2018-05-06 15:28 GMT+02:00 Cody Piersall <cody.piers...@gmail.com>: > With PEP 562, the name __dir__ is off limits for this. > > Cody > > On Sun, May 6, 2018, 1:54 AM Yuval Greenfield <ubershme...@gmail.com> > wrote: > >> Hi Ideas, >> >> I often need to reference a script's current directory. I end up writing: >> >> import os >> SRC_DIR = os.path.dirname(__file__) >> >> >> But I would prefer to have a new dunder for that. I propose: "__dir__". I >> was wondering if others would find it convenient to include such a shortcut. >> >> >> Here are some examples of dirname(__file__) in prominent projects. >> >> https://github.com/tensorflow/models/search?l=Python&q=dirname&type= >> https://github.com/django/django/search?l=Python&q=dirname&type= >> https://github.com/nose-devs/nose/search?l=Python&q=dirname&type= >> >> Reasons not to add __dir__: >> * There already is one way to do it and it's clear and fairly short. >> * Avoid the bikeshed discussion of __dir__, __folder__, and other >> candidates. >> >> Reasons to add it: >> * os.path.dirname(__file__) returns the empty string when you're in the >> same directory as the script. Luckily, os.path.join understands an empty >> string as a ".", but this still is suboptimal for logging where it might be >> surprising to find the empty string. __dir__ could be implemented to >> contain a "." in that case. >> * I would save about 20 characters and a line from 50% of my python >> scripts. >> * This is such a common construct that everyone giving it their own name >> seems suboptimal for communicating. Common names include: here, path, >> dirname, module_dir. >> >> Cheers, >> >> Yuval Greenfield >> >> P.s. nodejs has it - https://nodejs.org/docs/latest/api/modules.html# >> modules_dirname also I apologize if this has been suggested before - my >> googling didn't find a previous thread. >> >> _______________________________________________ >> Python-ideas mailing list >> Python-ideas@python.org >> https://mail.python.org/mailman/listinfo/python-ideas >> Code of Conduct: http://python.org/psf/codeofconduct/ >> > > _______________________________________________ > Python-ideas mailing list > Python-ideas@python.org > https://mail.python.org/mailman/listinfo/python-ideas > Code of Conduct: http://python.org/psf/codeofconduct/ > >
Hi, I would give +1 for __dirname__ George
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