Bugs item #1704156, was opened at 2007-04-20 10:21
Message generated for change (Comment added) made by gustaebel
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Category: Python Library
Group: Python 2.5
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: K. C. Wong (dvusboy)
Assigned to: Lars Gustäbel (gustaebel)
Summary: TarFile.addfile() throws a struct.error
Initial Comment:
When adding a file to a TarFile instance using addfile(), if the file paths
(name and arcname) are unicode strings, then a struct.error will the raised.
Python versions prior to 2.5 do not show this behaviour.
Assuming the current directory has a file name 'mac.txt', here is an
interactive session that shows the problem:
Python 2.5 (r25:51908, Apr 18 2007, 19:06:57)
[GCC 3.4.6 20060404 (Red Hat 3.4.6-3)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import tarfile
>>> t=tarfile.open('test.tar', 'w')
>>> i=t.gettarinfo(u'mac.txt', u'mac.txt')
>>> t.addfile(i, file(u'mac.txt', 'r'))
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.5/tarfile.py", line 1422, in addfile
self.fileobj.write(tarinfo.tobuf(self.posix))
File "/usr/lib/python2.5/tarfile.py", line 871, in tobuf
buf = struct.pack("%ds" % BLOCKSIZE, "".join(parts))
File "/usr/lib/python2.5/struct.py", line 63, in pack
return o.pack(*args)
struct.error: argument for 's' must be a string
----------------------------------------------------------------------
>Comment By: Lars Gustäbel (gustaebel)
Date: 2007-04-20 21:25
Message:
Logged In: YES
user_id=642936
Originator: NO
tarfile.py was never guaranteed to work correctly with unicode filenames.
The fact that this works with Python < 2.5 is purely accidental.
You can work around this (sticking to your example):
i = t.gettarinfo(u'mac.txt', 'mac.txt')
or:
i = t.gettarinfo('mac.txt')
----------------------------------------------------------------------
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