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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D">Is there a DBNull value somewhere in your object? DBNull is a singleton and I’d guess we’d need to add some custom logic which says the way we deserialize
it is by pulling the singleton from DBNull.Value. You can probably use copy_reg.pickle to register something which will handle objects of type DBNull that just returns DBNull.Value.<o:p></o:p></span></p>
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color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> users-bounces@lists.ironpython.com [mailto:users-bounces@lists.ironpython.com]
<b>On Behalf Of </b>Pablo Dalmazzo<br>
<b>Sent:</b> Thursday, June 10, 2010 7:57 AM<br>
<b>To:</b> IronPython Mailing list<br>
<b>Subject:</b> [IronPython] deepcopy<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif"">Hi there,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif""><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif"">Im getting this error in the copy module. I moved the copy module from the IronPython 2.6 installation to work with<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif"">IronPython 2.0 for some compatibility problem I had with IronPython 2.6 dll with another dll we use. <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif""><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif"">The only difference I see between the cases which works and those which doesnt are, in the succesful case it is a custom class object "alone", and in the error case is the
deepcopy of a custom class object which contains a list with other instances of that object.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif"">Could that have anything to do with the problem? Is that a limitation of the copy module in Python or it should work?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif""><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif"">error description: <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif""><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:10.0pt;
font-family:"Verdana","sans-serif"">No se puede encontrar el método 'DBNull..ctor'.<br>
<br>
<b>Error de código fuente:</b> <o:p></o:p></span></p>
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<pre>Línea 322: args = deepcopy(args, memo)<o:p></o:p></pre>
<pre>Línea 323: <o:p></o:p></pre>
<pre><span style="color:red">Línea 324: y = callable(*args)<o:p></o:p></span></pre>
<pre>Línea 325:<o:p></o:p></pre>
<pre>Línea 326: memo[id(x)] = y<o:p></o:p></pre>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif""><br>
<b>Archivo de origen: </b>/SistemaVentaBaseIP2/App_Script/copy.py<b> </b> <o:p>
</o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif"">Hotmail es más seguro. Con el Filtro Anti Spam tu cuenta está mucho más protegida.
<a href="http://www.descubrehotmail.com/anti-spam.asp%20" target="_new">Ver más</a><o:p></o:p></span></p>
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