Intermittent parse() KeyError failure with 2.8.0 #901
Description
We are seeing a KeyError exception with 2.8.0 intermittently. We have reverted to 2.7.5 for now. Seems like a thread safety issue with the new strong cache? Here's the traceback:
File "site-packages\dateutil\parser\_parser.py", line 1358, in parse
File "site-packages\dateutil\parser\_parser.py", line 657, in parse
File "site-packages\dateutil\parser\_parser.py", line 1192, in _build_tzaware
File "site-packages\dateutil\tz\_factories.py", line 40, in __call__
File "collections.py", line 157, in pop
File "collections.py", line 86, in __delitem__
KeyError: (None, -25200)