id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
21059	TypeError when trying to use python magic in Django shell	murphys.irish.stout@…	grue	"Running:
Python version 2.7.3
Django version 1.5.2
I have a django view that indirectly makes use of python's magic library (basically a ctypes wrapper with access to libmagic) which results in the following error

Traceback (most recent call last):
  File ""<console>"", line 1, in <module>
  File ""/usr/lib/python2.7/dist-packages/magic.py"", line 170, in load
    return _load(self._magic_t, filename)
ArgumentError: argument 2: <type 'exceptions.TypeError'>: expected CString instance instead of str

In isolation the error is repeatable using the following steps:

./manage.py shell
>>> import magic
>>> m = magic.open(magic.MAGIC_NONE)
>>> m.load(""/usr/share/file/magic.mgc"")
Traceback (most recent call last):
  File ""<console>"", line 1, in <module>
  File ""/usr/lib/python2.7/dist-packages/magic.py"", line 170, in load
    return _load(self._magic_t, filename)
ArgumentError: argument 2: <type 'exceptions.TypeError'>: expected CString instance instead of str


Issuing the same commands from a standard python shell does not result in the same error

Python 2.7.3 (default, Jan  2 2013, 13:56:14) 
[GCC 4.7.2] on linux2
Type ""help"", ""copyright"", ""credits"" or ""license"" for more information.
>>> import magic
>>> m=magic.open(magic.MAGIC_NONE)
>>> m.load(""/usr/share/file/magic.mgc"")
0

Google searches for the extact typeerror have proved useless, I even attempted to modify magic.py and cast the filename with a ctypes.create_string_buffer() call (AFAIK there is no ctypes.CString type) but that still failed.

The same code works fine running
Python v. 2.7.3
Django v. 1.4.3

Thanks in advance"	Bug	closed	Uncategorized	1.5	Normal	invalid	magic django	murphys.irish.stout@…	Unreviewed	0	0	0	0	0	0