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<div class=Section1>

<p class=MsoNormal><span class=SpellE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Hi</span></font></span><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'> list,<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>I tested the example given in
the documentation&#8230; with the following code:<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>class</span></font></span><font
size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
mso-ansi-language:EN-GB'> <span class=SpellE>UdpServer</span> (<span
class=SpellE>DatagramProtocol</span>):<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span><span class=GramE>def</span>
<span class=SpellE>datagramReceived</span>(self, request, address):<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
class=GramE>print</span> '<span class=SpellE>udp</span> <span class=SpellE>recieved:'+request</span><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
class=GramE>response</span> = '\x02'<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
class=SpellE><span class=GramE>self.transport.write</span></span><span
class=GramE>(</span><span class=SpellE>response,address</span>)<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><span class=SpellE><span class=GramE><font size=2
face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
mso-ansi-language:EN-GB'>reactor.listenUDP</span></font></span></span><span
class=GramE><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;
font-family:Arial;mso-ansi-language:EN-GB'>(</span></font></span><span
class=SpellE><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;
font-family:Arial;mso-ansi-language:EN-GB'>serverPort</span></font></span><font
size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
mso-ansi-language:EN-GB'>, <span class=SpellE>UdpServer</span>())<o:p></o:p></span></font></p>

<p class=MsoNormal><span class=SpellE><span class=GramE><font size=2
face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
mso-ansi-language:EN-GB'>reactor.run</span></font></span></span><span
class=GramE><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;
font-family:Arial;mso-ansi-language:EN-GB'>()</span></font></span><font size=2
face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
mso-ansi-language:EN-GB'><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>if</span></font></span><font
size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
mso-ansi-language:EN-GB'> I send a <span class=SpellE>udp</span> packet to this
server I get the following exception:<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><span class=SpellE><span class=GramE><font size=2
face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
mso-ansi-language:EN-GB'>udp</span></font></span></span><font size=2
face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
mso-ansi-language:EN-GB'> <span class=SpellE>recieved:a</span><o:p></o:p></span></font></p>

<p class=MsoNormal><span class=SpellE><font size=2 face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>Traceback</span></font></span><font
size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
mso-ansi-language:EN-GB'> (most recent call last):<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><span
style='mso-spacerun:yes'>&nbsp; </span>File
&quot;C:\Python22\Lib\site-packages\twisted\internet\default.py&quot;, line
473, in<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><span
style='mso-spacerun:yes'>&nbsp;</span><span class=SpellE><span class=GramE>doSelect</span></span><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span>_<span class=SpellE><span
class=GramE>logrun</span></span><span class=GramE>(</span>selectable, _<span
class=SpellE>drdw</span>, selectable, method, <span class=SpellE>dict</span>)<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><span
style='mso-spacerun:yes'>&nbsp; </span>File
&quot;C:\Python22\Lib\site-packages\twisted\python\log.py&quot;, line 64, in <span
class=SpellE>callWi</span><o:p></o:p></span></font></p>

<p class=MsoNormal><span class=SpellE><span class=GramE><font size=2
face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
mso-ansi-language:EN-GB'>thLogger</span></font></span></span><font size=2
face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
mso-ansi-language:EN-GB'><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span><span class=SpellE><span
class=GramE>callWithContext</span></span><span class=GramE>(</span>{&quot;system&quot;:
<span class=SpellE>lp</span>}, <span class=SpellE>func</span>, *<span
class=SpellE>args</span>, **<span class=SpellE>kw</span>)<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><span
style='mso-spacerun:yes'>&nbsp; </span>File
&quot;C:\Python22\Lib\site-packages\twisted\python\log.py&quot;, line 51, in <span
class=SpellE>callWi</span><o:p></o:p></span></font></p>

<p class=MsoNormal><span class=SpellE><span class=GramE><font size=2
face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
mso-ansi-language:EN-GB'>thContext</span></font></span></span><font size=2
face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
mso-ansi-language:EN-GB'><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span><span class=GramE>return</span>
<span class=SpellE>context.call</span>({<span class=SpellE>ILogContext</span>: <span
class=SpellE>newCtx</span>}, <span class=SpellE>func</span>, *<span
class=SpellE>args</span>, **<span class=SpellE>kw</span>)<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><span
style='mso-spacerun:yes'>&nbsp; </span>File
&quot;C:\Python22\Lib\site-packages\twisted\python\context.py&quot;, line 32,
in ca<o:p></o:p></span></font></p>

<p class=MsoNormal><span class=SpellE><span class=GramE><font size=2
face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
mso-ansi-language:EN-GB'>llWithContext</span></font></span></span><font size=2
face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
mso-ansi-language:EN-GB'><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span><span class=GramE>return</span>
<span class=SpellE>func</span>(*<span class=SpellE>args</span>,**<span
class=SpellE>kw</span>)<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>--- &lt;<span class=GramE>exception</span>
caught here&gt; ---<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><span
style='mso-spacerun:yes'>&nbsp; </span>File &quot;C:\Python22\Lib\site-packages\twisted\internet\default.py&quot;,
line 482, in<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><span
style='mso-spacerun:yes'>&nbsp;</span>_<span class=SpellE>doReadOrWrite</span><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span><span class=GramE>why</span>
= <span class=SpellE>getattr</span>(selectable, method)()<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><span
style='mso-spacerun:yes'>&nbsp; </span>File
&quot;C:\Python22\Lib\site-packages\twisted\internet\udp.py&quot;, line 105, in
<span class=SpellE>doR</span><o:p></o:p></span></font></p>

<p class=MsoNormal><span class=SpellE><span class=GramE><font size=2
face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
mso-ansi-language:EN-GB'>ead</span></font></span></span><font size=2
face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
mso-ansi-language:EN-GB'><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span><span class=GramE>data</span>,
<span class=SpellE>addr</span> = <span class=SpellE>self.socket.recvfrom</span>(<span
class=SpellE>self.maxPacketSize</span>)<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><span
style='mso-spacerun:yes'>&nbsp; </span>File &quot;&lt;string&gt;&quot;, line 1,
in <span class=SpellE>recvfrom</span><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><span class=SpellE><font size=2 face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>socket.error</span></font></span><font
size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
mso-ansi-language:EN-GB'>: (10035, '<span class=GramE>The</span> socket
operation could not complete without blocking')<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>I am on win32 and using
python 2.2 and this is twisted 1.0.5&#8230; What am I doing wrong?<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>Cheers<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>digi<o:p></o:p></span></font></p>

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