[Python-Dev] Nuking wstr [Re: How can we use 48bit pointer safely?] (original) (raw)

Serhiy Storchaka storchaka at gmail.com
Fri Mar 30 14:40:21 EDT 2018

30.03.18 16:54, Antoine Pitrou пише:

We could also simply nuke wstr. I frankly don't think it's very important. It's only used when calling system functions taking a wchart argument, as an « optimization ». I'd be willing to guess that modern workloads aren't bottlenecked by the cost overhead of those system functions...

This is possible only after removing all Py_UNICODE related C API. It is deprecated since 3.3, but only in the documentation, and should stay to the EOL of 2.7. Only in 3.7 most of these functions started emitting deprecation warnings at compile time (GCC-only). [1] It would be good to make them emitted in other compilers too. In future versions we could make them emitting user-visible runtime deprecation warnings, and finally make them always failing after 2020.

[1] https://bugs.python.org/issue19569

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