Raymond Hettinger wrote:
- Removed caching of TimeRE (and thus LocaleTime) in _strptime.py to
- fix a locale related bug in the test suite. Although another patch
- was needed to actually fix the problem, the cache code was not
FWIW, I would feel safer if the cache code were restored. That code has been around for while and the one defect is known. In contrast, the "ripping it out" touched a lot of code and has not been thoroughly reviewed.
One argument for not putting it back: I realized that it is not totally thread-safe because of the laziness of the figuring out the locale info (although switching the locale while running threads you are asking for trouble). While there is no specific thread-safety claims, I would rather work the code to make it thread-safe before re-introducing caching.
But if people feel otherwise it is easy to put back in. I am abstaining from making any form of a vote on this since to not have a warped bias towards one side.