use access for fileExits instead of try to open a file

diff --git a/lib/python/Tools/Directories.py b/lib/python/Tools/Directories.py
index 8a35f1d..2b60924 100644 (file)
--- a/lib/python/Tools/Directories.py
+++ b/lib/python/Tools/Directories.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 
-from os import path as os_path, mkdir, rmdir, system, walk, stat as os_stat, listdir, readlink, makedirs, error as os_error, symlink
+from os import path as os_path, mkdir, rmdir, system, walk, stat as os_stat, listdir, readlink, makedirs, error as os_error, symlink, access, F_OK, R_OK, W_OK
 from stat import S_IMODE
 from re import compile
 
@@ -148,13 +148,13 @@ def removeDir(path):
        return ret
 
 def fileExists(f, mode='r'):
-       try:
-               file = open(f, mode)
-       except IOError:
-               exists = 0
+       if mode == 'r':
+               acc_mode = R_OK
+       elif mode == 'w':
+               acc_mode = W_OK
        else:
-               exists = 1
-       return exists
+               acc_mode = F_OK
+       return access(f, acc_mode)
 
 def getRecordingFilename(basename, dirname = None):
        # filter out non-allowed characters