Martin v. Löwis wrote:
Skip Montanaro wrote:
 > I say backport.  If people were trying to call os.access with unicode

filenames it would have been failing and they were either avoiding unicode
filenames as a result or working around it some other way. I can't see how
making os.access work with unicode filenames is going to break existing
code.


The question is whether it would encourage conditional work-arounds.

-1. That only makes the code more complicated.

If
people will put into their code

if sys.version_info < (2,4,2):
   import os, sys
   def new_access(name, mode, old_access = os.access):
       try:
           return old_access(name, mode)
       except UnicodeError:
           return old_access(name.encode(
                sys.getfilesystemencoding()), mode)
   os.access = new_access

then backporting does not improve anything. OTOH, if people are likely
to say "yes, this was a bug in 2.4.0 and 2.4.1, you need atleast 2.4.2",
backporting will help.

+1. Application writers can add tests for the correct version of Python to their application and give a warning to the user in case the version doesn't match.

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