#!/usr/bin/env python
# -*- coding: utf8 -*-
__version__ = '$Id: which_dll.py 2247 2014-10-06 09:19:53Z mn $'
r"""
Returns the pathnames of the file (.exe or .dll)
which would be loaded/executed in the current environment
it uses some dirs from configuration (SystemDir, WindowsDir)
and dirs from PATH.
To obtain version info it uses code from:
http://pywin32.hg.sourceforge.net/hgweb/pywin32/pywin32/file/tip/win32/Demos/getfilever.py
Example of usage:
c:\tools\pyscripts\scripts>which_dll.py libpq.dll
2008-06-09 02:58:26 167936 [b] c:\postgresql\8.3\bin\libpq.dll ver:8.3.3.8160
2008-03-17 01:47:50 167936 [b] c:\tools\libpq.dll ver:8.3.1.8075
2008-03-17 01:47:50 167936 [b] g:\public\libpq.dll ver:8.3.1.8075
trying to load "libpq.dll" ...
c:\postgresql\8.3\bin\libpq.dll loaded
Author: Michal Niklas
"""
USAGE = 'Usage:\n\twhich_dll.py dll_name/exe_name'
import sys
import time
import os
import os.path
import win32api
def get_file_ver(fname):
# see: http://pywin32.hg.sourceforge.net/hgweb/pywin32/pywin32/file/tip/win32/Demos/getfilever.py
result = []
try:
ver_strings = ('ProductVersion', 'FileVersion')
pairs = win32api.GetFileVersionInfo(fname, '\\VarFileInfo\\Translation')
## \VarFileInfo\Translation returns list of available (language, codepage) pairs that can be used to retreive string info
## any other must be of the form \StringfileInfo\%04X%04X\parm_name, middle two are language/codepage pair returned from above
for lang, codepage in pairs:
#print 'lang: ', lang, 'codepage:', codepage
for ver_string in ver_strings:
str_info = u'\\StringFileInfo\\%04X%04X\\%s' % (lang, codepage, ver_string)
result.append('%s %s' % (ver_string, win32api.GetFileVersionInfo(fname, str_info).strip()))
except:
pass
return result
def get_file_info(file_path):
"""returns string with file name, its modification time and size"""
s = os.stat(file_path)
f_date = time.strftime("%Y-%m-%d %H:%M:%S", time.gmtime(s[8]))
f_size = s[6]
fv = ''
ver_info = get_file_ver(file_path)
if ver_info:
fv = '\t%s' % ('; '.join(ver_info))
return "%s\t%8s [b]\t%s%s" % (f_date, f_size, file_path, fv)
def which(fname):
"""searches fname in PATH dirs"""
if not which_file(fname):
if '.' not in fname:
# no extension, so we try some "executable" extensions
for ext in ('.exe', '.com', '.bat', '.cmd'):
fname2 = fname + ext
if which_file(fname2):
break
def which_file(fname):
"""prints paths for fname where fname can be found,
in case of .dll loads it"""
files = []
path = win32api.GetEnvironmentVariable('PATH')
# try paths as described in MSDN
dirs = [os.getcwd(), win32api.GetSystemDirectory(), win32api.GetWindowsDirectory()] + path.split(';')
dirs_norm = []
dirs_l = []
for d in dirs:
dn = d.lower()
if dn not in dirs_l:
dirs_l.append(dn)
dirs_norm.append(d)
for d in dirs_norm:
fname2 = os.path.join(d, fname)
if os.path.exists(fname2):
if fname2 not in files:
files.append(fname2)
if files:
print('\n'.join([get_file_info(f) for f in files]))
h = 0
if fname.lower().endswith('.dll'):
print('\ttrying to load "%s" ...' % (fname))
try:
h = win32api.LoadLibrary(fname)
if h:
dll_name = win32api.GetModuleFileName(h)
print('\t%s loaded' % (dll_name))
except:
print('\tCannot load "%s" !!!' % (fname))
def main():
if '--version' in sys.argv:
print(__version__)
return
elif '--help' in sys.argv:
print(USAGE)
return
elif '--test' in sys.argv:
which('libpq.dll')
which('libeay32.dll')
which('msvcr71.dll')
which('ssleay32.dll')
which('cmd.exe')
which('grep')
which('iclit09b.dll')
which('non_existient.dll')
return
if len(sys.argv) < 2:
print(USAGE)
else:
which(sys.argv[1])
main()
Diff to Previous Revision
--- revision 6 2009-07-01 02:19:19
+++ revision 7 2014-10-06 09:22:53
@@ -1,19 +1,15 @@
-#!/usr/bin/python
-# -*- coding: cp1250 -*-
-__version__ = '$Id: which_dll.py 516 2008-10-03 08:51:44Z mn $'
+#!/usr/bin/env python
+# -*- coding: utf8 -*-
+__version__ = '$Id: which_dll.py 2247 2014-10-06 09:19:53Z mn $'
-"""
+r"""
Returns the pathnames of the file (.exe or .dll)
which would be loaded/executed in the current environment
it uses some dirs from configuration (SystemDir, WindowsDir)
and dirs from PATH.
-It uses code from Python Cookbook recipe 67682 by Joshua W. Biagio from:
-http://code.activestate.com/recipes/67682/
-so it could also show version info. Simply:
--download it,
--save as version.py in PYTHONPATH directory
--comment line "print 'No Version Information Available'"
+To obtain version info it uses code from:
+http://pywin32.hg.sourceforge.net/hgweb/pywin32/pywin32/file/tip/win32/Demos/getfilever.py
Example of usage:
c:\tools\pyscripts\scripts>which_dll.py libpq.dll
@@ -35,35 +31,40 @@
import win32api
-VERCHECKER_ERR = 0
+def get_file_ver(fname):
+ # see: http://pywin32.hg.sourceforge.net/hgweb/pywin32/pywin32/file/tip/win32/Demos/getfilever.py
+ result = []
+ try:
+ ver_strings = ('ProductVersion', 'FileVersion')
+ pairs = win32api.GetFileVersionInfo(fname, '\\VarFileInfo\\Translation')
+ ## \VarFileInfo\Translation returns list of available (language, codepage) pairs that can be used to retreive string info
+ ## any other must be of the form \StringfileInfo\%04X%04X\parm_name, middle two are language/codepage pair returned from above
+ for lang, codepage in pairs:
+ #print 'lang: ', lang, 'codepage:', codepage
+ for ver_string in ver_strings:
+ str_info = u'\\StringFileInfo\\%04X%04X\\%s' % (lang, codepage, ver_string)
+ result.append('%s %s' % (ver_string, win32api.GetFileVersionInfo(fname, str_info).strip()))
+ except:
+ pass
+ return result
def get_file_info(file_path):
"""returns string with file name, its modification time and size"""
- global VERCHECKER_ERR
s = os.stat(file_path)
f_date = time.strftime("%Y-%m-%d %H:%M:%S", time.gmtime(s[8]))
f_size = s[6]
fv = ''
- try:
- if VERCHECKER_ERR == 0:
- import verchecker
- try:
- fv = '\tver:' + verchecker.calcversioninfo(file_path)
- except:
- pass
- except:
- if VERCHECKER_ERR == 0:
- print "\tNo verchecker.py module! Look at: http://code.activestate.com/recipes/67682/"
- VERCHECKER_ERR = 1
+ ver_info = get_file_ver(file_path)
+ if ver_info:
+ fv = '\t%s' % ('; '.join(ver_info))
return "%s\t%8s [b]\t%s%s" % (f_date, f_size, file_path, fv)
-
def which(fname):
"""searches fname in PATH dirs"""
if not which_file(fname):
- if not '.' in fname:
+ if '.' not in fname:
# no extension, so we try some "executable" extensions
for ext in ('.exe', '.com', '.bat', '.cmd'):
fname2 = fname + ext
@@ -78,31 +79,38 @@
path = win32api.GetEnvironmentVariable('PATH')
# try paths as described in MSDN
dirs = [os.getcwd(), win32api.GetSystemDirectory(), win32api.GetWindowsDirectory()] + path.split(';')
+ dirs_norm = []
+ dirs_l = []
for d in dirs:
+ dn = d.lower()
+ if dn not in dirs_l:
+ dirs_l.append(dn)
+ dirs_norm.append(d)
+ for d in dirs_norm:
fname2 = os.path.join(d, fname)
if os.path.exists(fname2):
- if not fname2 in files:
+ if fname2 not in files:
files.append(fname2)
if files:
- print '\n'.join([get_file_info(f) for f in files])
+ print('\n'.join([get_file_info(f) for f in files]))
h = 0
if fname.lower().endswith('.dll'):
- print '\ttrying to load "%s" ...' % (fname)
+ print('\ttrying to load "%s" ...' % (fname))
try:
h = win32api.LoadLibrary(fname)
if h:
dll_name = win32api.GetModuleFileName(h)
- print '\t%s loaded' % (dll_name)
+ print('\t%s loaded' % (dll_name))
except:
- print '\tCannot load "%s" !!!' % (fname)
+ print('\tCannot load "%s" !!!' % (fname))
def main():
if '--version' in sys.argv:
- print __version__
+ print(__version__)
return
elif '--help' in sys.argv:
- print USAGE
+ print(USAGE)
return
elif '--test' in sys.argv:
which('libpq.dll')
@@ -111,10 +119,11 @@
which('ssleay32.dll')
which('cmd.exe')
which('grep')
+ which('iclit09b.dll')
which('non_existient.dll')
return
if len(sys.argv) < 2:
- print USAGE
+ print(USAGE)
else:
which(sys.argv[1])
