/ dramatiq Public
Don't use argparse.FileType #141
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Using argparse.FileType for argparse's log-file argument stores an unserializable TextIOWrapper on args (see https://docs.python.org/3/library/argparse.html#argparse.FileType). This breaks the spawn multiprocessing creation method (i.e. Windows).
This commit reverts to the prior method of handling args.log_file and attempts to close the log file handle when exiting.