'timedelta()'-funksjonen til Python er til stede i datetime-biblioteket, som vanligvis brukes til å beregne forskjeller i gitte datoer. Vi kan også bruke den til å manipulere datoer i Python, og denne funksjonen gjør det veldig enkelt for brukere å manipulere datoer.

Syntaks:

 Datetime.timedelta(days = 0, seconds = 0, microseconds = 0, milliseconds = 0, minutes = 0, hours = 0, weeks = 0) Return: Date 

For bedre forståelse vil vi vise hvordan du bruker 'datetime.timedelta()'-funksjonen i følgende eksempel:

Eksempel 1:

I dette eksemplet vil vi skrive ut fremtidige datoer på tre år og tre dager:

 from datetime import datetime as D_T, timedelta as T_D # Using current time initializing_time_for_now = D_T.now() # To print initial date print ('Initial Date: ', str(initializing_time_for_now)) # For Calculating the future dates of three years Future_Date_After_THREE_yrs = initializing_time_for_now +  T_D(days = 1095) # For Calculating the future dates of three days Future_Date_After_THREE_days = initializing_time_for_now +  T_D(days = 2) # Now, we will print the calculated future dates print('Future Date after Three years: ', str(Future_Date_After_THREE_yrs)) print('Future Date after Three days: ', str(Future_Date_After_THREE_days)) 

Produksjon:

 Initial Date: 2021-10-14 00:09:43.611036 Future Date after Two years: 2023-10-15 00:09:43.611036 Future Date after Two days: 2021-10-17 00:09:43.611036 

Eksempel 2:

I dette eksemplet vil vi se hvordan vi kan skrive ut de siste datoene på to år og to timer:

 from datetime import datetime as D_T, timedelta as T_D # Using current time initializing_time_for_now = D_T.now() # To print initial date print ('Initial Date:', str(initializing_time_for_now)) # For Calculating the past dates of two year Past_Date_Before_TWO_yrs = initializing_time_for_now -  timedelta(days = 730) # For Calculating the past dates of two hours Past_Date_Before_TWO_hours = initializing_time_for_now -  timedelta(hours = 2) # Now, we will print the calculated Past Dates print('Past date before two years: ', str(Past_Date_Before_TWO_yrs)) print('Past date before two hours: ', str(Past_Date_Before_TWO_hours)) 

Produksjon:

 Initial Date: 2021-10-14 00:19:18.449629 Past date before two years: 2019-10-15 00:19:18.449629 Past date before two hours: 2021-10-13 22:19:18.449629 

Eksempel 3:

I dette eksemplet vil vi beregne forskjellen mellom de to forskjellige datoene:

 from datetime import datetime as D_T, timedelta as T_D # Using current time initializing_time_for_now = D_T.now() # To print initial date print ('Initial Date:', str(initializing_time_for_now)) # Some another datetime New_time = initializing_time_for_now +  T_D(days = 7, hours = 6, milliseconds = 55, seconds = 12) New_time_1 = initializing_time_for_now +  T_D(days = 12, hours = 64, milliseconds = 215, seconds = 90) # We will print the new time print ('New calculated time: ', str(New_time)) # Now, we will print the time difference between the two Dates: print('Time difference between the given dates is:', str(New_time -  initializing_time_for_now)) print('Time difference between the initial Date and New_time_1 is:', str(New_time_1 -  initializing_time_for_now)) 

Produksjon:

 Initial Date: 2021-10-14 00:31:13.920503 New calculated time: 2021-10-21 06:31:25.975503 Time difference between the given dates is: 7 days, 6:00:12.055000 Time difference between the initial Date and New_time_1 is: 14 days, 16:01:30.215000 

Konklusjon

I denne opplæringen lærte vi om 'datetime.timedelta()'-funksjonen til datetime-biblioteket i Python. Vi har også diskutert ulike eksempler for bedre å forstå konseptet med å manipulere datoer og beregne forskjellen mellom to datoer.