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        Package&nbsp;web2py ::
        <a href="web2py.gluon-module.html">Package&nbsp;gluon</a> ::
        <a href="web2py.gluon.tools-module.html">Module&nbsp;tools</a> ::
        Class&nbsp;PluginManager
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<!-- ==================== CLASS DESCRIPTION ==================== -->
<h1 class="epydoc">Class PluginManager</h1><span class="codelink"><a href="web2py.gluon.tools-pysrc.html#PluginManager">source&nbsp;code</a></span><br /><br />
<pre class="base-tree">
object --+
         |
        <strong class="uidshort">PluginManager</strong>
</pre>

<hr />
<p>Plugin Manager is similar to a storage object but it is a single level
  singleton this means that multiple instances within the same thread share
  the same attributes Its constructor is also special. The first argument 
  is the name of the plugin you are defining. The named arguments are 
  parameters needed by the plugin with default values. If the parameters 
  were previous defined, the old values are used.</p>
  <p>For example:</p>
  <p>### in some general configuration file: &gt;&gt;&gt; plugins = 
  PluginManager() &gt;&gt;&gt; plugins.me.param1=3</p>
  <p>### within the plugin model &gt;&gt;&gt; _ = 
  PluginManager('me',param1=5,param2=6,param3=7)</p>
  <p>### where the plugin is used &gt;&gt;&gt; print plugins.me.param1 3 
  &gt;&gt;&gt; print plugins.me.param2 6 &gt;&gt;&gt; plugins.me.param3 = 8
  &gt;&gt;&gt; print plugins.me.param3 8</p>
  Here are some tests:
<pre class="py-doctest">
<span class="py-prompt">&gt;&gt;&gt; </span>a=PluginManager()
<span class="py-prompt">&gt;&gt;&gt; </span>a.x=6
<span class="py-prompt">&gt;&gt;&gt; </span>b=PluginManager(<span class="py-string">'check'</span>)
<span class="py-prompt">&gt;&gt;&gt; </span><span class="py-keyword">print</span> b.x
<span class="py-output">6</span>
<span class="py-output"></span><span class="py-prompt">&gt;&gt;&gt; </span>b=PluginManager() <span class="py-comment"># reset settings</span>
<span class="py-prompt">&gt;&gt;&gt; </span><span class="py-keyword">print</span> b.x
<span class="py-output">&lt;Storage {}&gt;</span>
<span class="py-output"></span><span class="py-prompt">&gt;&gt;&gt; </span>b.x=7
<span class="py-prompt">&gt;&gt;&gt; </span><span class="py-keyword">print</span> a.x
<span class="py-output">7</span>
<span class="py-output"></span><span class="py-prompt">&gt;&gt;&gt; </span>a.y.z=8
<span class="py-prompt">&gt;&gt;&gt; </span><span class="py-keyword">print</span> b.y.z
<span class="py-output">8</span>
<span class="py-output"></span><span class="py-prompt">&gt;&gt;&gt; </span>test_thread_separation()
<span class="py-output">5</span>
<span class="py-output"></span><span class="py-prompt">&gt;&gt;&gt; </span>plugins=PluginManager(<span class="py-string">'me'</span>,db=<span class="py-string">'mydb'</span>)
<span class="py-prompt">&gt;&gt;&gt; </span><span class="py-keyword">print</span> plugins.me.db
<span class="py-output">mydb</span>
<span class="py-output"></span><span class="py-prompt">&gt;&gt;&gt; </span><span class="py-keyword">print</span> <span class="py-string">'me'</span> <span class="py-keyword">in</span> plugins
<span class="py-output">True</span>
<span class="py-output"></span><span class="py-prompt">&gt;&gt;&gt; </span><span class="py-keyword">print</span> plugins.me.installed
<span class="py-output">True</span></pre><br /><br />

<!-- ==================== INSTANCE METHODS ==================== -->
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          <td><span class="summary-sig"><a href="web2py.gluon.tools.PluginManager-class.html#__init__" class="summary-sig-name">__init__</a>(<span class="summary-sig-arg">self</span>,
        <span class="summary-sig-arg">plugin</span>=<span class="summary-sig-default">1</span>,
        <span class="summary-sig-arg">**defaults</span>)</span><br />
      x.__init__(...) initializes x; see x.__class__.__doc__ for 
      signature</td>
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            <span class="codelink"><a href="web2py.gluon.tools-pysrc.html#PluginManager.__init__">source&nbsp;code</a></span>
            
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          <td><span class="summary-sig"><a name="__getattr__"></a><span class="summary-sig-name">__getattr__</span>(<span class="summary-sig-arg">self</span>,
        <span class="summary-sig-arg">key</span>)</span></td>
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            <span class="codelink"><a href="web2py.gluon.tools-pysrc.html#PluginManager.__getattr__">source&nbsp;code</a></span>
            
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          <td><span class="summary-sig"><a name="keys"></a><span class="summary-sig-name">keys</span>(<span class="summary-sig-arg">self</span>)</span></td>
          <td align="right" valign="top">
            <span class="codelink"><a href="web2py.gluon.tools-pysrc.html#PluginManager.keys">source&nbsp;code</a></span>
            
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          <td><span class="summary-sig"><a name="__contains__"></a><span class="summary-sig-name">__contains__</span>(<span class="summary-sig-arg">self</span>,
        <span class="summary-sig-arg">key</span>)</span></td>
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    <p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
      <code>__delattr__</code>,
      <code>__getattribute__</code>,
      <code>__hash__</code>,
      <code>__reduce__</code>,
      <code>__reduce_ex__</code>,
      <code>__repr__</code>,
      <code>__setattr__</code>,
      <code>__str__</code>
      </p>
    </td>
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<!-- ==================== STATIC METHODS ==================== -->
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          <td><span class="summary-sig"><a href="web2py.gluon.tools.PluginManager-class.html#__new__" class="summary-sig-name">__new__</a>(<span class="summary-sig-arg">cls</span>,
        <span class="summary-sig-arg">*a</span>,
        <span class="summary-sig-arg">**b</span>)</span><br />
      Returns:
a new object with type S, a subtype of T</td>
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            <span class="codelink"><a href="web2py.gluon.tools-pysrc.html#PluginManager.__new__">source&nbsp;code</a></span>
            
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        <a name="instances"></a><span class="summary-name">instances</span> = <code title="{}"><code class="variable-group">{</code><code class="variable-group">}</code></code>
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  <h3 class="epydoc"><span class="sig"><span class="sig-name">__new__</span>(<span class="sig-arg">cls</span>,
        <span class="sig-arg">*a</span>,
        <span class="sig-arg">**b</span>)</span>
    <br /><em class="fname">Static Method</em>
  </h3>
  </td><td align="right" valign="top"
    ><span class="codelink"><a href="web2py.gluon.tools-pysrc.html#PluginManager.__new__">source&nbsp;code</a></span>&nbsp;
    </td>
  </table>
  
  
  <dl class="fields">
    <dt>Returns:</dt>
        <dd><pre class="literalblock">
a new object with type S, a subtype of T

</pre></dd>
    <dt>Overrides:
      object.__new__
        <dd><em class="note">(inherited documentation)</em></dd>
    </dt>
  </dl>
</td></tr></table>
</div>
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  <h3 class="epydoc"><span class="sig"><span class="sig-name">__init__</span>(<span class="sig-arg">self</span>,
        <span class="sig-arg">plugin</span>=<span class="sig-default">1</span>,
        <span class="sig-arg">**defaults</span>)</span>
    <br /><em class="fname">(Constructor)</em>
  </h3>
  </td><td align="right" valign="top"
    ><span class="codelink"><a href="web2py.gluon.tools-pysrc.html#PluginManager.__init__">source&nbsp;code</a></span>&nbsp;
    </td>
  </table>
  
  x.__init__(...) initializes x; see x.__class__.__doc__ for 
  signature
  <dl class="fields">
    <dt>Overrides:
      object.__init__
        <dd><em class="note">(inherited documentation)</em></dd>
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