--I want to add the previous month to the file name → I want to get the previous month
--Get the current date with datetime and subtract one month
--It seems easy to use dateutil
First, install `` `dateutil```
pip install python-dateutil
Get today's date and try it for a month
tesy.py
#today
today = datetime.date.today()
#last month
sengetsu = today - relativedelta(months=1)
result
2020-03-09
I want to use `` `yyyyMM``` for the file name, so format it
test.Fix py
sengetsu = (today - relativedelta(months=1)).strftime('%Y%m')
print(sengetsu)
result
202003
――It turned out to be unexpectedly troublesome
--If it is `powershell```, it ends with (get-date) .AddMonths (-1) .ToString ('yyyyMM') `` in one line.
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