[ python-Bugs-1156179 ] Calls from VBScript clobber passed args

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Bugs item #1156179, was opened at 2005-03-03 15:42
Message generated for change (Comment added) made by rupole
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Category: Windows
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Erik Rose (grincheroo)
Assigned to: Nobody/Anonymous (nobody)
Summary: Calls from VBScript clobber passed args

Initial Comment:
I'm using Python 2.4.0 and VBScript under ASP on IIS 5. If I call a 
Python function from VBScript AND pass a local var as the first 
parameter AND don't use the return value, then the local var I 
passed in is, upon the function's return, set to Null.

If I store the return value (even if there isn't one) OR pass the return 
value to another function, this doesn't happen. I'm attaching some 
snippets that demonstrate and work around the bug.



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Comment By: Roger Upole (rupole)
Date: 2006-09-01 16:08

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I think this is actually a vbscript behaviour.  If not, 
it's a bug in Pywin32's Active Scripting implementation.  
Either way, this shoud probably be closed as third-party.


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Comment By: Erik Rose (grincheroo)
Date: 2005-03-08 10:41

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Let me refine the description a bit: the bug doesn't clobber only a local var 
passed as the *first* param; it clobbers the first local var passed, whether 
it's the first param or not. For example,

call go(x)
clobbers x, as I've said before, but...

call aTwoParamFunction("somethingStatic", x, y)
clobbers x as well! y is not clobbered.

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Comment By: Erik Rose (grincheroo)
Date: 2005-03-08 10:39

Message:
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Let me refine the description a bit: the bug doesn't clobber only a local var 
passed as the *first* param; it clobbers the first local var passed, whether 
it's the first param or not. For example,

call go(x)
clobbers x, as I've said before, but...

call aTwoParamFunction("somethingStatic", x, y)
clobbers x as well! y is not clobbered.

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Comment By: Erik Rose (grincheroo)
Date: 2005-03-08 10:39

Message:
Logged In: YES 
user_id=888812

Let me refine the description a bit: the bug doesn't clobber only a local var 
passed as the *first* param; it clobbers the first local var passed, whether 
it's the first param or not. For example,

call go(x)
clobbers x, as I've said before, but...

call aTwoParamFunction("somethingStatic", x, y)
clobbers x as well! y is not clobbered.

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1156179&group_id=5470