Die Funktion „timedelta()“ von Python ist in der datetime-Bibliothek vorhanden, die normalerweise zur Berechnung von Differenzen in bestimmten Datumsangaben verwendet wird. Wir können es auch verwenden, um Datumsangaben in Python zu manipulieren, und diese Funktion macht es Benutzern sehr einfach, Daten zu manipulieren.

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Syntax:

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

Zum besseren Verständnis zeigen wir die Verwendung der Funktion „datetime.timedelta()“ anhand des folgenden Beispiels:

Beispiel 1:

In diesem Beispiel drucken wir die zukünftigen Daten von drei Jahren und drei Tagen aus:

 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)) 

Ausgabe:

 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 

Beispiel 2:

In diesem Beispiel sehen wir, wie wir die vergangenen Daten von zwei Jahren und zwei Stunden drucken können:

 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)) 

Ausgabe:

 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 

Beispiel 3:

In diesem Beispiel berechnen wir die Differenz zwischen den beiden verschiedenen Daten:

 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)) 

Ausgabe:

 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 

Abschluss

In diesem Tutorial haben wir etwas über die Funktion „datetime.timedelta()“ der datetime-Bibliothek in Python gelernt. Wir haben auch verschiedene Beispiele besprochen, um das Konzept der Datumsmanipulation und der Berechnung der Differenz zwischen zwei Datumsangaben besser zu verstehen.