[Python-Dev] Re: PEP 638: Syntactic macros
Stéfane Fermigier writes: > NB: on a very basic level, I remember trying, a few years ago, to use the > Unicode "empty set" symbol as a synonym for set(), and it didn't end well, > for several reasons, including the fact that Python didn't like it as a > variable name. I know about the issue that '∅' is not valid in identifiers, but I'm curious about these other "several reasons". ___ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-le...@python.org https://mail.python.org/mailman3/lists/python-dev.python.org/ Message archived at https://mail.python.org/archives/list/python-dev@python.org/message/7OHL242ZWVOYTBKTZOC72PQK5V4BKX2I/ Code of Conduct: http://python.org/psf/codeofconduct/
[Python-Dev] Re: PEP 638: Syntactic macros
" On Fri, Feb 3, 2023 at 12:28 PM Stephen J. Turnbull < stephenjturnb...@gmail.com> wrote: > Stéfane Fermigier writes: > > > NB: on a very basic level, I remember trying, a few years ago, to use > the > > Unicode "empty set" symbol as a synonym for set(), and it didn't end > well, > > for several reasons, including the fact that Python didn't like it as a > > variable name. > > I know about the issue that '∅' is not valid in identifiers, but I'm > curious about these other "several reasons". > IIRC (this was a few years back): '∅' (aka EMPTY SET) was not accepted by Python, so I used instead ''Ø" (aka "LATIN CAPITAL LETTER O WITH STROKE"). Python was OK with it, but some of the tools I use (one of flake8, isort, black... or maybe one of my IDE) barfed on it. S. -- Stefane Fermigier - http://fermigier.com/ - http://twitter.com/sfermigier - http://linkedin.com/in/sfermigier Founder & CEO, Abilian - Enterprise Social Software - http://www.abilian.com/ Co-Founder & Co-Chairman, National Council for Free & Open Source Software (CNLL) - http://cnll.fr/ Co-Founder & Chairman, Association Professionnelle Européenne du Logiciel Libre (APELL) - https://www.apell.info/ Co-Founder & Spokesperson, European Cloud Industrial Alliance (EUCLIDIA) - https://www.euclidia.eu/ "I wish you were as accurate, & as much to be relied on, as I am myself" - Lady Ada Lovelace ___ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-le...@python.org https://mail.python.org/mailman3/lists/python-dev.python.org/ Message archived at https://mail.python.org/archives/list/python-dev@python.org/message/H2UALG4YAA6IBMZQMWEL2QIOPDPK4RTG/ Code of Conduct: http://python.org/psf/codeofconduct/
[Python-Dev] Re: PEP 638: Syntactic macros
El vie, 3 feb 2023 a las 8:01, Stéfane Fermigier () escribió: > " > > > On Fri, Feb 3, 2023 at 12:28 PM Stephen J. Turnbull < > stephenjturnb...@gmail.com> wrote: > >> Stéfane Fermigier writes: >> >> > NB: on a very basic level, I remember trying, a few years ago, to use >> the >> > Unicode "empty set" symbol as a synonym for set(), and it didn't end >> well, >> > for several reasons, including the fact that Python didn't like it as a >> > variable name. >> >> I know about the issue that '∅' is not valid in identifiers, but I'm >> curious about these other "several reasons". >> > > IIRC (this was a few years back): '∅' (aka EMPTY SET) was not accepted by > Python, so I used instead ''Ø" (aka "LATIN CAPITAL LETTER O WITH STROKE"). > > Python was OK with it, but some of the tools I use (one of flake8, isort, > black... or maybe one of my IDE) barfed on it. > Black is fine with it; we've had the empty set symbol in our own source code since the beginning ( https://github.com/psf/black/blob/b0d1fba7ac3be53c71fb0d3211d911e629f8aecb/src/black/linegen.py#L455 now). I believe we've had someone ask that we remove it because it was breaking some tool that was processing the Black source code, but Łukasz wasn't having it. > > S. > > -- > Stefane Fermigier - http://fermigier.com/ - http://twitter.com/sfermigier > - http://linkedin.com/in/sfermigier > Founder & CEO, Abilian - Enterprise Social Software - > http://www.abilian.com/ > Co-Founder & Co-Chairman, National Council for Free & Open Source Software > (CNLL) - http://cnll.fr/ > Co-Founder & Chairman, Association Professionnelle Européenne du Logiciel > Libre (APELL) - https://www.apell.info/ > Co-Founder & Spokesperson, European Cloud Industrial Alliance (EUCLIDIA) - > https://www.euclidia.eu/ > > "I wish you were as accurate, & as much to be relied on, as I am myself" > - Lady Ada Lovelace > ___ > Python-Dev mailing list -- python-dev@python.org > To unsubscribe send an email to python-dev-le...@python.org > https://mail.python.org/mailman3/lists/python-dev.python.org/ > Message archived at > https://mail.python.org/archives/list/python-dev@python.org/message/H2UALG4YAA6IBMZQMWEL2QIOPDPK4RTG/ > Code of Conduct: http://python.org/psf/codeofconduct/ > ___ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-le...@python.org https://mail.python.org/mailman3/lists/python-dev.python.org/ Message archived at https://mail.python.org/archives/list/python-dev@python.org/message/2VWIJNEP7WBKXJN5XC6LG375THKBUGUL/ Code of Conduct: http://python.org/psf/codeofconduct/
