How to get which day from date in Python-CodePudding

I have this format of datetime in Python "2022-09-01 08:36:22", how can I get which weekday of it?

I also created this dictionary

day_of_week = { 1: "sunday", 2: "monday", 3: "tuesday", 4: "wednesday", 5: "thursday", 6: "friday", 7: "saturday" }

to get number and convert it to corresponding day.

Update : september_2022["started_at"].dt.dayofweek

when I used this code I can get integer for corresponding day, but I want to create new column and assign it days of week.

september_2022["day_of_week"] = day_of_week[september_2022["started_at"].dt.dayofweek]

and get this error : unhashable type: 'Series'

CodePudding user response：

Using the datetime library:

datetime.strptime(date_string, "%Y-%m-%d %H:%M:%S").strftime("%A")

CodePudding user response：

You can use dt.day_name for a vectorial conversion:

df = pd.DataFrame({'date': ['2022-09-01 08:36:22', '2022-09-03 08:36:22']})

pd.to_datetime(df['date']).dt.day_name()

output:

0    Thursday
1    Saturday
Name: date, dtype: object