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MO2 Python Plugin API
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<p class="caption" role="heading"><span class="caption-text">Contents:</span></p>
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<li class="toctree-l1"><a class="reference internal" href="setup-tools.html">Setting up the environment</a><ul>
<li class="toctree-l2"><a class="reference internal" href="setup-tools.html#required-tools">Required tools</a></li>
<li class="toctree-l2"><a class="reference internal" href="setup-tools.html#preparation">Preparation</a><ul>
<li class="toctree-l3"><a class="reference internal" href="setup-tools.html#get-the-mobase-stubs">1. Get the <code class="docutils literal notranslate"><span class="pre">mobase</span></code> stubs</a></li>
<li class="toctree-l3"><a class="reference internal" href="setup-tools.html#configure-visual-studio-code-for-mobase">2. Configure Visual Studio Code for <code class="docutils literal notranslate"><span class="pre">mobase</span></code></a></li>
<li class="toctree-l3"><a class="reference internal" href="setup-tools.html#optional-configure-black-to-auto-format-your-source-files">3. [Optional] Configure <code class="docutils literal notranslate"><span class="pre">black</span></code> to auto-format your source files</a></li>
<li class="toctree-l3"><a class="reference internal" href="setup-tools.html#optional-automatically-reload-plugins-during-development">4. [Optional] Automatically reload plugins during development</a></li>
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<li class="toctree-l2"><a class="reference internal" href="setup-tools.html#testing-the-setup">Testing the setup</a></li>
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<li class="toctree-l1"><a class="reference internal" href="plugin-types.html">Type of Plugins</a><ul>
<li class="toctree-l2"><a class="reference internal" href="plugin-types.html#installers">Installers</a></li>
<li class="toctree-l2"><a class="reference internal" href="plugin-types.html#previewers">Previewers</a></li>
<li class="toctree-l2"><a class="reference internal" href="plugin-types.html#mod-page">Mod Page</a></li>
<li class="toctree-l2"><a class="reference internal" href="plugin-types.html#game">Game</a></li>
<li class="toctree-l2"><a class="reference internal" href="plugin-types.html#tool">Tool</a></li>
<li class="toctree-l2"><a class="reference internal" href="plugin-types.html#proxies">Proxies</a></li>
<li class="toctree-l2"><a class="reference internal" href="plugin-types.html#free-plugins"><em>Free Plugins</em></a></li>
<li class="toctree-l2"><a class="reference internal" href="plugin-types.html#extension-interfaces">Extension Interfaces</a><ul>
<li class="toctree-l3"><a class="reference internal" href="plugin-types.html#diagnose">Diagnose</a></li>
<li class="toctree-l3"><a class="reference internal" href="plugin-types.html#file-mappings">File Mappings</a></li>
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</ul>
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<li class="toctree-l1"><a class="reference internal" href="writing-plugins.html">Writing Plugins</a><ul>
<li class="toctree-l2"><a class="reference internal" href="writing-plugins.html#getting-started">Getting started</a><ul>
<li class="toctree-l3"><a class="reference internal" href="writing-plugins.html#single-file-plugins">Single file plugins</a></li>
<li class="toctree-l3"><a class="reference internal" href="writing-plugins.html#module-plugins">Module Plugins</a></li>
</ul>
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<li class="toctree-l2"><a class="reference internal" href="writing-plugins.html#writing-the-plugin">Writing the plugin</a><ul>
<li class="toctree-l3"><a class="reference internal" href="writing-plugins.html#iplugin-interface"><code class="docutils literal notranslate"><span class="pre">IPlugin</span></code> interface</a></li>
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<li class="toctree-l2"><a class="reference internal" href="writing-plugins.html#examples">Examples</a><ul>
<li class="toctree-l3"><a class="reference internal" href="writing-plugins.html#tutorial-plugins">Tutorial Plugins</a></li>
<li class="toctree-l3"><a class="reference internal" href="writing-plugins.html#official-plugins">Official Plugins</a></li>
<li class="toctree-l3"><a class="reference internal" href="writing-plugins.html#unofficial-plugins">Unofficial Plugins</a></li>
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<li class="toctree-l2"><a class="reference internal" href="writing-plugins.html#internationalization">Internationalization</a><ul>
<li class="toctree-l3"><a class="reference internal" href="writing-plugins.html#adding-translation-code">Adding translation code</a></li>
<li class="toctree-l3"><a class="reference internal" href="writing-plugins.html#generating-qt-translation-files">Generating Qt translation files</a></li>
<li class="toctree-l3"><a class="reference internal" href="writing-plugins.html#translating">Translating</a></li>
<li class="toctree-l3"><a class="reference internal" href="writing-plugins.html#distributing-translations">Distributing translations</a></li>
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<li class="toctree-l1 current"><a class="current reference internal" href="#">FAQ</a><ul>
<li class="toctree-l2"><a class="reference internal" href="#why-is-mo2-throwing-an-exception-when-i-try-to-create-a-type-inheriting-one-of-mo2-class">1. Why is MO2 throwing an exception when I try to create a type inheriting one of MO2 class?</a></li>
<li class="toctree-l2"><a class="reference internal" href="#how-can-i-be-sure-to-implement-all-the-required-methods-when-creating-a-plugin">2. How can I be sure to implement all the required methods when creating a plugin?</a></li>
<li class="toctree-l2"><a class="reference internal" href="#why-are-my-isinstance-x-qobject-and-isinstance-y-qwidget-not-working">3. Why are my <code class="docutils literal notranslate"><span class="pre">isinstance(x,</span> <span class="pre">QObject)</span></code> and <code class="docutils literal notranslate"><span class="pre">isinstance(y,</span> <span class="pre">QWidget)</span></code> not working?</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="autoapi/index.html">API Reference</a><ul>
<li class="toctree-l2"><a class="reference internal" href="autoapi/mobase/index.html">mobase</a><ul>
<li class="toctree-l3"><a class="reference internal" href="autoapi/mobase/index.html#submodules">Submodules</a><ul>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/widgets/index.html">mobase.widgets</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="autoapi/mobase/index.html#attributes">Attributes</a></li>
<li class="toctree-l3"><a class="reference internal" href="autoapi/mobase/index.html#classes">Classes</a></li>
<li class="toctree-l3"><a class="reference internal" href="autoapi/mobase/index.html#functions">Functions</a></li>
<li class="toctree-l3"><a class="reference internal" href="autoapi/mobase/index.html#package-contents">Package Contents</a><ul>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.BSAInvalidation"><code class="docutils literal notranslate"><span class="pre">BSAInvalidation</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.DataArchives"><code class="docutils literal notranslate"><span class="pre">DataArchives</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.EndorsedState"><code class="docutils literal notranslate"><span class="pre">EndorsedState</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.ExecutableForcedLoadSetting"><code class="docutils literal notranslate"><span class="pre">ExecutableForcedLoadSetting</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.ExecutableInfo"><code class="docutils literal notranslate"><span class="pre">ExecutableInfo</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.FileInfo"><code class="docutils literal notranslate"><span class="pre">FileInfo</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.FileTreeEntry"><code class="docutils literal notranslate"><span class="pre">FileTreeEntry</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.GameFeature"><code class="docutils literal notranslate"><span class="pre">GameFeature</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.GamePlugins"><code class="docutils literal notranslate"><span class="pre">GamePlugins</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.GuessQuality"><code class="docutils literal notranslate"><span class="pre">GuessQuality</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.GuessedString"><code class="docutils literal notranslate"><span class="pre">GuessedString</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.IDownloadManager"><code class="docutils literal notranslate"><span class="pre">IDownloadManager</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.IFileTree"><code class="docutils literal notranslate"><span class="pre">IFileTree</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.IGameFeatures"><code class="docutils literal notranslate"><span class="pre">IGameFeatures</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.IInstallationManager"><code class="docutils literal notranslate"><span class="pre">IInstallationManager</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.IModInterface"><code class="docutils literal notranslate"><span class="pre">IModInterface</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.IModList"><code class="docutils literal notranslate"><span class="pre">IModList</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.IModRepositoryBridge"><code class="docutils literal notranslate"><span class="pre">IModRepositoryBridge</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.IOrganizer"><code class="docutils literal notranslate"><span class="pre">IOrganizer</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.IPlugin"><code class="docutils literal notranslate"><span class="pre">IPlugin</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.IPluginDiagnose"><code class="docutils literal notranslate"><span class="pre">IPluginDiagnose</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.IPluginFileMapper"><code class="docutils literal notranslate"><span class="pre">IPluginFileMapper</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.IPluginGame"><code class="docutils literal notranslate"><span class="pre">IPluginGame</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.IPluginInstaller"><code class="docutils literal notranslate"><span class="pre">IPluginInstaller</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.IPluginInstallerCustom"><code class="docutils literal notranslate"><span class="pre">IPluginInstallerCustom</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.IPluginInstallerSimple"><code class="docutils literal notranslate"><span class="pre">IPluginInstallerSimple</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.IPluginList"><code class="docutils literal notranslate"><span class="pre">IPluginList</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.IPluginModPage"><code class="docutils literal notranslate"><span class="pre">IPluginModPage</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.IPluginPreview"><code class="docutils literal notranslate"><span class="pre">IPluginPreview</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.IPluginRequirement"><code class="docutils literal notranslate"><span class="pre">IPluginRequirement</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.IPluginTool"><code class="docutils literal notranslate"><span class="pre">IPluginTool</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.IProfile"><code class="docutils literal notranslate"><span class="pre">IProfile</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.ISaveGame"><code class="docutils literal notranslate"><span class="pre">ISaveGame</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.ISaveGameInfoWidget"><code class="docutils literal notranslate"><span class="pre">ISaveGameInfoWidget</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.InstallResult"><code class="docutils literal notranslate"><span class="pre">InstallResult</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.LoadOrderMechanism"><code class="docutils literal notranslate"><span class="pre">LoadOrderMechanism</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.LocalSavegames"><code class="docutils literal notranslate"><span class="pre">LocalSavegames</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.Mapping"><code class="docutils literal notranslate"><span class="pre">Mapping</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.ModDataChecker"><code class="docutils literal notranslate"><span class="pre">ModDataChecker</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.ModDataContent"><code class="docutils literal notranslate"><span class="pre">ModDataContent</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.ModRepositoryFileInfo"><code class="docutils literal notranslate"><span class="pre">ModRepositoryFileInfo</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.ModState"><code class="docutils literal notranslate"><span class="pre">ModState</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.PluginRequirementFactory"><code class="docutils literal notranslate"><span class="pre">PluginRequirementFactory</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.PluginSetting"><code class="docutils literal notranslate"><span class="pre">PluginSetting</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.PluginState"><code class="docutils literal notranslate"><span class="pre">PluginState</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.ProfileSetting"><code class="docutils literal notranslate"><span class="pre">ProfileSetting</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.ReleaseType"><code class="docutils literal notranslate"><span class="pre">ReleaseType</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.SaveGameInfo"><code class="docutils literal notranslate"><span class="pre">SaveGameInfo</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.ScriptExtender"><code class="docutils literal notranslate"><span class="pre">ScriptExtender</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.SortMechanism"><code class="docutils literal notranslate"><span class="pre">SortMechanism</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.TrackedState"><code class="docutils literal notranslate"><span class="pre">TrackedState</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.UnmanagedMods"><code class="docutils literal notranslate"><span class="pre">UnmanagedMods</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.VersionInfo"><code class="docutils literal notranslate"><span class="pre">VersionInfo</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.VersionScheme"><code class="docutils literal notranslate"><span class="pre">VersionScheme</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.getFileVersion"><code class="docutils literal notranslate"><span class="pre">getFileVersion()</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.getIconForExecutable"><code class="docutils literal notranslate"><span class="pre">getIconForExecutable()</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.getProductVersion"><code class="docutils literal notranslate"><span class="pre">getProductVersion()</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.GameFeatureType"><code class="docutils literal notranslate"><span class="pre">GameFeatureType</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.INVALID_HANDLE_VALUE"><code class="docutils literal notranslate"><span class="pre">INVALID_HANDLE_VALUE</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.MoVariant"><code class="docutils literal notranslate"><span class="pre">MoVariant</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="autoapi/mobase/index.html#mobase.__version__"><code class="docutils literal notranslate"><span class="pre">__version__</span></code></a></li>
</ul>
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<section id="faq">
<h1>FAQ<a class="headerlink" href="#faq" title="Link to this heading"></a></h1>
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</div>
<section id="why-is-mo2-throwing-an-exception-when-i-try-to-create-a-type-inheriting-one-of-mo2-class">
<h2>1. Why is MO2 throwing an exception when I try to create a type inheriting one of MO2 class?<a class="headerlink" href="#why-is-mo2-throwing-an-exception-when-i-try-to-create-a-type-inheriting-one-of-mo2-class" title="Link to this heading"></a></h2>
<p>This often happens if you forget to call <code class="docutils literal notranslate"><span class="pre">super().__init__()</span></code> with the right arguments.
Even if the list of arguments is empty (as in the example), it must be called due to a “bug”
in <code class="docutils literal notranslate"><span class="pre">boost::python</span></code>:</p>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="k">class</span><span class="w"> </span><span class="nc">MySaveGame</span><span class="p">(</span><span class="n">mobase</span><span class="o">.</span><span class="n">ISaveGame</span><span class="p">):</span>
<span class="k">def</span><span class="w"> </span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">()</span> <span class="c1"># Mandatory!</span>
</pre></div>
</div>
</section>
<section id="how-can-i-be-sure-to-implement-all-the-required-methods-when-creating-a-plugin">
<h2>2. How can I be sure to implement all the required methods when creating a plugin?<a class="headerlink" href="#how-can-i-be-sure-to-implement-all-the-required-methods-when-creating-a-plugin" title="Link to this heading"></a></h2>
<p>It is kind of annoying to create a MO2 python plugin that kind of works and have it crash
at some point simply because there plugin is missing a function implementation.
You can have <code class="docutils literal notranslate"><span class="pre">mypy</span></code> warn you for such issue by typing the <code class="docutils literal notranslate"><span class="pre">createPlugin</span></code> or <code class="docutils literal notranslate"><span class="pre">createPlugins</span></code>
functions:</p>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="kn">import</span><span class="w"> </span><span class="nn">typing</span>
<span class="c1"># A plugin that is missing something (e.g. display()).</span>
<span class="k">class</span><span class="w"> </span><span class="nc">MyPlugin</span><span class="p">(</span><span class="n">mobase</span><span class="o">.</span><span class="n">IPluginTool</span><span class="p">):</span> <span class="o">...</span>
<span class="c1"># If you type-hint `createPlugin` by adding `-&gt; mobase.IPlugin`,</span>
<span class="c1"># `mypy` will warn you that `MyPlugin` is an incomplete class.</span>
<span class="k">def</span><span class="w"> </span><span class="nf">createPlugin</span><span class="p">()</span> <span class="o">-&gt;</span> <span class="n">mobase</span><span class="o">.</span><span class="n">IPlugin</span><span class="p">:</span>
<span class="k">return</span> <span class="n">MyPlugin</span><span class="p">()</span>
<span class="c1"># You can also type-hint `createPlugins`:</span>
<span class="k">def</span><span class="w"> </span><span class="nf">createPlugins</span><span class="p">()</span> <span class="o">-&gt;</span> <span class="n">typing</span><span class="o">.</span><span class="n">List</span><span class="p">[</span><span class="n">mobase</span><span class="o">.</span><span class="n">IPlugin</span><span class="p">]:</span>
<span class="k">return</span> <span class="p">[</span><span class="n">MyPlugin</span><span class="p">()]</span>
</pre></div>
</div>
</section>
<section id="why-are-my-isinstance-x-qobject-and-isinstance-y-qwidget-not-working">
<h2>3. Why are my <code class="docutils literal notranslate"><span class="pre">isinstance(x,</span> <span class="pre">QObject)</span></code> and <code class="docutils literal notranslate"><span class="pre">isinstance(y,</span> <span class="pre">QWidget)</span></code> not working?<a class="headerlink" href="#why-are-my-isinstance-x-qobject-and-isinstance-y-qwidget-not-working" title="Link to this heading"></a></h2>
<p>Some classes from <code class="docutils literal notranslate"><span class="pre">mobase</span></code> are said to inherit <code class="docutils literal notranslate"><span class="pre">QObject</span></code> and <code class="docutils literal notranslate"><span class="pre">QWidget</span></code> in the
stubs, such as <a class="reference internal" href="autoapi/mobase/index.html#mobase.IDownloadManager" title="mobase.IDownloadManager"><code class="xref py py-class docutils literal notranslate"><span class="pre">mobase.IDownloadManager</span></code></a>.
This is not the case in practice due to limitation in Python and <code class="docutils literal notranslate"><span class="pre">boost::python</span></code>.
The bases are in the stubs to allow for auto-completion and typing, which is then
simulated in the real <code class="docutils literal notranslate"><span class="pre">mobase</span></code> by overriding <code class="docutils literal notranslate"><span class="pre">__getattr__</span></code> and delegating to
the underlying <code class="docutils literal notranslate"><span class="pre">QObject</span></code> or <code class="docutils literal notranslate"><span class="pre">QWidget</span></code>.</p>
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