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hakril 3565474693 Let's call it a 0.4 !
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<h1>Source code for windows.winobject.wmi</h1><div class="highlight"><pre>
<span></span><span class="kn">import</span> <span class="nn">windows</span>
<span class="kn">import</span> <span class="nn">ctypes</span>
<span class="kn">import</span> <span class="nn">struct</span>
<span class="kn">import</span> <span class="nn">functools</span>
<span class="kn">from</span> <span class="nn">ctypes.wintypes</span> <span class="k">import</span> <span class="o">*</span>
<span class="kn">import</span> <span class="nn">windows.com</span>
<span class="kn">from</span> <span class="nn">windows.generated_def.winstructs</span> <span class="k">import</span> <span class="o">*</span>
<span class="kn">from</span> <span class="nn">windows.generated_def.interfaces</span> <span class="k">import</span> <span class="n">IWbemLocator</span><span class="p">,</span> <span class="n">IWbemServices</span><span class="p">,</span> <span class="n">IEnumWbemClassObject</span><span class="p">,</span> <span class="n">IWbemClassObject</span>
<span class="c1"># import windows.generated_def as gdef</span>
<div class="viewcode-block" id="WmiRequester"><a class="viewcode-back" href="../../../wmi.html#windows.winobject.wmi.WmiRequester">[docs]</a><span class="k">class</span> <span class="nc">WmiRequester</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span>
<span class="sa">r</span><span class="sd">&quot;&quot;&quot;An object to perform wmi request to ``root\cimv2``&quot;&quot;&quot;</span>
<span class="n">INSTANCE</span> <span class="o">=</span> <span class="kc">None</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">target</span><span class="o">=</span><span class="s2">&quot;root</span><span class="se">\\</span><span class="s2">cimv2&quot;</span><span class="p">,</span> <span class="n">user</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">password</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">namespace</span> <span class="o">=</span> <span class="n">target</span>
<span class="n">locator</span> <span class="o">=</span> <span class="n">IWbemLocator</span><span class="p">()</span>
<span class="n">service</span> <span class="o">=</span> <span class="n">IWbemServices</span><span class="p">()</span>
<span class="c1">#CLSID_WbemAdministrativeLocator_IID = windows.com.IID.from_string(&#39;CB8555CC-9128-11D1-AD9B-00C04FD8FDFF&#39;)</span>
<span class="n">WbemLocator_CLSID</span> <span class="o">=</span> <span class="n">windows</span><span class="o">.</span><span class="n">com</span><span class="o">.</span><span class="n">IID</span><span class="o">.</span><span class="n">from_string</span><span class="p">(</span><span class="s1">&#39;4590F811-1D3A-11D0-891F-00AA004B2E24&#39;</span><span class="p">)</span>
<span class="n">windows</span><span class="o">.</span><span class="n">com</span><span class="o">.</span><span class="n">init</span><span class="p">()</span>
<span class="n">windows</span><span class="o">.</span><span class="n">com</span><span class="o">.</span><span class="n">create_instance</span><span class="p">(</span><span class="n">WbemLocator_CLSID</span><span class="p">,</span> <span class="n">locator</span><span class="p">)</span>
<span class="c1"># WBEM_FLAG_CONNECT_USE_MAX_WAIT</span>
<span class="n">locator</span><span class="o">.</span><span class="n">ConnectServer</span><span class="p">(</span><span class="n">target</span><span class="p">,</span> <span class="n">user</span><span class="p">,</span> <span class="n">password</span> <span class="p">,</span> <span class="kc">None</span><span class="p">,</span> <span class="mh">0x80</span><span class="p">,</span> <span class="kc">None</span><span class="p">,</span> <span class="kc">None</span><span class="p">,</span> <span class="n">ctypes</span><span class="o">.</span><span class="n">byref</span><span class="p">(</span><span class="n">service</span><span class="p">))</span>
<span class="bp">self</span><span class="o">.</span><span class="n">service</span> <span class="o">=</span> <span class="n">service</span>
<div class="viewcode-block" id="WmiRequester.select"><a class="viewcode-back" href="../../../wmi.html#windows.winobject.wmi.WmiRequester.select">[docs]</a> <span class="k">def</span> <span class="nf">select</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">frm</span><span class="p">,</span> <span class="n">attrs</span><span class="o">=</span><span class="s2">&quot;*&quot;</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Select ``attrs`` from ``frm``</span>
<span class="sd"> :rtype: list of dict</span>
<span class="sd"> &quot;&quot;&quot;</span></div>
<span class="k">return</span> <span class="nb">list</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">gen_select</span><span class="p">(</span><span class="n">frm</span><span class="p">,</span> <span class="n">attrs</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">))</span>
<div class="viewcode-block" id="WmiRequester.gen_select"><a class="viewcode-back" href="../../../wmi.html#windows.winobject.wmi.WmiRequester.gen_select">[docs]</a> <span class="k">def</span> <span class="nf">gen_select</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">frm</span><span class="p">,</span> <span class="n">attrs</span><span class="o">=</span><span class="s2">&quot;*&quot;</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Select ``attrs`` from ``frm`` in a generator (like :func:`gen_query`)</span>
<span class="sd"> :rtype: generator</span>
<span class="sd"> &quot;&quot;&quot;</span></div>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">gen_query</span><span class="p">(</span><span class="s2">&quot;select * from </span><span class="si">{0}</span><span class="s2">&quot;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">frm</span><span class="p">),</span> <span class="n">attrs</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
<span class="nd">@property</span>
<span class="k">def</span> <span class="nf">classes</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;The list of class available</span>
<span class="sd"> :rtype: list of str</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">return</span> <span class="p">[</span><span class="n">x</span><span class="p">[</span><span class="s2">&quot;__CLASS&quot;</span><span class="p">]</span> <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="s1">&#39;SELECT * FROM meta_class&#39;</span><span class="p">,</span> <span class="n">attrs</span><span class="o">=</span><span class="p">[</span><span class="s2">&quot;__CLASS&quot;</span><span class="p">])]</span>
<div class="viewcode-block" id="WmiRequester.query"><a class="viewcode-back" href="../../../wmi.html#windows.winobject.wmi.WmiRequester.query">[docs]</a> <span class="k">def</span> <span class="nf">query</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">query</span><span class="p">,</span> <span class="n">attrs</span><span class="o">=</span><span class="s2">&quot;*&quot;</span><span class="p">,</span> <span class="n">timeout</span><span class="o">=</span><span class="n">WBEM_INFINITE</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Execute WMI ``query`` and return the attributes ``attrs``</span>
<span class="sd"> Timeout is not applied for the full query time but the time to retrieve one object each time.</span>
<span class="sd"> :rtype: list of dict</span>
<span class="sd"> &quot;&quot;&quot;</span></div>
<span class="k">return</span> <span class="nb">list</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">gen_query</span><span class="p">(</span><span class="n">query</span><span class="p">,</span> <span class="n">attrs</span><span class="p">,</span> <span class="n">timeout</span><span class="p">))</span>
<div class="viewcode-block" id="WmiRequester.gen_query"><a class="viewcode-back" href="../../../wmi.html#windows.winobject.wmi.WmiRequester.gen_query">[docs]</a> <span class="k">def</span> <span class="nf">gen_query</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">query</span><span class="p">,</span> <span class="n">attrs</span><span class="o">=</span><span class="s2">&quot;*&quot;</span><span class="p">,</span> <span class="n">timeout</span><span class="o">=</span><span class="n">WBEM_INFINITE</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Execute WMI ``query`` and return a generator that will yield the ``attrs`` for one object each time.</span>
<span class="sd"> Each iteration is susceptible to raise.</span>
<span class="sd"> :rtype: generator</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">enumerator</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_exec_query</span><span class="p">(</span><span class="n">query</span><span class="p">,</span> <span class="n">WBEM_FLAG_FORWARD_ONLY</span> <span class="o">|</span> <span class="n">WBEM_FLAG_RETURN_IMMEDIATELY</span><span class="p">)</span>
<span class="k">try</span><span class="p">:</span>
<span class="k">for</span> <span class="n">obj</span><span class="p">,</span> <span class="n">retval</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_enumerator_values_generator</span><span class="p">(</span><span class="n">enumerator</span><span class="p">,</span> <span class="n">timeout</span><span class="o">=</span><span class="n">timeout</span><span class="p">):</span>
<span class="k">if</span> <span class="n">obj</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">WindowsError</span><span class="p">(</span><span class="n">retval</span><span class="p">,</span> <span class="n">WBEMSTATUS</span><span class="p">(</span><span class="n">retval</span> <span class="o">&amp;</span> <span class="mh">0xffffffff</span><span class="p">)</span><span class="o">.</span><span class="n">value</span><span class="p">)</span>
<span class="k">yield</span> <span class="bp">self</span><span class="o">.</span><span class="n">_iwbemclassobject_to_dict</span><span class="p">(</span><span class="n">obj</span><span class="p">,</span> <span class="n">attrs</span><span class="p">)</span>
<span class="k">finally</span><span class="p">:</span></div>
<span class="n">enumerator</span><span class="o">.</span><span class="n">Release</span><span class="p">()</span>
<span class="k">def</span> <span class="nf">_exec_query</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">query</span><span class="p">,</span> <span class="n">flags</span><span class="p">,</span> <span class="n">ctx</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="n">enumerator</span> <span class="o">=</span> <span class="n">IEnumWbemClassObject</span><span class="p">()</span>
<span class="k">try</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">service</span><span class="o">.</span><span class="n">ExecQuery</span><span class="p">(</span><span class="s2">&quot;WQL&quot;</span><span class="p">,</span> <span class="n">query</span><span class="p">,</span> <span class="n">flags</span><span class="p">,</span> <span class="n">ctx</span><span class="p">,</span> <span class="n">ctypes</span><span class="o">.</span><span class="n">byref</span><span class="p">(</span><span class="n">enumerator</span><span class="p">))</span>
<span class="k">except</span> <span class="ne">WindowsError</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span>
<span class="k">if</span> <span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">winerror</span> <span class="o">&amp;</span> <span class="mh">0xffffffff</span><span class="p">)</span> <span class="o">==</span> <span class="n">WBEM_E_INVALID_CLASS</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">WindowsError</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">winerror</span><span class="p">,</span> <span class="s1">&#39;WBEM_E_INVALID_CLASS &lt;Invalid WMI class &quot;</span><span class="si">{0}</span><span class="s1">&quot;&gt;&#39;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">query</span><span class="p">))</span>
<span class="k">elif</span> <span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">winerror</span> <span class="o">&amp;</span> <span class="mh">0xffffffff</span><span class="p">)</span> <span class="ow">in</span> <span class="n">WBEMSTATUS</span><span class="o">.</span><span class="n">values</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">WindowsError</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">winerror</span><span class="p">,</span> <span class="n">WBEMSTATUS</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">winerror</span> <span class="o">&amp;</span> <span class="mh">0xffffffff</span><span class="p">)</span><span class="o">.</span><span class="n">value</span><span class="p">)</span>
<span class="k">raise</span>
<span class="k">return</span> <span class="n">enumerator</span>
<span class="k">def</span> <span class="nf">_enumerator_values_generator</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">enumerator</span><span class="p">,</span> <span class="n">timeout</span><span class="o">=</span><span class="n">WBEM_INFINITE</span><span class="p">):</span>
<span class="n">count</span> <span class="o">=</span> <span class="n">ULONG</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="n">processor</span> <span class="o">=</span> <span class="n">IWbemClassObject</span><span class="p">()</span>
<span class="n">result</span> <span class="o">=</span> <span class="mi">0</span>
<span class="k">while</span> <span class="n">result</span> <span class="o">!=</span> <span class="n">WBEM_S_FALSE</span><span class="p">:</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">result</span> <span class="o">=</span> <span class="n">enumerator</span><span class="o">.</span><span class="n">Next</span><span class="p">(</span><span class="n">timeout</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="n">ctypes</span><span class="o">.</span><span class="n">byref</span><span class="p">(</span><span class="n">processor</span><span class="p">),</span> <span class="n">ctypes</span><span class="o">.</span><span class="n">byref</span><span class="p">(</span><span class="n">count</span><span class="p">))</span>
<span class="k">except</span> <span class="ne">WindowsError</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span>
<span class="k">if</span> <span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">winerror</span> <span class="o">&amp;</span> <span class="mh">0xffffffff</span><span class="p">)</span> <span class="o">==</span> <span class="n">WBEM_E_INVALID_CLASS</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">WindowsError</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">winerror</span><span class="p">,</span> <span class="s1">&#39;WBEM_E_INVALID_CLASS &lt;Invalid WMI class&gt;&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">winerror</span> <span class="o">&amp;</span> <span class="mh">0xffffffff</span><span class="p">)</span> <span class="ow">in</span> <span class="n">WBEMSTATUS</span><span class="o">.</span><span class="n">values</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">WindowsError</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">winerror</span><span class="p">,</span> <span class="n">WBEMSTATUS</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">winerror</span> <span class="o">&amp;</span> <span class="mh">0xffffffff</span><span class="p">)</span><span class="o">.</span><span class="n">value</span><span class="p">)</span>
<span class="k">raise</span>
<span class="n">procres</span> <span class="o">=</span> <span class="n">processor</span> <span class="k">if</span> <span class="n">count</span> <span class="k">else</span> <span class="kc">None</span>
<span class="k">if</span> <span class="n">result</span> <span class="o">!=</span> <span class="n">WBEM_S_FALSE</span><span class="p">:</span>
<span class="k">yield</span> <span class="n">procres</span><span class="p">,</span> <span class="n">result</span>
<span class="k">def</span> <span class="nf">_iwbemclassobject_to_dict</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">wbemclassobj</span><span class="p">,</span> <span class="n">attrs</span><span class="p">):</span>
<span class="k">if</span> <span class="n">attrs</span> <span class="o">==</span> <span class="s2">&quot;*&quot;</span><span class="p">:</span>
<span class="n">attrs</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="bp">self</span><span class="o">.</span><span class="n">get_names</span><span class="p">(</span><span class="n">wbemclassobj</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="n">x</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="s2">&quot;__&quot;</span><span class="p">)]</span>
<span class="n">obj_as_dict</span> <span class="o">=</span> <span class="p">{}</span>
<span class="n">variant_res</span> <span class="o">=</span> <span class="n">windows</span><span class="o">.</span><span class="n">com</span><span class="o">.</span><span class="n">ImprovedVariant</span><span class="p">()</span>
<span class="k">for</span> <span class="n">name</span> <span class="ow">in</span> <span class="n">attrs</span><span class="p">:</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">wbemclassobj</span><span class="o">.</span><span class="n">Get</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="n">ctypes</span><span class="o">.</span><span class="n">byref</span><span class="p">(</span><span class="n">variant_res</span><span class="p">),</span> <span class="kc">None</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">WindowsError</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span>
<span class="k">if</span> <span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">winerror</span> <span class="o">&amp;</span> <span class="mh">0xffffffff</span><span class="p">)</span> <span class="o">==</span> <span class="n">WBEM_E_NOT_FOUND</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">WindowsError</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">winerror</span><span class="p">,</span> <span class="s1">&#39;WBEM_E_NOT_FOUND &lt;Invalid Attribute &quot;</span><span class="si">{0}</span><span class="s1">&quot;&gt;&#39;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">name</span><span class="p">))</span>
<span class="k">if</span> <span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">winerror</span> <span class="o">&amp;</span> <span class="mh">0xffffffff</span><span class="p">)</span> <span class="ow">in</span> <span class="n">WBEMSTATUS</span><span class="o">.</span><span class="n">values</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">WindowsError</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">winerror</span><span class="p">,</span> <span class="n">WBEMSTATUS</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">winerror</span> <span class="o">&amp;</span> <span class="mh">0xffffffff</span><span class="p">)</span><span class="o">.</span><span class="n">value</span><span class="p">)</span>
<span class="k">raise</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">obj_as_dict</span><span class="p">[</span><span class="n">name</span><span class="p">]</span> <span class="o">=</span> <span class="n">variant_res</span><span class="o">.</span><span class="n">to_pyobject</span><span class="p">()</span>
<span class="k">except</span> <span class="ne">NotImplementedError</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;[WMI-ERROR] Field &lt;</span><span class="si">{0}</span><span class="s2">&gt; ignored: </span><span class="si">{1}</span><span class="s2">&quot;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="n">e</span><span class="p">))</span>
<span class="k">return</span> <span class="n">obj_as_dict</span>
<span class="k">def</span> <span class="nf">get_names</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">processor</span><span class="p">):</span>
<span class="n">res</span> <span class="o">=</span> <span class="n">POINTER</span><span class="p">(</span><span class="n">SAFEARRAY</span><span class="p">)()</span>
<span class="n">processor</span><span class="o">.</span><span class="n">GetNames</span><span class="p">(</span><span class="kc">None</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="kc">None</span><span class="p">,</span> <span class="n">byref</span><span class="p">(</span><span class="n">res</span><span class="p">))</span>
<span class="n">safe_array</span> <span class="o">=</span> <span class="n">ctypes</span><span class="o">.</span><span class="n">cast</span><span class="p">(</span><span class="n">res</span><span class="p">,</span> <span class="n">POINTER</span><span class="p">(</span><span class="n">windows</span><span class="o">.</span><span class="n">com</span><span class="o">.</span><span class="n">ImprovedSAFEARRAY</span><span class="p">))[</span><span class="mi">0</span><span class="p">]</span>
<span class="n">safe_array</span><span class="o">.</span><span class="n">elt_type</span> <span class="o">=</span> <span class="n">BSTR</span>
<span class="k">return</span> <span class="n">safe_array</span><span class="o">.</span><span class="n">to_list</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></div>
<span class="k">return</span> <span class="s2">&quot;&quot;&quot;&lt;</span><span class="si">{0}</span><span class="s2"> namespace=&quot;</span><span class="si">{1}</span><span class="s2">&quot;&gt;&quot;&quot;&quot;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="nb">type</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="vm">__name__</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">namespace</span><span class="p">)</span>
<div class="viewcode-block" id="WmiManager"><a class="viewcode-back" href="../../../wmi.html#windows.winobject.wmi.WmiManager">[docs]</a><span class="k">class</span> <span class="nc">WmiManager</span><span class="p">(</span><span class="nb">dict</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;The main WMI class exposed, used to list and access differents WMI namespace, can be used as a dict to access</span>
<span class="sd"> :class:`WmiRequester` by namespace</span>
<span class="sd"> Example:</span>
<span class="sd"> &gt;&gt;&gt; windows.system.wmi[&quot;root\\SecurityCenter2&quot;]</span>
<span class="sd"> &lt;WmiRequester namespace=&quot;root\\SecurityCenter2&quot;&gt;</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">DEFAULT_NAMESPACE</span> <span class="o">=</span> <span class="s2">&quot;root</span><span class="se">\\</span><span class="s2">cimv2&quot;</span> <span class="c1">#: The default namespace for :func:`select` &amp; :func:`query`</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="bp">self</span><span class="o">.</span><span class="n">wmi_requester_by_namespace</span> <span class="o">=</span> <span class="p">{}</span>
<span class="nd">@property</span>
<span class="k">def</span> <span class="nf">select</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sa">r</span><span class="sd">&quot;&quot;&quot;:func:`WmiRequester.select` for default WMI namespace &#39;root\\cimv2&#39;&quot;&quot;&quot;</span>
<span class="k">return</span> <span class="bp">self</span><span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">DEFAULT_NAMESPACE</span><span class="p">]</span><span class="o">.</span><span class="n">select</span>
<span class="nd">@property</span>
<span class="k">def</span> <span class="nf">query</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sa">r</span><span class="sd">&quot;&quot;&quot;:func:`WmiRequester.query` for default WMI namespace &#39;root\\cimv2&#39;&quot;&quot;&quot;</span>
<span class="k">return</span> <span class="bp">self</span><span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">DEFAULT_NAMESPACE</span><span class="p">]</span><span class="o">.</span><span class="n">query</span>
<span class="k">def</span> <span class="nf">get_subnamespaces</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="s2">&quot;root&quot;</span><span class="p">):</span>
<span class="k">return</span> <span class="p">[</span><span class="n">x</span><span class="p">[</span><span class="s2">&quot;Name&quot;</span><span class="p">]</span> <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="bp">self</span><span class="p">[</span><span class="n">root</span><span class="p">]</span><span class="o">.</span><span class="n">select</span><span class="p">(</span><span class="s2">&quot;__NameSpace&quot;</span><span class="p">,</span> <span class="p">[</span><span class="s2">&quot;Name&quot;</span><span class="p">])]</span>
<span class="n">namespaces</span> <span class="o">=</span> <span class="nb">property</span><span class="p">(</span><span class="n">get_subnamespaces</span><span class="p">)</span>
<span class="sd">&quot;&quot;&quot;The list of available WMI namespaces&quot;&quot;&quot;</span>
<span class="k">def</span> <span class="nf">_open_wmi_requester</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">namespace</span><span class="p">):</span>
<span class="k">return</span> <span class="n">WmiRequester</span><span class="p">(</span><span class="n">namespace</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">__missing__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">):</span>
<span class="bp">self</span><span class="p">[</span><span class="n">key</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_open_wmi_requester</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span><span class="p">[</span><span class="n">key</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></div>
<span class="k">return</span> <span class="nb">object</span><span class="o">.</span><span class="fm">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
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