Version 2.7.2

Added

luigi:

• A button to show errors for disabled tasks in the visualizer (#2266)
• OptionalParameter parameter class (#2295)

luigi.contrib:

• Support for the Docker Python SDK (#2158)

Changed

luigi:

• Change the logging status of prune messages from info to debug (#2254) - reduce repetitiveness of logging
• Speed up the visualizer so that a refresh doesn’t take minutes when number of tasks gets into the millions (#2239)
• Hide "re-enable" and "forgive failures" buttons on success (#2281)
• Convert dates to datetimes for DateHourParameter (#2285)
• Handle multiprocessing with request sessions (#2290) - Fixes bug with "RPCError: Received null response from remote scheduler"
• Replaced param_args with dynamic property with deprecation message
• Check task equality using param_kwargs instead of param_args

Removed

luigi.contrib:

• Copying of Avro field documentation by BigQueryLoadAvro (#2269) - said copying is done by BigQuery natively now

Fixed

luigi:

• Remove invalid entrypoint luigi.tools.migrate (#2257)
• Preserve filter on server on reload (#2273)
• Fix MRO on tasks using util.requires (#2307)

luigi.contrib:

• Fix Python 3 TypeError in contrib.hive.HiveTableTarget.exists (#2323)