Get last datetime from from weekday() index in Python-CodePudding

I would like to get the most recent datetime of a weekday() index in Python. How could I do this?

Example: Let's say today is Wednesday 02/09 (weekday index 2). Input 0 would give me datetime of last Tuesday, which is 02/07. 3 would give me datetime of last Thursday, which would be 02/03.

CodePudding user response：

To my understanding, weekday() only gives n'th day of the week based on a time instance.
So, ideally, the best way to get most recent weekday would be date.today().weekday().

CodePudding user response：

I broke it down to small steps, of course you can combine them to fewer expressions:

from datetime import date

def most_recent_date(most_recent_index):
    today = date.today()
    today_index = today.weekday()
    today_ordinal = today.toordinal()
    most_recent_ordinal = today_ordinal - (today_index - most_recent_index) % 7
    most_recent = date.fromordinal(most_recent_ordinal)
    return most_recent

print(most_recent_date(1))