[Python-bugs-list] [ python-Bugs-728511 ] Opening a nonexistent tar file in mode r:bz2 seg faults

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Bugs item #728511, was opened at 2003-04-27 12:37
Message generated for change (Comment added) made by logistix
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Category: Python Library
Group: Python 2.3
Status: Open
Resolution: None
Priority: 5
Submitted By: Gary Herron (herron)
Assigned to: Nobody/Anonymous (nobody)
Summary: Opening a nonexistent tar file in mode r:bz2 seg faults

Initial Comment:
 
Running Python 2.3 beta 1 on a Linux (RH9) system, I get a 
segmentation fault when I mistakenly open a nonexistent 
file in mode 
"r:bz2". 
 
>>> import tarfile 
>>> tar = tarfile.open("non-existent-file", "r:bz2") 
Segmentation fault 
 
If the mode is "r:gz" then the result is (properly) 
  No such file ... 
 
And, of course, all is fine if the file *does* exist. 
 
 

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Comment By: logistix (logistix)
Date: 2003-04-27 18:27

Message:
Logged In: YES 
user_id=699438

bz2module's cleanup code used a Py_DECREF when it 
should've used an Py_XDECREF.

Patch 728656 posted.

Error now replies "Read Error: not a bzip2 file"



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Comment By: Gary Herron (herron)
Date: 2003-04-27 13:21

Message:
Logged In: YES 
user_id=395736

Similarily on windows,  with the same code, on gets an 
Application Error popup with the message 
 
  The instruction at "..." referenced memory at "0x00000000". ... 
 
 

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