quantopian / zipline / 3896

88%

master: 88%

Build Type

push

travis-ci

Committed by Andrew Daniels

Commit Message

BUG: Improves lookup_future_chain to handle NaT date args

If lookup_future_chain was provided with an as_of_date or knowledge date that was pandas.NaT, the query we were forming wasn't what we want. Instead, as_of_date, if not NaT, is used for knowledge_date, and if both are NaT, no date filtering is done in the query.

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