shutil: Work around type checker problem

Cast tuple type to 'tuple'. See also issue #158.
python · Feb 25, 2013 · 4a77077 · 4a77077
1 parent 9e867d7
commit 4a77077
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/python-lib/shutil.py b/python-lib/shutil.py
@@ -543,7 +543,7 @@ def _set_uid_gid(tarinfo):
     if not isinstance(extra_args, (tuple, list)):
         raise TypeError('extra_args needs to be a sequence')
     for element in extra_args:
-        if not isinstance(element, (tuple, list)) or len(element) !=2 :
+        if not isinstance(element, (tuple, list)) or len((tuple)element) !=2 :
             raise TypeError('extra_args elements are : (arg_name, value)')
 
     _ARCHIVE_FORMATS[name] = (function, list(extra_args), description)