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Viewing changes to tools/win32/file_version.py

  • Committer: John Arbash Meinel
  • Date: 2010-01-12 22:51:31 UTC
  • mto: This revision was merged to the branch mainline in revision 4955.
  • Revision ID: john@arbash-meinel.com-20100112225131-he8h411p6aeeb947
Delay grabbing an output stream until we actually go to show a diff.

This makes the test suite happy, but it also seems to be reasonable.
If we aren't going to write anything, we don't need to hold an
output stream open.

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#!/usr/bin/python
 
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"""Get file version.
 
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Written by Alexander Belchenko, 2006
 
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"""
 
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import os
 
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import pywintypes   # from pywin32 (http://pywin32.sf.net)
 
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import win32api     # from pywin32 (http://pywin32.sf.net)
 
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__all__ = ['get_file_version', 'FileNotFound', 'VersionNotAvailable']
 
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__docformat__ = "restructuredtext"
 
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class FileNotFound(Exception):
 
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    pass
 
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class VersionNotAvailable(Exception):
 
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    pass
 
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def get_file_version(filename):
 
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    """Get file version (windows properties)
 
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    :param  filename:   path to file
 
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    :return:            4-tuple with 4 version numbers
 
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    """
 
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    if not os.path.isfile(filename):
 
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        raise FileNotFound
 
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    try:
 
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        version_info = win32api.GetFileVersionInfo(filename, '\\')
 
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    except pywintypes.error:
 
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        raise VersionNotAvailable
 
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    return (divmod(version_info['FileVersionMS'], 65536) +
 
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            divmod(version_info['FileVersionLS'], 65536))