import win32api
def getFileVersion(file_name):
    info = win32api.GetFileVersionInfo(file_name, os.sep)
    ms = info['FileVersionMS']
    ls = info['FileVersionLS']
    version = '%d.%d.%d.%04d' % (win32api.HIWORD(ms), win32api.LOWORD(ms), win32api.HIWORD(ls), win32api.LOWORD(ls))
    return version