On Sat, Nov 5, 2016 at 9:26 AM, Chris Angelico wrote:

I believe there was a proposal at one point to have a pip-updateable package, but a stdlib or OS-provided fallback. If it's possible to query the version of the OS-provided tzdata, Python could easily check all three and use the latest one available.

Yes, that was PEP 431, [1] but it was withdrawn after its author got stuck on the issue that was later resolved in PEP 495. [2] With that hurdle behind, I plan to revive the proposal to include full timezone support in Python some time in the 3.7 cycle. I started a test project [3] and similar functionality is being incorporated by Paul Ganssle in the dateutil library. [4] We still have enough time for various ideas to get tested in PyPI packages before they can be solidified in a PEP. [1]: https://www.python.org/dev/peps/pep-0431 [2]: https://www.python.org/dev/peps/pep-0495 [3]: https://github.com/abalkin/tz [4]: https://dateutil.readthedocs.io/en/stable/tz.html