malin...@163.com writes: > PEP 515 added underscore to numeric literals, it brings better > readability. > > PEP 515 -- Underscores in Numeric Literals > https://www.python.org/dev/peps/pep-0515/ > > Is it possible to add _KB, _MB, _GB to numeric literals, for example:
With a bit of generalization, it's something that many scientific users would like to see. But I think if you follow the idea to some logical extensions, you'll see that it's not a good idea. The problem is that adding them to literals would require that they be built in to the parser. But why stop at _KB? Surely you need _KiB and _km and _kg? Should _m_s be interpreted as meter-seconds or meters/second? Look up the units and siunits modules on PyPI for two examples of how units could be handled in Python. A few years ago there was a long discussion about the design of a somewhat more powerful module like siunits that could added to the standard library, and perhaps be given a syntactic role eventually (so that you could write 10 kb instead of 10*kb). I don't have time or energy to look up the thread, but siunits seems to have most of the features proposed, so I doubt it's worth your time to chase it down youself. Unless you want the *really* *long* version of the paragraph above. :-) Steve _______________________________________________ Python-ideas mailing list -- python-ideas@python.org To unsubscribe send an email to python-ideas-le...@python.org https://mail.python.org/mailman3/lists/python-ideas.python.org/ Message archived at https://mail.python.org/archives/list/python-ideas@python.org/message/F7XQQVHYLLNFPNHQ2FRGELWS3HPKHU7X/ Code of Conduct: http://python.org/psf/codeofconduct/
