[Python-Dev] r86418 - in python/branches/release27-maint: Doc/library/difflib.rst Lib/difflib.py Lib/test/test_difflib.py Misc/NEWS (original) (raw)

Nick Coghlan ncoghlan at gmail.com
Sat Nov 13 01:51:03 CET 2010

On Sat, Nov 13, 2010 at 6:32 AM, Terry Reedy <tjreedy at udel.edu> wrote:

On 11/12/2010 2:42 PM, Antoine Pitrou wrote:

Maybe I've missed something, but is there any reason to add a new parameter in a bugfix release? (apart from security issues) This is a bugfix. We discussed this (with Tim's participation) here last July/August and pretty well agreed that this was the least obnoxious solution to a bad situation.

Yep, as Terry said, the current behaviour is irredeemably broken in some situations, but switching it off completely would break other cases. Adding a new optional parameter that defaulted to the 2.7 behaviour was considered the least-bad option out of those available (do nothing, add parameter, change default behaviour, add new API).

Cheers, Nick.

-- Nick Coghlan   |   ncoghlan at gmail.com   |   Brisbane, Australia

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