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<DIV dir=ltr align=left><SPAN class=252055902-07092005><FONT face=Verdana
size=2>Thanks for he repro and bug report, Jacques, the bug you see is caused by
missing implementation of closures in IronPython. The closure implementation is
on our to-do list.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=252055902-07092005><FONT face=Verdana
size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=252055902-07092005><FONT face=Verdana
size=2>Thanks!</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=252055902-07092005><FONT face=Verdana
size=2>Martin</FONT></SPAN></DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B>
users-ironpython.com-bounces@lists.ironpython.com
[mailto:users-ironpython.com-bounces@lists.ironpython.com] <B>On Behalf Of
</B>J. de Hooge<BR><B>Sent:</B> Friday, September 02, 2005 7:18 AM<BR><B>To:</B>
users-ironpython.com@lists.ironpython.com<BR><B>Subject:</B> [IronPython] self
not known in lambda function<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'"># Hi,</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">#</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'"># Might this be a small bug
in IronPython? 'self' is not known inside the definition of a lambda
function</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'"># I tried to insulate the
problem in a small (admittedly pointless) program, not to bother you with bulky
app. code</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'"># I am using IronPython
0.9.1</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">#</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><<AN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'"># Kind
regards</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'"># Jacques de
Hooge info@geatec.com</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">#</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'"># This example will print the
following:</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">#
======================================</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">#</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">#
workaround</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'"># Traceback (most recent call
last):</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'"># at
__main__.Initialize() in C:\activ_dell\prog\fun\src\funDebug.py:line
29</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'"># at
__main__.lamda$1$f5()</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'"># NameError: name 'self' not
defined</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">#</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">#
======================================</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">class
WorkAround:</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">
def __init__ (self):</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">
global this</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">
this = self</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">
self.setPrintWithoutParams (lambda: this.printWithParams
('workaround'))</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">
</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">
def printWithParams (self, text):</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">
print text</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">
</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">
def setPrintWithoutParams (self, printWithoutParams):</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">
self.printWithoutParams = printWithoutParams </SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">workAround = WorkAround
()</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">workAround.printWithoutParams
()</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">class
Problem:</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">
def __init__ (self):</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">
self.setPrintWithoutParams (lambda: self.printWithParams
('problem'))</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">
</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">
def printWithParams (self, text):</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">
print text</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">
</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">
def setPrintWithoutParams (self, printWithoutParams):</SPAN></></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">
self.printWithoutParams = printWithoutParams </SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">problem = Problem
()</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'">problem.printWithoutParams
()</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Courier New'"></SPAN></FONT> </P>
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