Something like: from __syntax__ import decimal_literal
which would feed the rest of the file through the "decimal_literal" transpiler. (and not influence anything in other files). Not sure if you would want to support multiple transpilers per file. Note that Racket has something similar with their initial "#lang ..." directive. That only allows a single "language". Possibly wisely so. Stephan 2017-01-12 12:59 GMT+01:00 אלעזר <elaz...@gmail.com>: > I think such proposals are special cases of a general theme: a compiler > pragma, similar to "from __future__", to make Python support > domain-specific syntax in the current file. Whether it's decimal literals > or matrix/vector literals etc. > > I think it will be nice to make some tool, external to Python, that will > allow defining such "sibling languages" (transpiled into Python) easily and > uniformly. > > Elazar > > בתאריך יום ה׳, 12 בינו' 2017, 13:21, מאת Paul Moore <p.f.mo...@gmail.com > >: > >> On 12 January 2017 at 10:28, Victor Stinner <victor.stin...@gmail.com> >> wrote: >> > George requested this feature on the bug tracker: >> > http://bugs.python.org/issue29223 >> > >> > George was asked to start a discusson on this list. I posted the >> > following comment before closing the issue: >> > >> > You are not the first one to propose the idea. >> >> OK, but without additional detail (for example, how would the proposed >> flag work, if the main module imports module A, then would float >> literals in A be decimal or binary? Both could be what the user wants) >> it's hard to comment. And as you say, most of this has been discussed >> before, so I'd like to see references back to the previous discussions >> in any proposal, with explanations of how the new proposal addresses >> the objections raised previously. >> >> Paul >> _______________________________________________ >> 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/ >
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