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Diffstat (limited to 'python/collateral/common.py')
| -rw-r--r-- | python/collateral/common.py | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/python/collateral/common.py b/python/collateral/common.py index a7a34be6..3db7349e 100644 --- a/python/collateral/common.py +++ b/python/collateral/common.py @@ -131,3 +131,12 @@ def get_col(l, top, bottom, left, right): and int(c["top"]) >= top and int(c["top"]) < bottom ] + + +def prev_business_day(d: datetime.date): + if (offset := d.weekday() - 4) > 0: + return d - datetime.timedelta(days=offset) + elif offset == -4: + return d - datetime.timedelta(days=3) + else: + return d - datetime.timedelta(days=1) |