highlight"><pre>
<span class="sd">""" Compatibility imports, mostly for Py3k support, but also for</span>
<span class="sd">Python 2.4 and such-like """</span>
<span class="c">###################################################</span>
<span class="c"># #</span>
<span class="c"># IF YOU ADD SOMETHING TO THIS FILE, YOU MUST #</span>
<span class="c"># DOCUMENT IT IN docs/development/compat.txt #</span>
<span class="c"># #</span>
<span class="c">###################################################</span>
<span class="kn">import</span> <span class="nn">sys</span>
<span class="c"># pylint: disable=E0611,W0611,W0622,C0103</span>
<span class="k">try</span><span class="p">:</span>
<span class="kn">from</span> <span class="nn">email.Utils</span> <span class="kn">import</span> <span class="n">formatdate</span>
<span class="k">except</span> <span class="ne">ImportError</span><span class="p">:</span>
<span class="kn">from</span> <span class="nn">email.utils</span> <span class="kn">import</span> <span class="n">formatdate</span>
<span class="c"># urllib imports</span>
<span class="k">try</span><span class="p">:</span>
<span class="kn">from</span> <span class="nn">urlparse</span> <span class="kn">import</span> <span class="n">urljoin</span><span class="p">,</span> <span class="n">urlparse</span>
<span class="kn">from</span> <span class="nn">urllib2</span> <span class="kn">import</span> <span class="n">HTTPBasicAuthHandler</span><span class="p">,</span> \
<span class="n">HTTPPasswordMgrWithDefaultRealm</span><span class="p">,</span> <span class="n">build_opener</span><span class="p">,</span> <span class="n">install_opener</span><span class="p">,</span> \
<span class="n">urlopen</span><span class="p">,</span> <span class="n">HTTPError</span><span class="p">,</span> <span class="n">URLError</span>
<span class="k">except</span> <span class="ne">ImportError</span><span class="p">:</span>
<span class="kn">from</span> <span class="nn">urllib.parse</span> <span class="kn">import</span> <span class="n">urljoin</span><span class="p">,</span> <span class="n">urlparse</span>
<span class="kn">from</span> <span class="nn">urllib.request</span> <span class="kn">import</span> <span class="n">HTTPBasicAuthHandler</span><span class="p">,</span> \
<span class="n">HTTPPasswordMgrWithDefaultRealm</span><span class="p">,</span> <span class="n">build_opener</span><span class="p">,</span> <span class="n">install_opener</span><span class="p">,</span> <span class="n">urlopen</span>
<span class="kn">from</span> <span class="nn">urllib.error</span> <span class="kn">import</span> <span class="n">HTTPError</span><span class="p">,</span> <span class="n">URLError</span>
<span class="k">try</span><span class="p">:</span>
<span class="kn">from</span> <span class="nn">cStringIO</span> <span class="kn">import</span> <span class="n">StringIO</span>
<span class="k">except</span> <span class="ne">ImportError</span><span class="p">:</span>
<span class="kn">from</span> <span class="nn">io</span> <span class="kn">import</span> <span class="n">StringIO</span>
<span class="k">try</span><span class="p">:</span>
<span class="kn">import</span> <span class="nn">ConfigParser</span>
<span class="k">except</span> <span class="ne">ImportError</span><span class="p">:</span>
<span class="kn">import</span> <span class="nn">configparser</span> <span class="kn">as</span> <span class="nn">ConfigParser</span>
<span class="k">try</span><span class="p">:</span>
<span class="kn">import</span> <span class="nn">cPickle</span>
<span class="k">except</span> <span class="ne">ImportError</span><span class="p">:</span>
<span class="kn">import</span> <span class="nn">pickle</span> <span class="kn">as</span> <span class="nn">cPickle</span>
<span class="k">try</span><span class="p">:</span>
<span class="kn">from</span> <span class="nn">Queue</span> <span class="kn">import</span> <span class="n">Queue</span><span class="p">,</span> <span class="n">Empty</span><span class="p">,</span> <span class="n">Full</span>
<span class="k">except</span> <span class="ne">ImportError</span><span class="p">:</span>
<span class="kn">from</span> <span class="nn">queue</span> <span class="kn">import</span> <span class="n">Queue</span><span class="p">,</span> <span class="n">Empty</span><span class="p">,</span> <span class="n">Full</span>
<span class="c"># xmlrpc imports</span>
<span class="k">try</span><span class="p">:</span>
<span class="kn">import</span> <span class="nn">xmlrpclib</span><span class="o">,</span> <span class="nn">SimpleXMLRPCServer</span>
<span class="k">except</span> <span class="ne">ImportError</span><span class="p">:</span>
<span class="kn">import</span> <span class="nn">xmlrpc.client</span> <span class="kn">as</span> <span class="nn">xmlrpclib</span>
<span class="kn">import</span> <span class="nn">xmlrpc.server</span> <span class="kn">as</span> <span class="nn">SimpleXMLRPCServer</span>
<span class="c"># socketserver import</span>
<span class="k">try</span><span class="p">:</span>
<span class="kn">import</span> <span class="nn">SocketServer</span>
<span class="k">except</span> <span class="ne">ImportError</span><span class="p">:</span>
<span class="kn">import</span> <span class="nn">socketserver</span> <span class="kn">as</span> <span class="nn">SocketServer</span>
<span class="c"># httplib imports</span>
<span class="k">try</span><span class="p">:</span>
<span class="kn">import</span> <span class="nn">httplib</span>
<span class="k">except</span> <span class="ne">ImportError</span><span class="p">:</span>
<span class="kn">import</span> <span class="nn">http.client</span> <span class="kn">as</span> <span class="nn">httplib</span>
<span class="k">try</span><span class="p">:</span>
<span class="nb">unicode</span> <span class="o">=</span> <span class="nb">unicode</span>
<span class="k">except</span> <span class="ne">NameError</span><span class="p">:</span>
<span class="nb">unicode</span> <span class="o">=</span> <span class="nb">str</span>
<div class="viewcode-block" id="u_str"><a class="viewcode-back" href="../../development/compat.html#Bcfg2.Compat.u_str">[docs]</a><span class="k">def</span> <span class="nf">u_str</span><span class="p">(</span><span class="n">string</span><span class="p">,</span> <span class="n">encoding</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="sd">""" print to file compatibility """</span>
<span class="k">if</span> <span class="n">sys</span><span class="o">.</span><span class="n">hexversion</span> <span class="o">>=</span> <span class="mh">0x03000000</span><span class="p">:</span>
<span class="k">if</span> <span class="n">encoding</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span>
<span class="k">return</span> <span class="n">string</span><span class="o">.</span><span class="n">encode</span><span class="p">(</span><span class="n">encoding</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="n">string</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">if</span> <span class="n">encoding</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span>
<span class="k">return</span> <span class="nb">unicode</span><span class="p">(</span><span class="n">string</span><span class="p">,</span> <span class="n">encoding</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="nb">unicode</span><span class="p">(</span><span class="n">string</span><span class="p">)</span>
<span class="c"># base64 compat</span></div>
<span class="k">if</span> <span class="n">sys</span><span class="o">.</span><span class="n">hexversion</span> <span class="o">>=</span> <span class="mh">0x03000000</span><span class="p">:</span>
<span class="kn">from</span> <span class="nn">base64</span> <span class="kn">import</span> <span class="n">b64encode</span> <span class="k">as</span> <span class="n">_b64encode</span><span class="p">,</span> <span class="n">b64decode</span> <span class="k">as</span> <span class="n">_b64decode</span>
<span class="n">b64encode</span> <span class="o">=</span> <span class="k">lambda</span> <span class="n">s</span><span class="p">:</span> <span class="n">_b64encode</span><span class="p">(</span><span class="n">s</span><span class="o">.</span><span class="n">encode</span><span class="p">(</span><span class="s">'UTF-8'</span><span class="p">))</span><span class="o">.</span><span class="n">decode</span><span class="p">(</span><span class="s">'UTF-8'</span><span class="p">)</span>
<span class="n">b64decode</span> <span class="o">=</span> <span class="k">lambda</span> <span class="n">s</span><span class="p">:</span> <span class="n">_b64decode</span><span class="p">(</span><span class="n">s</span><span class="o">.</span><span class="n">encode</span><span class="p">(</span><span class="s">'UTF-8'</span><span class="p">))</span><span class="o">.</span><span class="n">decode</span><span class="p">(</span><span class="s">'UTF-8'</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="kn">from</span> <span class="nn">base64</span> <span class="kn">import</span> <span class="n">b64encode</span><span class="p">,</span> <span class="n">b64decode</span>
<span class="k">try</span><span class="p">:</span>
<span class="nb">input</span> <span class="o">=</span> <span class="nb">raw_input</span>
<span class="k">except</span> <span class="ne">NameError</span><span class="p">:</span>
<span class="nb">input</span> <span class="o">=</span> <span class="nb">input</span>
<span class="k">try</span><span class="p">:</span>
<span class="nb">reduce</span> <span class="o">=</span> <span class="nb">reduce</span>
<span class="k">except</span> <span class="ne">NameError</span><span class="p">:</span>
<span class="kn">from</span> <span class="nn">functools</span> <span class="kn">import</span> <span class="nb">reduce</span>
<span class="k">try</span><span class="p">:</span>
<span class="kn">from</span> <span class="nn">collections</span> <span class="kn">import</span> <span class="n">MutableMapping</span>
<span class="k">except</span> <span class="ne">ImportError</span><span class="p">:</span>
<span class="kn">from</span> <span class="nn">UserDict</span> <span class="kn">import</span> <span class="n">DictMixin</span> <span class="k">as</span> <span class="n">MutableMapping</span>
<div class="viewcode-block" id="CmpMixin"><a class="viewcode-back" href="../../development/compat.html#Bcfg2.Compat.CmpMixin">[docs]</a><span class="k">class</span> <span class="nc">CmpMixin</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span>
<span class="sd">""" In Py3K, :meth:`object.__cmp__` is no longer magical, so this</span>
<span class="sd"> mixin can be used to define the rich comparison operators from</span>
<span class="sd"> ``__cmp__`` -- i.e., it makes ``__cmp__`` magical again. """</span>
<span class="k">def</span> <span class="nf">__lt__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">__cmp__</span><span class="p">(</span><span class="n">other</span><span class="p">)</span> <span class="o"><</span> <span class="mi">0</span>
<span class="k">def</span> <span class="nf">__gt__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">__cmp__</span><span class="p">(</span><span class="n">other</span><span class="p">)</span> <span class="o">></span> <span class="mi">0</span>
<span class="k">def</span> <span class="nf">__eq__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">__cmp__</span><span class="p">(</span><span class="n">other</span><span class="p">)</span> <span class="o">==</span> <span class="mi">0</span>
<span class="k">def</span> <span class="nf">__ne__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="k">return</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">__eq__</span><span class="p">(</span><span class="n">other</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">__ge__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">__gt__</span><span class="p">(</span><span class="n">other</span><span class="p">)</span> <span class="ow">or</span> <span class="bp">self</span><span class="o">.</span><span class="n">__eq__</span><span class="p">(</span><span class="n">other</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">__le__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">__lt__</span><span class="p">(</span><span class="n">other</span><span class="p">)</span> <span class="ow">or</span> <span class="bp">self</span><span class="o">.</span><span class="n">__eq__</span><span class="p">(</span><span class="n">other</span><span class="p">)</span>
</div>
<span class="k">try</span><span class="p">:</span>
<span class="kn">from</span> <span class="nn">pkgutil</span> <span class="kn">import</span> <span class="n">walk_packages</span>
<span class="k">except</span> <span class="ne">ImportError</span><span class="p">:</span>
<span class="k">try</span><span class="p">:</span>
<span class="kn">from</span> <span class="nn">pkgutil</span> <span class="kn">import</span> <span class="n">iter_modules</span>
<span class="c"># iter_modules was added in python 2.5; use it to get an exact</span>
<span class="c"># re-implementation of walk_packages if possible</span>
<span class="k">def</span> <span class="nf">walk_packages</span><span class="p">(</span><span class="n">path</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">prefix</span><span class="o">=</span><span class="s">''</span><span class="p">,</span> <span class="n">onerror</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="sd">""" Implementation of walk_packages for python 2.5 """</span>
<span class="k">def</span> <span class="nf">seen</span><span class="p">(</span><span class="n">path</span><span class="p">,</span> <span class="n">seenpaths</span><span class="o">=</span><span class="p">{}):</span> <span class="c"># pylint: disable=W0102</span>
<span class="sd">""" detect if a path has been 'seen' (i.e., considered</span>
<span class="sd"> for inclusion in the generator). tracks what has been</span>
<span class="sd"> seen through the magic of python default arguments """</span>
<span class="k">if</span> <span class="n">path</span> <span class="ow">in</span> <span class="n">seenpaths</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">True</span>
<span class="n">seenpaths</span><span class="p">[</span><span class="n">path</span><span class="p">]</span> <span class="o">=</span> <span class="bp">True</span>
<span class="k">for</span> <span class="n">importer</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">ispkg</span> <span class="ow">in</span> <span class="n">iter_modules</span><span class="p">(</span><span class="n">path</span><span class="p">,</span> <span class="n">prefix</span><span class="p">):</span>
<span class="k">yield</span> <span class="n">importer</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">ispkg</span>
<span class="k">if</span> <span class="n">ispkg</span><span class="p">:</span>
<span class="k">try</span><span class="p">:</span>
<span class="nb">__import__</span><span class="p">(</span><span class="n">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">onerror</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span>
<span class="n">onerror</span><span class="p">(</span><span class="n">name</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">Exception</span><span class="p">:</span>
<span class="k">if</span> <span class="n">onerror</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span>
<span class="n">onerror</span><span class="p">(</span><span class="n">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="n">path</span> <span class="o">=</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">sys</span><span class="o">.</span><span class="n">modules</span><span class="p">[</span><span class="n">name</span><span class="p">],</span> <span class="s">'__path__'</span><span class="p">,</span> <span class="p">[])</span>
<span class="c"># don't traverse path items we've seen before</span>
<span class="n">path</span> <span class="o">=</span> <span class="p">[</span><span class="n">p</span> <span class="k">for</span> <span class="n">p</span> <span class="ow">in</span> <span class="n">path</span> <span class="k">if</span> <span class="ow">not</span> <span class="n">seen</span><span class="p">(</span><span class="n">p</span><span class="p">)]</span>
<span class="k">for</span> <span class="n">item</span> <span class="ow">in</span> <span class="n">walk_packages</span><span class="p">(</span><span class="n">path</span><span class="p">,</span> <span class="n">name</span> <span class="o">+</span> <span class="s">'.'</span><span class="p">,</span> <span class="n">onerror</span><span class="p">):</span>
<span class="k">yield</span> <span class="n">item</span>
<span class="k">except</span> <span class="ne">ImportError</span><span class="p">:</span>
<span class="kn">import</span> <span class="nn">os</span>
<span class="k">def</span> <span class="nf">walk_packages</span><span class="p">(</span><span class="n">path</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">prefix</span><span class="o">=</span><span class="s">''</span><span class="p">,</span> <span class="n">onerror</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="sd">""" Imperfect, incomplete implementation of</span>
<span class="sd"> :func:`pkgutil.walk_packages` for python 2.4. Differences:</span>
<span class="sd"> * Requires a full path, not a path relative to something</span>
<span class="sd"> in sys.path. Anywhere we care about that shouldn't be</span>
<span class="sd"> an issue.</span>
<span class="sd"> * The first element of each tuple is None instead of an</span>
<span class="sd"> importer object.</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="n">path</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="n">path</span> <span class="o">=</span> <span class="n">sys</span><span class="o">.</span><span class="n">path</span>
<span class="k">for</span> <span class="n">mpath</span> <span class="ow">in</span> <span class="n">path</span><span class="p">:</span>
<span class="k">for</span> <span class="n">fname</span> <span class="ow">in</span> <span class="n">os</span><span class="o">.</span><span class="n">listdir</span><span class="p">(</span><span class="n">mpath</span><span class="p">):</span>
<span class="n">fpath</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">mpath</span><span class="p">,</span> <span class="n">fname</span><span class="p">)</span>
<span class="k">if</span> <span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">isfile</span><span class="p">(</span><span class="n">fpath</span><span class="p">)</span> <span class="ow">and</span> <span class="n">fname</span><span class="o">.</span><span class="n">endswith</span><span class="p">(</span><span class="s">".py"</span><span class="p">)</span> <span class="ow">and</span>
<span class="n">fname</span> <span class="o">!=</span> <span class="s">'__init__.py'</span><span class="p">):</span>
<span class="k">yield</span> <span class="bp">None</span><span class="p">,</span> <span class="n">prefix</span> <span class="o">+</span> <span class="n">fname</span><span class="p">[:</span><span class="o">-</span><span class="mi">3</span><span class="p">],</span> <span class="bp">False</span>
<span class="k">elif</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">isdir</span><span class="p">(</span><span class="n">fpath</span><span class="p">):</span>
<span class="n">mname</span> <span class="o">=</span> <span class="n">prefix</span> <span class="o">+</span> <span class="n">fname</span>
<span class="k">if</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">exists</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">fpath</span><span class="p">,</span> <span class="s">"__init__.py"</span><span class="p">)):</span>
<span class="k">yield</span> <span class="bp">None</span><span class="p">,</span> <span class="n">mname</span><span class="p">,</span> <span class="bp">True</span>
<span class="k">try</span><span class="p">:</span>
<span class="nb">__import__</span><span class="p">(</span><span class="n">mname</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">onerror</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span>
<span class="n">onerror</span><span class="p">(</span><span class="n">mname</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">Exception</span><span class="p">:</span>
<span class="k">if</span> <span class="n">onerror</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span>
<span class="n">onerror</span><span class="p">(</span><span class="n">mname</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">for</span> <span class="n">item</span> <span class="ow">in</span> <span class="n">walk_packages</span><span class="p">([</span><span class="n">fpath</span><span class="p">],</span>
<span class="n">prefix</span><span class="o">=</span><span class="n">mname</span> <span class="o">+</span> <span class="s">'.'</span><span class="p">,</span>
<span class="n">onerror</span><span class="o">=</span><span class="n">onerror</span><span class="p">):</span>
<span class="k">yield</span> <span class="n">item</span>
<span class="k">try</span><span class="p">:</span>
<span class="nb">all</span> <span class="o">=</span> <span class="nb">all</span>
<span class="nb">any</span> <span class="o">=</span> <span class="nb">any</span>
<span class="k">except</span> <span class="ne">NameError</span><span class="p">:</span>
<span class="k">def</span> <span class="nf">all</span><span class="p">(</span><span class="n">iterable</span><span class="p">):</span>
<span class="sd">""" implementation of builtin all() for python 2.4 """</span>
<span class="k">for</span> <span class="n">element</span> <span class="ow">in</span> <span class="n">iterable</span><span class="p">:</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">element</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">False</span>
<span class="k">return</span> <span class="bp">True</span>
<span class="k">def</span> <span class="nf">any</span><span class="p">(</span><span class="n">iterable</span><span class="p">):</span>
<span class="sd">""" implementation of builtin any() for python 2.4 """</span>
<span class="k">for</span> <span class="n">element</span> <span class="ow">in</span> <span class="n">iterable</span><span class="p">:</span>
<span class="k">if</span> <span class="n">element</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">True</span>
<span class="k">return</span> <span class="bp">False</span>
<span class="k">try</span><span class="p">:</span>
<span class="kn">from</span> <span class="nn">hashlib</span> <span class="kn">import</span> <span class="n">md5</span>
<span class="k">except</span> <span class="ne">ImportError</span><span class="p">:</span>
<span class="kn">from</span> <span class="nn">md5</span> <span class="kn">import</span> <span class="n">md5</span>
<span class="k">try</span><span class="p">:</span>
<span class="kn">from</span> <span class="nn">functools</span> <span class="kn">import</span> <span class="n">wraps</span>
<span class="k">except</span> <span class="ne">ImportError</span><span class="p">:</span>
<span class="k">def</span> <span class="nf">wraps</span><span class="p">(</span><span class="n">wrapped</span><span class="p">):</span> <span class="c"># pylint: disable=W0613</span>
<span class="sd">""" implementation of functools.wraps() for python 2.4 """</span>
<span class="k">return</span> <span class="k">lambda</span> <span class="n">f</span><span class="p">:</span> <span class="n">f</span>
<div class="viewcode-block" id="oct_mode"><a class="viewcode-back" href="../../development/compat.html#Bcfg2.Compat.oct_mode">[docs]</a><span class="k">def</span> <span class="nf">oct_mode</span><span class="p">(</span><span class="n">mode</span><span class="p">):</span>
<span class="sd">""" Convert a decimal number describing a POSIX permissions mode</span>
<span class="sd"> to a string giving the octal mode. In Python 2, this is a synonym</span>
<span class="sd"> for :func:`oct`, but in Python 3 the octal format has changed to</span>
<span class="sd"> ``0o000``, which cannot be used as an octal permissions mode, so</span>
<span class="sd"> we need to strip the 'o' from the output. I.e., this function</span>
<span class="sd"> acts like the Python 2 :func:`oct` regardless of what version of</span>
<span class="sd"> Python is in use.</span>
<span class="sd"> :param mode: The decimal mode to convert to octal</span>
<span class="sd"> :type mode: int</span>
<span class="sd"> :returns: string """</span>
<span class="k">return</span> <span class="nb">oct</span><span class="p">(</span><span class="n">mode</span><span class="p">)</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s">'o'</span><span class="p">,</span> <span class="s">''</span><span class="p">)</span>
</div>
<span class="k">try</span><span class="p">:</span>
<span class="nb">long</span> <span class="o">=</span> <span class="nb">long</span>
<span class="k">except</span> <span class="ne">NameError</span><span class="p">:</span>
<span class="c"># longs are just ints in py3k</span>
<span class="nb">long</span> <span class="o">=</span> <span class="nb">int</span>
</pre></div>
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