Python windows File Version attribute

Question

Hi,

Last time I asked a similar question but that was about svn related versioning info. Now I am wondering how to query windows "File version" attribute about eg. a dll. I payed attention to wmi and win32file modules as well without success. Thanks U in advance. D.

Answer 1

You can use the filever.exe tool to do that. Here'a thread that explains how to do it from Python. And here's the KB article with details about the tool.

Answer 2

I found this solution at "timgolden" site. Works fine.

from win32api import GetFileVersionInfo, LOWORD, HIWORD

def get_version_number (filename):
  info = GetFileVersionInfo (filename, "\\")
  ms = info['FileVersionMS']
  ls = info['FileVersionLS']
  return HIWORD (ms), LOWORD (ms), HIWORD (ls), LOWORD (ls)

if __name__ == '__main__':
  import os
  filename = os.environ["COMSPEC"]
  print ".".join ([str (i) for i in get_version_number (filename)])

Answer 3

Better to add a try/except in case the file has no version number attribute.

filever.py

from win32api import GetFileVersionInfo, LOWORD, HIWORD

def get_version_number (filename):
    try:
     info = GetFileVersionInfo (filename, "\\")
     ms = info['FileVersionMS']
     ls = info['FileVersionLS']
     return HIWORD (ms), LOWORD (ms), HIWORD (ls), LOWORD (ls)
    except:
     return 0,0,0,0

if __name__ == '__main__':
  import os
  filename = os.environ["COMSPEC"]
  print ".".join ([str (i) for i in get_version_number (filename)])

yourscript.py:

import os,filever

myPath="C:\\path\\to\\check"

for root, dirs, files in os.walk(myPath):
    for file in files:
     file = file.lower() # Convert .EXE to .exe so next line works
     if (file.count('.exe') or file.count('.dll')): # Check only exe or dll files
      fullPathToFile=os.path.join(root,file)
      major,minor,subminor,revision=filever.get_version_number(fullPathToFile)
      print "Filename: %s \t Version: %s.%s.%s.%s" % (file,major,minor,subminor,revision)

Cheers!

Answer 4

You can use the pyWin32 module from http://sourceforge.net/projects/pywin32/:

from win32com.client import Dispatch

ver_parser = Dispatch('Scripting.FileSystemObject')
info = ver_parser.GetFileVersion(path)

if info == 'No Version Information Available':
    info = None