Patches item #1638243, was opened at 2007-01-17 22:52
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Category: Parser/Compiler
Group: Python 2.5
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: kirat (kirat)
Assigned to: Nobody/Anonymous (nobody)
Summary: compiler.pycodegen causes crashes when compiling 'with'
Initial Comment:
The compiler package in the python library is missing a LOAD/DELETE just before
the WITH_CLEANUP instruction.
Also transformer isn't creating the with_var as an assignment.
So the following little code snippet will crash if you compile and run it with
compiler.compile()
class TrivialContext:
def __enter__(self): return self
def __exit__(self,*exc_info): pass
def f():
with TrivialContext() as tc:
return 1
f()
The fix is just a few lines. I'm enclosing a patch against the python 2.5
source.
I've also added the above as a test case to the test_compiler.py file.
regards,
-Kirat
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