Python | Repeating tuples N times

• Last Updated : 03 Nov, 2019

Sometimes, while working with data, we might have a problem in which we need to replicate, i.e construct duplicates of tuples. This is important application in many domains of computer programming. Let’s discuss certain ways in which this task can be performed.

Method #1 : Using * operator
The multiplication operator can be used to construct the duplicates of a container. This also can be extended to tuples even though tuples are immutable.

 # Python3 code to demonstrate working of# Repeating tuples N times# using * operator  # initialize tuple test_tup = (1, 3)  # printing original tuple print("The original tuple : " + str(test_tup))  # initialize N N = 4  # Repeating tuples N times# using * operatorres = ((test_tup, ) * N)  # printing resultprint("The duplicated tuple elements are : " + str(res))
Output :
The original tuple : (1, 3)
The duplicated tuple elements are : ((1, 3), (1, 3), (1, 3), (1, 3))

Method #2 : Using repeat()
The internal function of itertools library, repeat() can be used to achieve the solution to the above problem.

 # Python3 code to demonstrate working of# Repeating tuples N times# using repeat()from itertools import repeat  # initialize tuple test_tup = (1, 3)  # printing original tuple print("The original tuple : " + str(test_tup))  # initialize N N = 4  # Repeating tuples N times# using repeat()res = tuple(repeat(test_tup, N))  # printing resultprint("The duplicated tuple elements are : " + str(res))
Output :
The original tuple : (1, 3)
The duplicated tuple elements are : ((1, 3), (1, 3), (1, 3), (1, 3))

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