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Python | K Character Split String

  • Last Updated : 30 Jan, 2020

The problems and at the same time applications of list splitting is quite common while working with python strings. Some characters are usually tend to ignore in the use cases. But sometimes, we might not need to omit those characters but include them in our programming output. Let’s discuss certain ways in which this problem can be solved.

Method #1 : Using split() + list comprehension
This kind of operation can be performed using the split function and list comprehension. The main difference in not omitting the character is that we specifically add the characters that we might have omitted in the process, after each element.




# Python3 code to demonstrate
# K Character Split String
# using list comprehension + split()
  
# initializing string
test_string = "GfG_is_Best"
  
# printing original string
print("The original string : " + str(test_string))
  
# initializing K 
K = '_'
  
# using list comprehension + split()
# K Character Split String
res = [i for j in test_string.split(K) for i in (j, K)][:-1]
  
# print result
print("The list without omitting Character : " + str(res))
Output :
The original string : GfG_is_Best
The list without omitting Character : ['GfG', '_', 'is', '_', 'Best']

 

Method #2 : Using zip() + chain() + cycle()
This particular task can also be performed using the combination of above 3 functions. The zip function can be used to bind the logic, chain and cycle function perform the task of inserting the character at appropriate position.






# Python3 code to demonstrate
# K Character Split String
# using zip() + chain() + cycle()
from itertools import chain, cycle
  
# initializing string
test_string = "GfG_is_Best"
  
# printing original string
print("The original string : " + str(test_string))
  
# initializing K 
K = "_"
  
# using zip() + chain() + cycle()
# K Character Split String
res = list(chain(*zip(test_string.split(K), cycle(K))))[:-1]
  
# print result
print("The list without omitting character : " + str(res))
Output :
The original string : GfG_is_Best
The list without omitting Character : ['GfG', '_', 'is', '_', 'Best']

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