Parser only partially accounts for case-insensitive nature of ISO8601 datestamps · Issue #820 · dateutil/dateutil
$ python -c "from dateutil.parser import parse > print parse('1970-01-01T00:00:00Z') > print parse('1970-01-01t00:00:00Z') > print parse('1970-01-01t00:00:00') > print parse('1970-01-01t00:00:00z')...
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