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<?xml version="1.0" encoding="iso-8859-1"?>
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<title>Pyblio.Callback</title>
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<a href="Pyblio-module.html">Package&nbsp;Pyblio</a> ::
Module&nbsp;Callback
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<!-- =========== START OF MODULE DESCRIPTION =========== -->
<h2 class="module">Module Pyblio.Callback</h2>
<p>A generic callback mechanism.</p>
Classes that wish to emit events inherit from <a
href="Pyblio.Callback.Publisher-class.html"
class="link"><code>Publisher</code></a>. Interested clients call the <a
href="Pyblio.Callback.Publisher-class.html#register"
class="link"><code>Publisher.register</code></a> method on the object.
The publisher then calls <a
href="Pyblio.Callback.Publisher-class.html#emit"
class="link"><code>Publisher.emit</code></a> to emit the event.
<hr/>
<!-- =========== START OF CLASSES =========== -->
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<tr bgcolor="#70b0f0" class="summary">
<th colspan="2">Classes</th></tr>
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<b><a href="Pyblio.Callback.Publisher-class.html"><code>Publisher</code></a></b></td>
<td>Base class for objects that wish to emit signals to registered
clients.</td></tr>
<tr><td width="15%">
<b><a href="Pyblio.Callback.WeakMethodBound-class.html"><code>WeakMethodBound</code></a></b></td>
<td>A weak reference on a bound method</td></tr>
<tr><td width="15%">
<b><a href="Pyblio.Callback.WeakMethodFree-class.html"><code>WeakMethodFree</code></a></b></td>
<td>A weak reference on an unbound method</td></tr>
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<!-- =========== START OF EXCEPTIONS =========== -->
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<th colspan="2">Exceptions</th></tr>
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<b><a href="Pyblio.Callback.WeakError-class.html"><code>WeakError</code></a></b></td>
<td>Invoked when a function call is performed on a destroyed method</td></tr>
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<!-- =========== START OF FUNCTION SUMMARY =========== -->
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<th colspan="2">Function Summary</th></tr>
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<td><code><a name="weakmethod"></a><span class="summary-sig"><span class="summary-sig-name">weakmethod</span>(<span class=summary-sig-arg>f</span>)</span></code>
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<td align="left"><font size="-2">Generated by Epydoc 2.1 on Sun Sep 24 23:52:42 2006</font></td>
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