[Python-Dev] Deprecating undocumented, unused functions in difflib.
fuzzyman at voidspace.org.uk
Thu Dec 2 02:22:18 CET 2010
On 01/12/2010 20:23, Terry Reedy wrote:
> Difflib.SequenceMatcher object currently get two feature attributes:
> self.isbjunk = junk.__contains__
> self.isbpopular = popular.__contains__
> Tim Peters agrees that the junk and popular sets should be directly
> exposed and documented as part of the api, thereby making the
> functions redundant. The two functions are not currently documented
> (and should not be now). A google codesearch of 'isbjunk' and
> 'isbpopular' only returns hits in difflib.py itself (and its
> predecessor, ndiff.py).
> It would be easiest to just remove the two lines above.
> Or should I define functions _xxx names that issue a deprecation
> warning and attach them as attributes to each object? (Defining
> instance methods would not be the same).
> There is only one internal use of one of the two functions which is
> easily edited.
I would still be tempted to go through a single release of deprecation.
You can add a test that the names are gone if the version of Python is
3.3. When the tests start failing the code and the tests can be ripped out.
All the best,
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