[Python-bugs-list] [ python-Bugs-549038 ] cgitb variable dumps a little flaky
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Sat, 02 Nov 2002 19:28:26 -0800
Bugs item #549038, was opened at 2002-04-26 08:11
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Category: Python Library
Group: Python 2.3
Status: Open
Resolution: Works For Me
Priority: 5
Submitted By: Jon Ribbens (jribbens)
Assigned to: Ka-Ping Yee (ping)
Summary: cgitb variable dumps a little flaky
Initial Comment:
First off, easy problem: lookup() should look in
frame.f_globals["__builtins__"] also. Along the same
lines, I am not sure if lookup works properly with
nested scopes, but since I don't use nested scopes in
any of my code this is not a problem for me ;-)
Secondly, the parsing in scanvars() is somewhat hacky.
For example, given the following line:
foo(open(filename).read())
it will think the following variables exist:
foo
open
filename
).read
Obviously this last one is incorrect. I am not sure if
this is easy to fix or not.
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>Comment By: Neal Norwitz (nnorwitz)
Date: 2002-11-02 22:28
Message:
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Jon, is this fixed? Can it be closed? If not, what do you
think needs to be done?
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Comment By: Jon Ribbens (jribbens)
Date: 2002-06-26 06:28
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I'm not quite sure why you were unable to reproduce
the ").read" bit. Try the following code:
import cgitb; cgitb.enable()
filename = "foo"
foo(open(filename).read())
The output includes:
foo undefined, open undefined, filename = 'foo', ).read
undefined
Do you get something different?
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Comment By: Ka-Ping Yee (ping)
Date: 2002-06-26 03:11
Message:
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The lookup function looks in frame.f_locals, which does the right thing
with respect to nested scopes as far as i can tell.
I tested the parser and wasn't able to reproduce the problem you described.
Thanks for the bug report. I have committed a change that adds the
lookup in __builtins__.
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Comment By: Guido van Rossum (gvanrossum)
Date: 2002-04-28 20:50
Message:
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Nobody except Ka-Ping Ping understands the code in cgitb.py,
so I suggest that you track him down and get him to look at
this bug report. In the past I've performed this service
myself but I'm getting tired of it.
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