'[PyKDE] Possible PyQt bug??(simple test file attached)'

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List: pykde
Subject: [PyKDE] Possible PyQt bug??(simple test file attached)
From: "Huaicai Mo" <huaicai () nanorex ! com>
Date: 2005-08-26 23:40:15
Message-ID: 200508262340.BAA19602 () mail ! bi ! fraunhofer ! de
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For some reason, my description for the problem was removed somehow in my
previous post. Only the test file was kept. Again, here is the description:

Hello,

For the list of QFileInfo objects returned by entryInfoList(), if I pass the
object instead of its file name (a string) to a receiver. Later, if I try to
get its file name from the object through the receiver, Python will crash.
On the other hand, if I pass its file name to the receiver, then there is no
problem.  My guess is that the list of QFileInfo objects has been destroyed
even though other object still refers to them.

The test code is modified from the "Directory Browser" example code coming
with PyQt. You can test the above 2 cases by changing line 47(marked in
code) into:

        passByName = 0  

or 

        passByName = 1 

Use your mouse to select any file in the browser window.  If you use
"passByName=0", the program will crash, otherwise, it will print the file
name that you selected.

BTW, I'm using Python 2.3.4, Qt 3.3.3, PyQt  3.12

Huaicai

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<div class=Section1>

For some reason, my description for the problem was removed
somehow in my previous post. Only the test file was kept. Again, here is the
description:<o:p></o: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 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 style='font-size:10.0pt;
font-family:Arial'>Hello,<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>

For the list of QFileInfo objects returned by
entryInfoList(), if I pass the object instead of its file name (a string) to a
receiver. Later, if I try to get its file name from the object through the
receiver, Python will crash. On the other hand, if I pass its file name to the
receiver, then there is no problem.&nbsp; My guess is that the list of
QFileInfo objects has been destroyed even though other object still refers to
them.<o:p></o: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>

The test code is modified from the &#8220;Directory
Browser&#8221; example code coming with PyQt. You can test the above 2 cases by
changing line 47(marked in code) into:<o:p></o:p>

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

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

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; passByName = 1 \
<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>

Use your mouse to select any file in the browser window. &nbsp;If
you use &#8220;passByName=0&#8221;, the program will crash, otherwise, it will
print the file name that you selected.<o:p></o: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 style='font-size:10.0pt;
font-family:Arial'>BTW, I&#8217;m using Python 2.3.4, Qt 3.3.3, PyQt \
&nbsp;3.12<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 style='font-size:10.0pt;
font-family:Arial'>Huaicai<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 style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

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