Code to calculate the next ppl to do door duties
usage: doorduty [-h] --start-date START_DATE --num-months NUM_MONTHS
[--dry-run]
optional arguments:
-h, --help show this help message and exit
--start-date START_DATE
Start date in the format %Y-%m-%d, i.e . 2018-12-01
--num-months NUM_MONTHS
Number of months to run door duty for
--dry-run Optional: If set then the duties will not be written
to the DB
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