Gregory P. Smith <g...@krypto.org> added the comment:

Agreed, we failed to mention the behavior change in the docs.  I'll take 
care of that.  (if its mentioned at all, its mentioned in a note buried 
in the Misc/NEWS file somewhere)

2to3 could presumably be made to notice crc32 and adler32 calls and warn 
about this problem.  I wouldn't have 2to3 add code to re-sign the return 
value by default as not everything needs that but it is worthy of a 
warning.

----------
assignee:  -> gregory.p.smith
components: +Documentation
priority:  -> normal
resolution: duplicate -> 
status: closed -> open
title: binascii.crc32() -> binascii.crc32() - document signed vs unsigned 
results

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue4903>
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