"Persistent / Immutable / Functional data structures for Python" https://github.com/tobgu/pyrsistent IIRC, there are a number of threads discussing adding const as a language feature? It may be worth linking those here / in the gh issue? IIUC, the linked proposal describes adding const as an annotation feature for static analysis only. Would const as a language feature have any effect on the gilectomy? e.g. less locks required Ways to achieve practical runtime const (~immutability): * add a has_key() check in __setattr__ https://gist.github.com/ashwin/e3844158e3d7afd16adb * define an @property without a propname.setter (for a __dunder_prefixed class attr which will otherwise be name-mangled) * const as a language feature . * from typing import Const this would be a great hint for static analysis, but would things really be const? On Jul 11, 2016 12:43 PM, "Siva Chandra via Python-ideas" < python-ideas@python.org> wrote:

Hello,

I have submitted a proposal to add const-ness type hint constructs here: https://github.com/python/typing/issues/242

Looking for feedback on the proposal.

Thanks, Siva Chandra _______________________________________________ Python-ideas mailing list Python-ideas@python.org https://mail.python.org/mailman/listinfo/python-ideas Code of Conduct: http://python.org/psf/codeofconduct/