Merged revisions 81393 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

........
  r81393 | victor.stinner | 2010-05-21 12:52:08 +0200 (ven., 21 mai 2010) | 3 lines

  Issue #8774: tabnanny uses the encoding cookie (#coding:...) to use the correct
  encoding
........
diff --git a/Lib/tabnanny.py b/Lib/tabnanny.py
index 0ae5e9f..3a8cd37 100755
--- a/Lib/tabnanny.py
+++ b/Lib/tabnanny.py
@@ -93,8 +93,11 @@
                 check(fullname)
         return
 
+    with open(file, 'rb') as f:
+        encoding, lines = tokenize.detect_encoding(f.readline)
+
     try:
-        f = open(file)
+        f = open(file, encoding=encoding)
     except IOError as msg:
         errprint("%r: I/O Error: %s" % (file, msg))
         return