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<div class="section" id="examples">
<span id="id1"></span><h1>Examples<a class="headerlink" href="#examples" title="Permalink to this headline">¶</a></h1>
<p>A detailed, albeit contrived, example of how to use PyXB is in
<a class="reference internal" href="userref_pyxbgen.html#pyxbgen"><span class="std std-ref">Generating Binding Classes</span></a>.</p>
<p>Multiple real-world XML and web service examples of varying complexity are
provided in the <code class="file docutils literal"><span class="pre">examples</span></code> subdirectories of the PyXB distribution and of the
various bundles. Some are WSDL services, and others are simply XMLSchema
documents. Often there are a couple trivial programs that show how the
bindings are used. The script <code class="file docutils literal"><span class="pre">test.sh</span></code> in each directory can be used
to generate the bindings and run the programs in a single step.</p>
<p>See the <code class="file docutils literal"><span class="pre">README.txt</span></code> file in each example subdirectory for more
information.</p>
<dl class="docutils">
<dt>For ...</dt>
<dd><ul class="first last simple">
<li>REST-style interactions, see <a class="reference internal" href="#ex-dictionary"><span class="std std-ref">Dictionary (Aonaware)</span></a>, <a class="reference internal" href="#ex-ndfd"><span class="std std-ref">Professional Weather (National Digital Forecast Data)</span></a>, and <a class="reference internal" href="index.html#thirty-sec-example"><span class="std std-ref">Thirty Second Example</span></a></li>
<li>SOAP interactions, see <a class="reference internal" href="#ex-weather"><span class="std std-ref">Simple Weather (CDyne)</span></a>, <a class="reference internal" href="#ex-ndfd"><span class="std std-ref">Professional Weather (National Digital Forecast Data)</span></a>, and <a class="reference internal" href="#ex-geocoder"><span class="std std-ref">Address-To-Latitude/Longitude (http://geocoder.us)</span></a></li>
<li>Customizing a generated binding, see <a class="reference internal" href="#ex-tmsxtvd"><span class="std std-ref">Television Schedules (Tribune Media Services)</span></a></li>
<li>Using a SAX parser, see <a class="reference internal" href="#ex-tmsxtvd"><span class="std std-ref">Television Schedules (Tribune Media Services)</span></a></li>
</ul>
</dd>
</dl>
<p>You may also want to look at some of the unit tests for other ideas.</p>
<div class="section" id="dictionary-aonaware">
<span id="ex-dictionary"></span><h2>Dictionary (Aonaware)<a class="headerlink" href="#dictionary-aonaware" title="Permalink to this headline">¶</a></h2>
<p>The <a class="reference external" href="http://www.aonaware.com/services.htm">Dictionary web service at Aonaware</a>.</p>
<p>The example <code class="file docutils literal"><span class="pre">define.py</span></code> looks up a word in all available dictionaries:</p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">__future__</span> <span class="k">import</span> <span class="n">print_function</span>
<span class="kn">import</span> <span class="nn">dict</span>
<span class="kn">from</span> <span class="nn">pyxb.utils.six.moves.urllib.request</span> <span class="k">import</span> <span class="n">urlopen</span>
<span class="kn">import</span> <span class="nn">sys</span>
<span class="kn">from</span> <span class="nn">pyxb.utils</span> <span class="k">import</span> <span class="n">domutils</span>
<span class="n">word</span> <span class="o">=</span> <span class="s1">'xml'</span>
<span class="k">if</span> <span class="mi">1</span> <span class="o"><</span> <span class="nb">len</span><span class="p">(</span><span class="n">sys</span><span class="o">.</span><span class="n">argv</span><span class="p">):</span>
<span class="n">word</span> <span class="o">=</span> <span class="n">sys</span><span class="o">.</span><span class="n">argv</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
<span class="c1"># Create a REST-style query to retrieve the information about this dictionary.</span>
<span class="n">uri</span> <span class="o">=</span> <span class="s1">'http://services.aonaware.com/DictService/DictService.asmx/Define?word=</span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="p">(</span><span class="n">word</span><span class="p">,)</span>
<span class="n">rxml</span> <span class="o">=</span> <span class="n">urlopen</span><span class="p">(</span><span class="n">uri</span><span class="p">)</span><span class="o">.</span><span class="n">read</span><span class="p">()</span>
<span class="n">resp</span> <span class="o">=</span> <span class="nb">dict</span><span class="o">.</span><span class="n">CreateFromDOM</span><span class="p">(</span><span class="n">domutils</span><span class="o">.</span><span class="n">StringToDOM</span><span class="p">(</span><span class="n">rxml</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="s1">'Definitions of </span><span class="si">%s</span><span class="s1">:'</span> <span class="o">%</span> <span class="p">(</span><span class="n">resp</span><span class="o">.</span><span class="n">Word</span><span class="p">,))</span>
<span class="k">for</span> <span class="n">definition</span> <span class="ow">in</span> <span class="n">resp</span><span class="o">.</span><span class="n">Definitions</span><span class="o">.</span><span class="n">Definition</span><span class="p">:</span>
<span class="nb">print</span><span class="p">(</span><span class="s1">'From </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="n">definition</span><span class="o">.</span><span class="n">Dictionary</span><span class="o">.</span><span class="n">Name</span><span class="p">,</span> <span class="n">definition</span><span class="o">.</span><span class="n">Dictionary</span><span class="o">.</span><span class="n">Id</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="n">definition</span><span class="o">.</span><span class="n">WordDefinition</span><span class="p">)</span>
<span class="nb">print</span><span class="p">()</span>
</pre></div>
</div>
<p>The example <code class="file docutils literal"><span class="pre">showdict.py</span></code> lists the available dictionaries:</p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="c1"># -*- coding: utf-8 -*-</span>
<span class="kn">from</span> <span class="nn">__future__</span> <span class="k">import</span> <span class="n">print_function</span>
<span class="kn">import</span> <span class="nn">sys</span>
<span class="kn">import</span> <span class="nn">dict</span>
<span class="kn">from</span> <span class="nn">pyxb.utils.six.moves.urllib.request</span> <span class="k">import</span> <span class="n">urlopen</span>
<span class="kn">import</span> <span class="nn">pyxb.utils.domutils</span> <span class="k">as</span> <span class="nn">domutils</span>
<span class="kn">from</span> <span class="nn">xml.dom</span> <span class="k">import</span> <span class="n">minidom</span>
<span class="c1"># Get the list of dictionaries available from the service.</span>
<span class="n">port_uri</span> <span class="o">=</span> <span class="s1">'http://services.aonaware.com/DictService/DictService.asmx'</span>
<span class="n">uri</span> <span class="o">=</span> <span class="n">port_uri</span> <span class="o">+</span> <span class="s1">'/DictionaryList'</span>
<span class="n">dle_xml</span> <span class="o">=</span> <span class="n">urlopen</span><span class="p">(</span><span class="n">uri</span><span class="p">)</span><span class="o">.</span><span class="n">read</span><span class="p">()</span>
<span class="n">dle_dom</span> <span class="o">=</span> <span class="n">domutils</span><span class="o">.</span><span class="n">StringToDOM</span><span class="p">(</span><span class="n">dle_xml</span><span class="p">)</span>
<span class="n">dle</span> <span class="o">=</span> <span class="nb">dict</span><span class="o">.</span><span class="n">ArrayOfDictionary</span><span class="o">.</span><span class="n">createFromDOM</span><span class="p">(</span><span class="n">dle_dom</span><span class="p">)</span>
<span class="n">op_path</span> <span class="o">=</span> <span class="s1">'/DictionaryInfo'</span>
<span class="k">for</span> <span class="n">d</span> <span class="ow">in</span> <span class="n">dle</span><span class="o">.</span><span class="n">Dictionary</span><span class="p">:</span>
<span class="c1"># Create a REST-style query to retrieve the information about this dictionary.</span>
<span class="n">uri</span> <span class="o">=</span> <span class="s1">'</span><span class="si">%s%s</span><span class="s1">?dictId=</span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="p">(</span><span class="n">port_uri</span><span class="p">,</span> <span class="n">op_path</span><span class="p">,</span> <span class="n">d</span><span class="o">.</span><span class="n">Id</span><span class="p">)</span>
<span class="n">resp</span> <span class="o">=</span> <span class="n">urlopen</span><span class="p">(</span><span class="n">uri</span><span class="p">)</span><span class="o">.</span><span class="n">read</span><span class="p">()</span>
<span class="nb">print</span><span class="p">(</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="si">%d</span><span class="s2"> chars"</span> <span class="o">%</span> <span class="p">(</span><span class="n">d</span><span class="o">.</span><span class="n">Name</span><span class="p">,</span> <span class="n">d</span><span class="o">.</span><span class="n">Id</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="n">resp</span><span class="p">)));</span>
<span class="c1"># The response is a simple type derived from string, so we can</span>
<span class="c1"># just extract and print it. Excluded by default since it has</span>
<span class="c1"># leading and trailing whitespace that causes problems with using</span>
<span class="c1"># git to store the expected output.</span>
<span class="n">di_resp</span> <span class="o">=</span> <span class="nb">dict</span><span class="o">.</span><span class="n">CreateFromDOM</span><span class="p">(</span><span class="n">domutils</span><span class="o">.</span><span class="n">StringToDOM</span><span class="p">(</span><span class="n">resp</span><span class="p">))</span>
<span class="k">if</span> <span class="n">sys</span><span class="o">.</span><span class="n">stdout</span><span class="o">.</span><span class="n">isatty</span><span class="p">():</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">"</span><span class="si">%s</span><span class="se">\n</span><span class="s2">"</span> <span class="o">%</span> <span class="n">di_resp</span><span class="p">);</span>
</pre></div>
</div>
<p>Sorry, no automatic generation of classes corresponding to the WSDL
operations. Next release, maybe.</p>
</div>
<div class="section" id="simple-weather-cdyne">
<span id="ex-weather"></span><h2>Simple Weather (CDyne)<a class="headerlink" href="#simple-weather-cdyne" title="Permalink to this headline">¶</a></h2>
<p>A <a class="reference external" href="http://ws.cdyne.com/WeatherWS/Weather.asmx">free weather service</a>.
The REST interface was demonstrated as the <a class="reference internal" href="index.html#thirty-sec-example"><span class="std std-ref">Thirty Second Example</span></a>. A
SOAP interface example is in <code class="docutils literal"><span class="pre">client.py</span></code>:</p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">__future__</span> <span class="k">import</span> <span class="n">print_function</span>
<span class="kn">import</span> <span class="nn">sys</span>
<span class="kn">import</span> <span class="nn">time</span>
<span class="kn">from</span> <span class="nn">pyxb.utils.six.moves.urllib</span> <span class="k">import</span> <span class="n">request</span> <span class="k">as</span> <span class="n">urllib_request</span>
<span class="kn">import</span> <span class="nn">pyxb.bundles.wssplat.soap11</span> <span class="k">as</span> <span class="nn">soapenv</span>
<span class="kn">import</span> <span class="nn">weather</span>
<span class="nb">zip</span> <span class="o">=</span> <span class="mi">55113</span>
<span class="k">if</span> <span class="mi">1</span> <span class="o"><</span> <span class="nb">len</span><span class="p">(</span><span class="n">sys</span><span class="o">.</span><span class="n">argv</span><span class="p">):</span>
<span class="nb">zip</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">sys</span><span class="o">.</span><span class="n">argv</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
<span class="c1"># Create an envelope, and give it a body that is the request for the</span>
<span class="c1"># service we want.</span>
<span class="n">env</span> <span class="o">=</span> <span class="n">soapenv</span><span class="o">.</span><span class="n">Envelope</span><span class="p">(</span><span class="n">soapenv</span><span class="o">.</span><span class="n">Body</span><span class="p">(</span><span class="n">weather</span><span class="o">.</span><span class="n">GetCityForecastByZIP</span><span class="p">(</span><span class="n">ZIP</span><span class="o">=</span><span class="nb">str</span><span class="p">(</span><span class="nb">zip</span><span class="p">))))</span>
<span class="nb">open</span><span class="p">(</span><span class="s1">'request.xml'</span><span class="p">,</span> <span class="s1">'w'</span><span class="p">)</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">env</span><span class="o">.</span><span class="n">toxml</span><span class="p">(</span><span class="s2">"utf-8"</span><span class="p">))</span>
<span class="c1"># Invoke the service</span>
<span class="n">uri</span> <span class="o">=</span> <span class="n">urllib_request</span><span class="o">.</span><span class="n">Request</span><span class="p">(</span><span class="s1">'http://wsf.cdyne.com/WeatherWS/Weather.asmx'</span><span class="p">,</span>
<span class="n">env</span><span class="o">.</span><span class="n">toxml</span><span class="p">(</span><span class="s2">"utf-8"</span><span class="p">),</span>
<span class="p">{</span> <span class="s1">'SOAPAction'</span> <span class="p">:</span> <span class="s2">"http://ws.cdyne.com/WeatherWS/GetCityForecastByZIP"</span><span class="p">,</span> <span class="s1">'Content-Type'</span><span class="p">:</span> <span class="s1">'text/xml'</span> <span class="p">}</span> <span class="p">)</span>
<span class="n">rxml</span> <span class="o">=</span> <span class="n">urllib_request</span><span class="o">.</span><span class="n">urlopen</span><span class="p">(</span><span class="n">uri</span><span class="p">)</span><span class="o">.</span><span class="n">read</span><span class="p">()</span>
<span class="nb">open</span><span class="p">(</span><span class="s1">'response.xml'</span><span class="p">,</span> <span class="s1">'w'</span><span class="p">)</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">rxml</span><span class="p">)</span>
<span class="c1"># Convert the response to a SOAP envelope, then extract the actual</span>
<span class="c1"># response from the wildcard elements of the body. Note that because</span>
<span class="c1"># the weather namespace was registered, PyXB already created the</span>
<span class="c1"># binding for the response.</span>
<span class="n">soap_resp</span> <span class="o">=</span> <span class="n">soapenv</span><span class="o">.</span><span class="n">CreateFromDocument</span><span class="p">(</span><span class="n">rxml</span><span class="p">)</span>
<span class="n">resp</span> <span class="o">=</span> <span class="n">soap_resp</span><span class="o">.</span><span class="n">Body</span><span class="o">.</span><span class="n">wildcardElements</span><span class="p">()[</span><span class="mi">0</span><span class="p">]</span>
<span class="n">fc_return</span> <span class="o">=</span> <span class="n">resp</span><span class="o">.</span><span class="n">GetCityForecastByZIPResult</span>
<span class="k">if</span> <span class="n">fc_return</span><span class="o">.</span><span class="n">Success</span><span class="p">:</span>
<span class="nb">print</span><span class="p">(</span><span class="s1">'Got response for </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="n">fc_return</span><span class="o">.</span><span class="n">City</span><span class="p">,</span> <span class="n">fc_return</span><span class="o">.</span><span class="n">State</span><span class="p">))</span>
<span class="k">for</span> <span class="n">fc</span> <span class="ow">in</span> <span class="n">fc_return</span><span class="o">.</span><span class="n">ForecastResult</span><span class="o">.</span><span class="n">Forecast</span><span class="p">:</span>
<span class="n">when</span> <span class="o">=</span> <span class="n">time</span><span class="o">.</span><span class="n">strftime</span><span class="p">(</span><span class="s1">'%A, %B </span><span class="si">%d</span><span class="s1"> %Y'</span><span class="p">,</span> <span class="n">fc</span><span class="o">.</span><span class="n">Date</span><span class="o">.</span><span class="n">timetuple</span><span class="p">())</span>
<span class="n">outlook</span> <span class="o">=</span> <span class="n">fc</span><span class="o">.</span><span class="n">Desciption</span> <span class="c1"># typos in WSDL left unchanged</span>
<span class="n">low</span> <span class="o">=</span> <span class="n">fc</span><span class="o">.</span><span class="n">Temperatures</span><span class="o">.</span><span class="n">MorningLow</span>
<span class="n">high</span> <span class="o">=</span> <span class="n">fc</span><span class="o">.</span><span class="n">Temperatures</span><span class="o">.</span><span class="n">DaytimeHigh</span>
<span class="nb">print</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">, from </span><span class="si">%s</span><span class="s1"> to </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="p">(</span><span class="n">when</span><span class="p">,</span> <span class="n">outlook</span><span class="p">,</span> <span class="n">low</span><span class="p">,</span> <span class="n">high</span><span class="p">))</span>
</pre></div>
</div>
<p>Note the various misspellings in the schema (e.g., “Desciption”). Also, be
aware that the weather information in this service does not get updated
often, and sometimes fails to provide valid dates. Try various zip codes;
usually you can find one that works.</p>
</div>
<div class="section" id="professional-weather-national-digital-forecast-data">
<span id="ex-ndfd"></span><h2>Professional Weather (National Digital Forecast Data)<a class="headerlink" href="#professional-weather-national-digital-forecast-data" title="Permalink to this headline">¶</a></h2>
<p>Interact with the <a class="reference external" href="http://www.nws.noaa.gov/xml">National Digital Forecast Database</a>.</p>
<p>Use the <code class="file docutils literal"><span class="pre">genbindings.sh</span></code> script to retrieve the schema for Digital
Weather Markup Language and generate the bindings. Note that the schema has
two levels of <code class="docutils literal"><span class="pre">include</span></code> directives, which PyXB follows.</p>
<p>The examples for this service are too long to include into the web
documentation. <code class="file docutils literal"><span class="pre">forecast.py</span></code> uses the REST interface to get the
forecast temperature data for two locations, and print it in several ways.
<code class="file docutils literal"><span class="pre">latlon.py</span></code> does something similar but for a latitude/longitude pair,
using SOAP, and requesting more data.</p>
</div>
<div class="section" id="television-schedules-tribune-media-services">
<span id="ex-tmsxtvd"></span><h2>Television Schedules (Tribune Media Services)<a class="headerlink" href="#television-schedules-tribune-media-services" title="Permalink to this headline">¶</a></h2>
<p>A commercial service for <a class="reference external" href="http://www.tribunemediaservices.com/product-and-services/television/services/">television listings</a>.
Only one sample document is available for testing; it is retrieved using
<code class="file docutils literal"><span class="pre">genbindings.sh</span></code>. The <code class="file docutils literal"><span class="pre">dumpsample.py</span></code> demonstrates extending a
binding to add a custom method, and parsing content with both DOM and SAX.
It also provides timing information; the document is about 200KB, and takes
several seconds to parse.</p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">__future__</span> <span class="k">import</span> <span class="n">print_function</span>
<span class="kn">import</span> <span class="nn">io</span>
<span class="kn">import</span> <span class="nn">time</span>
<span class="kn">import</span> <span class="nn">xml.dom.minidom</span>
<span class="kn">import</span> <span class="nn">pyxb.utils.saxdom</span>
<span class="kn">import</span> <span class="nn">pyxb.binding.saxer</span>
<span class="kn">import</span> <span class="nn">tmstvd</span>
<span class="c1">#import cProfile</span>
<span class="c1"># Extend the anonymous class used by the xtvd element to add a method</span>
<span class="c1"># we can use to test equality of two instances. Normally, you'd just</span>
<span class="c1"># refer to the complex type binding class itself, but we don't know</span>
<span class="c1"># what PyXB named it.</span>
<span class="k">class</span> <span class="nc">my_xtvd</span> <span class="p">(</span><span class="n">tmstvd</span><span class="o">.</span><span class="n">xtvd</span><span class="o">.</span><span class="n">typeDefinition</span><span class="p">()):</span>
<span class="k">def</span> <span class="nf">equal</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="n">verbose</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">stations</span><span class="o">.</span><span class="n">station</span><span class="p">)</span> <span class="o">!=</span> <span class="nb">len</span><span class="p">(</span><span class="n">other</span><span class="o">.</span><span class="n">stations</span><span class="o">.</span><span class="n">station</span><span class="p">):</span>
<span class="k">return</span> <span class="kc">False</span>
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">stations</span><span class="o">.</span><span class="n">station</span><span class="p">)):</span>
<span class="n">s</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">stations</span><span class="o">.</span><span class="n">station</span><span class="p">[</span><span class="n">i</span><span class="p">]</span>
<span class="n">o</span> <span class="o">=</span> <span class="n">other</span><span class="o">.</span><span class="n">stations</span><span class="o">.</span><span class="n">station</span><span class="p">[</span><span class="n">i</span><span class="p">]</span>
<span class="k">if</span> <span class="p">(</span><span class="n">s</span><span class="o">.</span><span class="n">callSign</span> <span class="o">!=</span> <span class="n">o</span><span class="o">.</span><span class="n">callSign</span><span class="p">)</span> <span class="ow">or</span> <span class="p">(</span><span class="n">s</span><span class="o">.</span><span class="n">name</span> <span class="o">!=</span> <span class="n">o</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> <span class="ow">or</span> <span class="p">(</span><span class="n">s</span><span class="o">.</span><span class="n">id</span> <span class="o">!=</span> <span class="n">o</span><span class="o">.</span><span class="n">id</span><span class="p">):</span>
<span class="k">return</span> <span class="kc">False</span>
<span class="k">if</span> <span class="n">verbose</span><span class="p">:</span>
<span class="nb">print</span><span class="p">(</span><span class="s1">'Match station </span><span class="si">%s</span><span class="s1"> is </span><span class="si">%s</span><span class="s1">, id </span><span class="si">%d</span><span class="s1">'</span> <span class="o">%</span> <span class="p">(</span><span class="n">s</span><span class="o">.</span><span class="n">callSign</span><span class="p">,</span> <span class="n">s</span><span class="o">.</span><span class="n">name</span><span class="p">,</span> <span class="n">s</span><span class="o">.</span><span class="n">id</span><span class="p">))</span>
<span class="k">return</span> <span class="kc">True</span>
<span class="n">tmstvd</span><span class="o">.</span><span class="n">xtvd</span><span class="o">.</span><span class="n">typeDefinition</span><span class="p">()</span><span class="o">.</span><span class="n">_SetSupersedingClass</span><span class="p">(</span><span class="n">my_xtvd</span><span class="p">)</span>
<span class="c1"># The sample document.</span>
<span class="n">xml_file</span> <span class="o">=</span> <span class="s1">'tmsdatadirect_sample.xml'</span>
<span class="nb">print</span><span class="p">(</span><span class="s1">'Generating binding from </span><span class="si">%s</span><span class="s1"> with minidom'</span> <span class="o">%</span> <span class="p">(</span><span class="n">xml_file</span><span class="p">,))</span>
<span class="n">mt1</span> <span class="o">=</span> <span class="n">time</span><span class="o">.</span><span class="n">time</span><span class="p">()</span>
<span class="n">xmld</span> <span class="o">=</span> <span class="nb">open</span><span class="p">(</span><span class="n">xml_file</span><span class="p">,</span> <span class="s1">'rb'</span><span class="p">)</span><span class="o">.</span><span class="n">read</span><span class="p">()</span>
<span class="n">mt2</span> <span class="o">=</span> <span class="n">time</span><span class="o">.</span><span class="n">time</span><span class="p">()</span>
<span class="n">dom</span> <span class="o">=</span> <span class="n">xml</span><span class="o">.</span><span class="n">dom</span><span class="o">.</span><span class="n">minidom</span><span class="o">.</span><span class="n">parse</span><span class="p">(</span><span class="n">io</span><span class="o">.</span><span class="n">BytesIO</span><span class="p">(</span><span class="n">xmld</span><span class="p">))</span>
<span class="n">mt3</span> <span class="o">=</span> <span class="n">time</span><span class="o">.</span><span class="n">time</span><span class="p">()</span>
<span class="c1">#cProfile.run('tmstvd.CreateFromDOM(dom.documentElement)', 'dom.prf')</span>
<span class="n">dom_instance</span> <span class="o">=</span> <span class="n">tmstvd</span><span class="o">.</span><span class="n">CreateFromDOM</span><span class="p">(</span><span class="n">dom</span><span class="o">.</span><span class="n">documentElement</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="s1">'minidom first callSign at </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span><span class="p">(</span><span class="n">dom_instance</span><span class="o">.</span><span class="n">stations</span><span class="o">.</span><span class="n">station</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">callSign</span><span class="o">.</span><span class="n">_location</span><span class="p">(),))</span>
<span class="n">mt4</span> <span class="o">=</span> <span class="n">time</span><span class="o">.</span><span class="n">time</span><span class="p">()</span>
<span class="nb">print</span><span class="p">(</span><span class="s1">'Generating binding from </span><span class="si">%s</span><span class="s1"> with SAXDOM'</span> <span class="o">%</span> <span class="p">(</span><span class="n">xml_file</span><span class="p">,))</span>
<span class="n">dt1</span> <span class="o">=</span> <span class="n">time</span><span class="o">.</span><span class="n">time</span><span class="p">()</span>
<span class="n">dom</span> <span class="o">=</span> <span class="n">pyxb</span><span class="o">.</span><span class="n">utils</span><span class="o">.</span><span class="n">saxdom</span><span class="o">.</span><span class="n">parse</span><span class="p">(</span><span class="n">io</span><span class="o">.</span><span class="n">BytesIO</span><span class="p">(</span><span class="n">xmld</span><span class="p">),</span> <span class="n">location_base</span><span class="o">=</span><span class="n">xml_file</span><span class="p">)</span>
<span class="n">dt2</span> <span class="o">=</span> <span class="n">time</span><span class="o">.</span><span class="n">time</span><span class="p">()</span>
<span class="c1">#cProfile.run('tmstvd.CreateFromDOM(dom.documentElement)', 'saxdom.prf')</span>
<span class="n">saxdom_instance</span> <span class="o">=</span> <span class="n">tmstvd</span><span class="o">.</span><span class="n">CreateFromDOM</span><span class="p">(</span><span class="n">dom</span><span class="o">.</span><span class="n">documentElement</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="s1">'SAXDOM first callSign at </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="p">(</span><span class="n">saxdom_instance</span><span class="o">.</span><span class="n">stations</span><span class="o">.</span><span class="n">station</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">callSign</span><span class="o">.</span><span class="n">_location</span><span class="p">(),))</span>
<span class="n">dt3</span> <span class="o">=</span> <span class="n">time</span><span class="o">.</span><span class="n">time</span><span class="p">()</span>
<span class="nb">print</span><span class="p">(</span><span class="s1">'Generating binding from </span><span class="si">%s</span><span class="s1"> with SAX'</span> <span class="o">%</span> <span class="p">(</span><span class="n">xml_file</span><span class="p">,))</span>
<span class="n">st1</span> <span class="o">=</span> <span class="n">time</span><span class="o">.</span><span class="n">time</span><span class="p">()</span>
<span class="n">saxer</span> <span class="o">=</span> <span class="n">pyxb</span><span class="o">.</span><span class="n">binding</span><span class="o">.</span><span class="n">saxer</span><span class="o">.</span><span class="n">make_parser</span><span class="p">(</span><span class="n">location_base</span><span class="o">=</span><span class="n">xml_file</span><span class="p">)</span>
<span class="n">handler</span> <span class="o">=</span> <span class="n">saxer</span><span class="o">.</span><span class="n">getContentHandler</span><span class="p">()</span>
<span class="n">st2</span> <span class="o">=</span> <span class="n">time</span><span class="o">.</span><span class="n">time</span><span class="p">()</span>
<span class="n">saxer</span><span class="o">.</span><span class="n">parse</span><span class="p">(</span><span class="n">io</span><span class="o">.</span><span class="n">BytesIO</span><span class="p">(</span><span class="n">xmld</span><span class="p">))</span>
<span class="c1">#cProfile.run('saxer.parse(open(xml_file))', 'sax.prf')</span>
<span class="n">st3</span> <span class="o">=</span> <span class="n">time</span><span class="o">.</span><span class="n">time</span><span class="p">()</span>
<span class="n">sax_instance</span> <span class="o">=</span> <span class="n">handler</span><span class="o">.</span><span class="n">rootObject</span><span class="p">()</span>
<span class="nb">print</span><span class="p">(</span><span class="s1">'SAXER first callSign at </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="p">(</span><span class="n">sax_instance</span><span class="o">.</span><span class="n">stations</span><span class="o">.</span><span class="n">station</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">callSign</span><span class="o">.</span><span class="n">_location</span><span class="p">(),))</span>
<span class="nb">print</span><span class="p">(</span><span class="s1">'DOM-based read </span><span class="si">%f</span><span class="s1">, parse </span><span class="si">%f</span><span class="s1">, bind </span><span class="si">%f</span><span class="s1">, total </span><span class="si">%f</span><span class="s1">'</span> <span class="o">%</span> <span class="p">(</span><span class="n">mt2</span><span class="o">-</span><span class="n">mt1</span><span class="p">,</span> <span class="n">mt3</span><span class="o">-</span><span class="n">mt2</span><span class="p">,</span> <span class="n">mt4</span><span class="o">-</span><span class="n">mt3</span><span class="p">,</span> <span class="n">mt4</span><span class="o">-</span><span class="n">mt2</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="s1">'SAXDOM-based parse </span><span class="si">%f</span><span class="s1">, bind </span><span class="si">%f</span><span class="s1">, total </span><span class="si">%f</span><span class="s1">'</span> <span class="o">%</span> <span class="p">(</span><span class="n">dt2</span><span class="o">-</span><span class="n">dt1</span><span class="p">,</span> <span class="n">dt3</span><span class="o">-</span><span class="n">dt2</span><span class="p">,</span> <span class="n">dt3</span><span class="o">-</span><span class="n">dt1</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="s1">'SAX-based read </span><span class="si">%f</span><span class="s1">, parse and bind </span><span class="si">%f</span><span class="s1">, total </span><span class="si">%f</span><span class="s1">'</span> <span class="o">%</span> <span class="p">(</span><span class="n">st2</span><span class="o">-</span><span class="n">st1</span><span class="p">,</span> <span class="n">st3</span><span class="o">-</span><span class="n">st2</span><span class="p">,</span> <span class="n">st3</span><span class="o">-</span><span class="n">st1</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">"Equality test on DOM vs SAX: </span><span class="si">%s</span><span class="s2">"</span> <span class="o">%</span> <span class="p">(</span><span class="n">dom_instance</span><span class="o">.</span><span class="n">equal</span><span class="p">(</span><span class="n">sax_instance</span><span class="p">),))</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">"Equality test on SAXDOM vs SAX: </span><span class="si">%s</span><span class="s2">"</span> <span class="o">%</span> <span class="p">(</span><span class="n">saxdom_instance</span><span class="o">.</span><span class="n">equal</span><span class="p">(</span><span class="n">sax_instance</span><span class="p">,</span> <span class="n">verbose</span><span class="o">=</span><span class="kc">True</span><span class="p">),))</span>
</pre></div>
</div>
</div>
<div class="section" id="address-to-latitude-longitude-http-geocoder-us">
<span id="ex-geocoder"></span><h2>Address-To-Latitude/Longitude (<a class="reference external" href="http://geocoder.us">http://geocoder.us</a>)<a class="headerlink" href="#address-to-latitude-longitude-http-geocoder-us" title="Permalink to this headline">¶</a></h2>
<p>This service provides the latitude and longitude for free-form US addresses.
It also demonstrates several of the pitfalls of using WSDL, which has a very
lax concept of schemas, with a system that expects to operate on validatable
documents. The following changes were made to make the service easier to
work with:</p>
<blockquote>
<div><ul class="simple">
<li>Change the element form default to <code class="docutils literal"><span class="pre">qualified</span></code>. This is necessary
because there is a non-absent target namespace in the schema, and the
documents returned from the service set it as the default namespace.
This causes the XML engine to associate that namespace with
locally-scoped elements like “number”, while the original <code class="docutils literal"><span class="pre">unqualified</span></code>
form default caused the schema to record them with no namespace.</li>
<li>Set <code class="docutils literal"><span class="pre">minOccurs</span></code> on all the elements, since some are missing from some
responses</li>
<li>Set <code class="docutils literal"><span class="pre">nillable</span></code> on all elements that are observed to use <code class="docutils literal"><span class="pre">xsi:nil="true"</span></code> in
response documents</li>
<li>Provide types and elements corresponding to the request and response
messages, since PyXB’s WSDL support does not currently generate them from
the operation messages.</li>
</ul>
</div></blockquote>
<p><code class="file docutils literal"><span class="pre">genbindings.sh</span></code> applies changes to the WSDL after retrieving it and
prior to generating the bindings.</p>
<p>A second complication is the need to burrow down through wildcard elements
in the binding instance generated from the SOAP response. This is the
consequence of an <a class="reference external" href="http://tech.groups.yahoo.com/group/soapbuilders/message/5879">error in the WSDL specification</a>, which was
discovered after too many tools had already worked around it. Currently,
PyXB also requires that you work around it manually, although a
customization of the relevant SOAP encoding class could make it unnecessary.</p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">__future__</span> <span class="k">import</span> <span class="n">print_function</span>
<span class="kn">import</span> <span class="nn">sys</span>
<span class="kn">from</span> <span class="nn">pyxb.utils.six.moves.urllib</span> <span class="k">import</span> <span class="n">request</span> <span class="k">as</span> <span class="n">urllib_request</span>
<span class="kn">import</span> <span class="nn">GeoCoder</span>
<span class="kn">from</span> <span class="nn">pyxb</span> <span class="k">import</span> <span class="n">BIND</span>
<span class="kn">from</span> <span class="nn">pyxb.utils</span> <span class="k">import</span> <span class="n">domutils</span>
<span class="kn">import</span> <span class="nn">pyxb.bundles.wssplat.soap11</span> <span class="k">as</span> <span class="nn">soapenv</span>
<span class="kn">import</span> <span class="nn">pyxb.bundles.wssplat.soapenc</span> <span class="k">as</span> <span class="nn">soapenc</span>
<span class="n">address</span> <span class="o">=</span> <span class="s1">'1600 Pennsylvania Ave., Washington, DC'</span>
<span class="k">if</span> <span class="mi">1</span> <span class="o"><</span> <span class="nb">len</span><span class="p">(</span><span class="n">sys</span><span class="o">.</span><span class="n">argv</span><span class="p">):</span>
<span class="n">address</span> <span class="o">=</span> <span class="n">sys</span><span class="o">.</span><span class="n">argv</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
<span class="n">env</span> <span class="o">=</span> <span class="n">soapenv</span><span class="o">.</span><span class="n">Envelope</span><span class="p">(</span><span class="n">Body</span><span class="o">=</span><span class="n">BIND</span><span class="p">(</span><span class="n">GeoCoder</span><span class="o">.</span><span class="n">geocode</span><span class="p">(</span><span class="n">address</span><span class="p">)))</span>
<span class="n">uri</span> <span class="o">=</span> <span class="n">urllib_request</span><span class="o">.</span><span class="n">Request</span><span class="p">(</span><span class="s1">'http://rpc.geocoder.us/service/soap/'</span><span class="p">,</span>
<span class="n">env</span><span class="o">.</span><span class="n">toxml</span><span class="p">(</span><span class="s2">"utf-8"</span><span class="p">),</span>
<span class="p">{</span> <span class="s1">'SOAPAction'</span> <span class="p">:</span> <span class="s2">"http://rpc.geocoder.us/Geo/Coder/US#geocode"</span><span class="p">,</span> <span class="s1">'Content-Type'</span><span class="p">:</span> <span class="s1">'text/xml'</span> <span class="p">}</span> <span class="p">)</span>
<span class="n">rxml</span> <span class="o">=</span> <span class="n">urllib_request</span><span class="o">.</span><span class="n">urlopen</span><span class="p">(</span><span class="n">uri</span><span class="p">)</span><span class="o">.</span><span class="n">read</span><span class="p">()</span>
<span class="c1">#open('response.xml', 'w').write(rxml)</span>
<span class="c1">#rxml = open('response.xml').read()</span>
<span class="n">response</span> <span class="o">=</span> <span class="n">soapenv</span><span class="o">.</span><span class="n">CreateFromDocument</span><span class="p">(</span><span class="n">rxml</span><span class="p">)</span>
<span class="c1"># OK, here we get into ugliness due to WSDL's concept of schema in the</span>
<span class="c1"># SOAP encoding not being consistent with XML Schema, even though it</span>
<span class="c1"># uses the same namespace. See</span>
<span class="c1"># http://tech.groups.yahoo.com/group/soapbuilders/message/5879. In</span>
<span class="c1"># short, the WSDL spec shows an example using soapenc:Array where a</span>
<span class="c1"># restriction was used to set the value of the wsdl:arrayType</span>
<span class="c1"># attribute. This restriction failed to duplicate the element content</span>
<span class="c1"># of the base type, resulting in a content type of empty in the</span>
<span class="c1"># restricted type. Consequently, PyXB can't get the information out</span>
<span class="c1"># of the DOM node, and we have to skip over the wildcard items to find</span>
<span class="c1"># something we can deal with.</span>
<span class="c1"># As further evidence the folks who designed SOAP 1.1 didn't know what</span>
<span class="c1"># they were doing, the encodingStyle attribute that's supposed to go</span>
<span class="c1"># in the Envelope can't validly be present there, since it's not</span>
<span class="c1"># listed and it's not in the namespace admitted by the attribute</span>
<span class="c1"># wildcard. Fortunately, PyXB doesn't currently validate wildcards.</span>
<span class="n">encoding_style</span> <span class="o">=</span> <span class="n">response</span><span class="o">.</span><span class="n">wildcardAttributeMap</span><span class="p">()</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">soapenv</span><span class="o">.</span><span class="n">Namespace</span><span class="o">.</span><span class="n">createExpandedName</span><span class="p">(</span><span class="s1">'encodingStyle'</span><span class="p">))</span>
<span class="n">items</span> <span class="o">=</span> <span class="p">[]</span>
<span class="k">if</span> <span class="n">encoding_style</span> <span class="o">==</span> <span class="n">soapenc</span><span class="o">.</span><span class="n">Namespace</span><span class="o">.</span><span class="n">uri</span><span class="p">():</span>
<span class="n">gcr</span> <span class="o">=</span> <span class="n">response</span><span class="o">.</span><span class="n">Body</span><span class="o">.</span><span class="n">wildcardElements</span><span class="p">()[</span><span class="mi">0</span><span class="p">]</span>
<span class="n">soap_array</span> <span class="o">=</span> <span class="n">gcr</span><span class="o">.</span><span class="n">wildcardElements</span><span class="p">()[</span><span class="mi">0</span><span class="p">]</span>
<span class="n">items</span> <span class="o">=</span> <span class="n">soap_array</span><span class="o">.</span><span class="n">wildcardElements</span><span class="p">()</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">pass</span>
<span class="k">for</span> <span class="n">item</span> <span class="ow">in</span> <span class="n">items</span><span class="p">:</span>
<span class="k">if</span> <span class="p">(</span><span class="n">item</span><span class="o">.</span><span class="n">lat</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">)</span> <span class="ow">or</span> <span class="n">item</span><span class="o">.</span><span class="n">lat</span><span class="o">.</span><span class="n">_isNil</span><span class="p">():</span>
<span class="nb">print</span><span class="p">(</span><span class="s1">'Warning: Address did not resolve'</span><span class="p">)</span>
<span class="nb">print</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="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="o">%</span> <span class="p">(</span><span class="n">item</span><span class="o">.</span><span class="n">number</span><span class="p">,</span> <span class="n">item</span><span class="o">.</span><span class="n">prefix</span><span class="p">,</span> <span class="n">item</span><span class="o">.</span><span class="n">street</span><span class="p">,</span> <span class="n">item</span><span class="o">.</span><span class="n">type</span><span class="p">,</span> <span class="n">item</span><span class="o">.</span><span class="n">suffix</span><span class="p">,</span>
<span class="n">item</span><span class="o">.</span><span class="n">city</span><span class="p">,</span> <span class="n">item</span><span class="o">.</span><span class="n">state</span><span class="p">,</span> <span class="n">item</span><span class="o">.</span><span class="n">zip</span><span class="p">,</span>
<span class="n">item</span><span class="o">.</span><span class="n">lat</span><span class="p">,</span> <span class="n">item</span><span class="o">.</span><span class="n">long</span><span class="p">))</span>
</pre></div>
</div>
</div>
<div class="section" id="opengis-http-www-opengeospatial-org">
<span id="ex-opengis"></span><h2>OpenGIS (<a class="reference external" href="http://www.opengeospatial.org">http://www.opengeospatial.org</a>)<a class="headerlink" href="#opengis-http-www-opengeospatial-org" title="Permalink to this headline">¶</a></h2>
<p>See the directory <code class="docutils literal"><span class="pre">examples/OpenGIS</span></code> in the distribution.</p>
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<li><a class="reference internal" href="#">Examples</a><ul>
<li><a class="reference internal" href="#dictionary-aonaware">Dictionary (Aonaware)</a></li>
<li><a class="reference internal" href="#simple-weather-cdyne">Simple Weather (CDyne)</a></li>
<li><a class="reference internal" href="#professional-weather-national-digital-forecast-data">Professional Weather (National Digital Forecast Data)</a></li>
<li><a class="reference internal" href="#television-schedules-tribune-media-services">Television Schedules (Tribune Media Services)</a></li>
<li><a class="reference internal" href="#address-to-latitude-longitude-http-geocoder-us">Address-To-Latitude/Longitude (http://geocoder.us)</a></li>
<li><a class="reference internal" href="#opengis-http-www-opengeospatial-org">OpenGIS (http://www.opengeospatial.org)</a></li>
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