I don't see what trim() is good for but I know I've written ltrim() hundreds of times easy.
I propose naming them strip_prefix() and strip_suffix() and just skip the one that does both sides since it makes no sense to me. Trim is generally a bad name because what is called strip() in python is called trim() in other languages. This would be needlessly confusing. > On 24 Mar 2019, at 09:42, Alex Grigoryev <evr...@gmail.com> wrote: > > Following the discussion here I propose to add 3 new string methods: > str.trim, str.ltrim, str.rtrim > Another option would be to change API for str.split method to work correctly > with sequences. > > In [1]: def ltrim(s, seq): > > ...: return s[len(seq):] if s.startswith(seq) else s > > ...: > > > > In [2]: def rtrim(s, seq): > > ...: return s[:-len(seq)] if s.endswith(seq) else s > > ...: > > > > In [3]: def trim(s, seq): > > ...: return ltrim(rtrim(s, seq), seq) > > ...: > > > > In [4]: s = 'mailto:ma...@gmail.com' > > > > In [5]: ltrim(s, 'mailto:') > > Out[5]: 'ma...@gmail.com' > > > > In [6]: rtrim(s, 'com') > > Out[6]: 'mailto:maria@gmail.' > > > > In [7]: trim(s, 'm') > > Out[7]: 'ailto:ma...@gmail.co' > > > _______________________________________________ > Python-ideas mailing list > Python-ideas@python.org > https://mail.python.org/mailman/listinfo/python-ideas > Code of Conduct: http://python.org/psf/codeofconduct/
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