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<section id="module-evennia.utils.optionhandler">
<span id="evennia-utils-optionhandler"></span><h1>evennia.utils.optionhandler<a class="headerlink" href="#module-evennia.utils.optionhandler" title="Permalink to this headline"></a></h1>
<dl class="py class">
<dt id="evennia.utils.optionhandler.InMemorySaveHandler">
<em class="property">class </em><code class="sig-prename descclassname">evennia.utils.optionhandler.</code><code class="sig-name descname">InMemorySaveHandler</code><a class="reference internal" href="../_modules/evennia/utils/optionhandler.html#InMemorySaveHandler"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#evennia.utils.optionhandler.InMemorySaveHandler" title="Permalink to this definition"></a></dt>
<dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">object</span></code></p>
<p>Fallback SaveHandler, implementing a minimum of the required save mechanism
and storing data in memory.</p>
<dl class="py method">
<dt id="evennia.utils.optionhandler.InMemorySaveHandler.__init__">
<code class="sig-name descname">__init__</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="../_modules/evennia/utils/optionhandler.html#InMemorySaveHandler.__init__"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#evennia.utils.optionhandler.InMemorySaveHandler.__init__" title="Permalink to this definition"></a></dt>
<dd><p>Initialize self. See help(type(self)) for accurate signature.</p>
</dd></dl>
<dl class="py method">
<dt id="evennia.utils.optionhandler.InMemorySaveHandler.add">
<code class="sig-name descname">add</code><span class="sig-paren">(</span><em class="sig-param"><span class="n">key</span></em>, <em class="sig-param"><span class="n">value</span><span class="o">=</span><span class="default_value">None</span></em>, <em class="sig-param"><span class="o">**</span><span class="n">kwargs</span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/evennia/utils/optionhandler.html#InMemorySaveHandler.add"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#evennia.utils.optionhandler.InMemorySaveHandler.add" title="Permalink to this definition"></a></dt>
<dd></dd></dl>
<dl class="py method">
<dt id="evennia.utils.optionhandler.InMemorySaveHandler.get">
<code class="sig-name descname">get</code><span class="sig-paren">(</span><em class="sig-param"><span class="n">key</span></em>, <em class="sig-param"><span class="n">default</span><span class="o">=</span><span class="default_value">None</span></em>, <em class="sig-param"><span class="o">**</span><span class="n">kwargs</span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/evennia/utils/optionhandler.html#InMemorySaveHandler.get"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#evennia.utils.optionhandler.InMemorySaveHandler.get" title="Permalink to this definition"></a></dt>
<dd></dd></dl>
</dd></dl>
<dl class="py class">
<dt id="evennia.utils.optionhandler.OptionHandler">
<em class="property">class </em><code class="sig-prename descclassname">evennia.utils.optionhandler.</code><code class="sig-name descname">OptionHandler</code><span class="sig-paren">(</span><em class="sig-param"><span class="n">obj</span></em>, <em class="sig-param"><span class="n">options_dict</span><span class="o">=</span><span class="default_value">None</span></em>, <em class="sig-param"><span class="n">savefunc</span><span class="o">=</span><span class="default_value">None</span></em>, <em class="sig-param"><span class="n">loadfunc</span><span class="o">=</span><span class="default_value">None</span></em>, <em class="sig-param"><span class="n">save_kwargs</span><span class="o">=</span><span class="default_value">None</span></em>, <em class="sig-param"><span class="n">load_kwargs</span><span class="o">=</span><span class="default_value">None</span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/evennia/utils/optionhandler.html#OptionHandler"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#evennia.utils.optionhandler.OptionHandler" title="Permalink to this definition"></a></dt>
<dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">object</span></code></p>
<p>This is a generic Option handler. Retrieve options either as properties on
this handler or by using the .get method.</p>
<p>This is used for Account.options but it could be used by Scripts or Objects
just as easily. All it needs to be provided is an options_dict.</p>
<dl class="py method">
<dt id="evennia.utils.optionhandler.OptionHandler.__init__">
<code class="sig-name descname">__init__</code><span class="sig-paren">(</span><em class="sig-param"><span class="n">obj</span></em>, <em class="sig-param"><span class="n">options_dict</span><span class="o">=</span><span class="default_value">None</span></em>, <em class="sig-param"><span class="n">savefunc</span><span class="o">=</span><span class="default_value">None</span></em>, <em class="sig-param"><span class="n">loadfunc</span><span class="o">=</span><span class="default_value">None</span></em>, <em class="sig-param"><span class="n">save_kwargs</span><span class="o">=</span><span class="default_value">None</span></em>, <em class="sig-param"><span class="n">load_kwargs</span><span class="o">=</span><span class="default_value">None</span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/evennia/utils/optionhandler.html#OptionHandler.__init__"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#evennia.utils.optionhandler.OptionHandler.__init__" title="Permalink to this definition"></a></dt>
<dd><p>Initialize an OptionHandler.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>obj</strong> (<em>object</em>) – The object this handler sits on. This is usually a TypedObject.</p></li>
<li><p><strong>options_dict</strong> (<em>dict</em>) – A dictionary of option keys, where the values
are options. The format of those tuples is: (‘key’, “Description to
show”, ‘option_type’, &lt;default value&gt;)</p></li>
<li><p><strong>savefunc</strong> (<em>callable</em>) – A callable for all options to call when saving itself.
It will be called as <strong>savefunc(key, value, **save_kwargs)</strong>. A common one
to pass would be AttributeHandler.add.</p></li>
<li><p><strong>loadfunc</strong> (<em>callable</em>) – A callable for all options to call when loading data into
itself. It will be called as <strong>loadfunc(key, default=default, **load_kwargs)</strong>.
A common one to pass would be AttributeHandler.get.</p></li>
<li><p><strong>save_kwargs</strong> (<em>any</em>) – Optional extra kwargs to pass into <strong>savefunc</strong> above.</p></li>
<li><p><strong>load_kwargs</strong> (<em>any</em>) – Optional extra kwargs to pass into <strong>loadfunc</strong> above.</p></li>
</ul>
</dd>
</dl>
<p class="rubric">Notes</p>
<p>Both loadfunc and savefunc must be specified. If only one is given, the other
will be ignored and in-memory storage will be used.</p>
</dd></dl>
<dl class="py method">
<dt id="evennia.utils.optionhandler.OptionHandler.get">
<code class="sig-name descname">get</code><span class="sig-paren">(</span><em class="sig-param"><span class="n">key</span></em>, <em class="sig-param"><span class="n">default</span><span class="o">=</span><span class="default_value">None</span></em>, <em class="sig-param"><span class="n">return_obj</span><span class="o">=</span><span class="default_value">False</span></em>, <em class="sig-param"><span class="n">raise_error</span><span class="o">=</span><span class="default_value">False</span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/evennia/utils/optionhandler.html#OptionHandler.get"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#evennia.utils.optionhandler.OptionHandler.get" title="Permalink to this definition"></a></dt>
<dd><p>Retrieves an Option stored in the handler. Will load it if it doesn’t exist.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>key</strong> (<em>str</em>) – The option key to retrieve.</p></li>
<li><p><strong>default</strong> (<em>any</em>) – What to return if the option is defined.</p></li>
<li><p><strong>return_obj</strong> (<em>bool</em><em>, </em><em>optional</em>) – If True, returns the actual option
object instead of its value.</p></li>
<li><p><strong>raise_error</strong> (<em>bool</em><em>, </em><em>optional</em>) – Raise Exception if key is not found in options.</p></li>
</ul>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p><em>option_value (any or Option)</em> – An option value the Option itself.</p>
</dd>
<dt class="field-odd">Raises</dt>
<dd class="field-odd"><p><strong>KeyError</strong> – If option is not defined.</p>
</dd>
</dl>
</dd></dl>
<dl class="py method">
<dt id="evennia.utils.optionhandler.OptionHandler.set">
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<code class="sig-name descname">set</code><span class="sig-paren">(</span><em class="sig-param"><span class="n">key</span></em>, <em class="sig-param"><span class="n">value</span></em>, <em class="sig-param"><span class="o">**</span><span class="n">kwargs</span></em><span class="sig-paren">)</span> &#x2192; BaseOption<a class="reference internal" href="../_modules/evennia/utils/optionhandler.html#OptionHandler.set"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#evennia.utils.optionhandler.OptionHandler.set" title="Permalink to this definition"></a></dt>
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<dd><p>Change an individual option.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>key</strong> (<em>str</em>) – The key of an option that can be changed. Allows partial matching.</p></li>
<li><p><strong>value</strong> (<em>str</em>) – The value that should be checked, coerced, and stored.:</p></li>
<li><p><strong>kwargs</strong> (<em>any</em><em>, </em><em>optional</em>) – These are passed into the Option’s validation function,
save function and display function and allows to customize either.</p></li>
</ul>
</dd>
<dt class="field-even">Returns</dt>
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<dd class="field-even"><p><p><em>BaseOption</em> –</p>
<dl class="simple">
<dt>The matched object. Its new value can be accessed with</dt><dd><p>op.value or op.display().</p>
</dd>
</dl>
</p>
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</dd>
</dl>
</dd></dl>
<dl class="py method">
<dt id="evennia.utils.optionhandler.OptionHandler.all">
<code class="sig-name descname">all</code><span class="sig-paren">(</span><em class="sig-param"><span class="n">return_objs</span><span class="o">=</span><span class="default_value">False</span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/evennia/utils/optionhandler.html#OptionHandler.all"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#evennia.utils.optionhandler.OptionHandler.all" title="Permalink to this definition"></a></dt>
<dd><p>Get all options defined on this handler.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>return_objs</strong> (<em>bool</em><em>, </em><em>optional</em>) – Return the actual Option objects rather
than their values.</p>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p><p><em>all_options (dict)</em> –</p>
<dl class="simple">
<dt>All options on this handler, either <strong>{key: value}</strong></dt><dd><p>or <strong>{key: &lt;Option&gt;}</strong> if <strong>return_objs</strong> is <strong>True</strong>.</p>
</dd>
</dl>
</p>
</dd>
</dl>
</dd></dl>
</dd></dl>
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