Python calculates the next trading day or workday based on today.

According to today, the next trading day or working days

DateTime
time

TMP = Datetime.datetime.now ()
(tmp.weekday () = 4):  # friday
    nextwork_day = Datetime.date.today ( ) + Datetime.timedelta (days=3)
(tmp.weekday () = 5):  # Sat
    nextwork_day = Datetime.date.today ( ) + Datetime.timedelta (days=2)
else:
    nextwork_day = datetime.date.today () + Datetime.timedelta ( Days=1)

Nextwork_day is the next trading day.

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Today = Datetime.date.today ()

In addition such computations yesterday yesterday = Today-datetime.timedelta (Days=1)

So, calculate the day before yesterday, the day before yesterday or something, according to the above, I will no longer detail coding