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Convert list of strings and characters to list of characters in Python
While dalign with lists, we may come across a situation where we have to process a string and get its individual characters for further processing. In this article we will see various ways to do that.
With list comprehension
We design a for loop to go through each element of the list and another loop inside this to pick each character from the element which is a string.
Example
listA = ['Mon','d','ay']
# Given lists
print("Given list : \n", listA)
# Get characters
res = [i for ele in listA for i in ele]
# Result
print("List of characters: \n",res)
Output
Running the above code gives us the following result −
Given list : ['Mon', 'd', 'ay'] List of characters: ['M', 'o', 'n', 'd', 'a', 'y']
With chain
The itertools module of python gives us the chain function. Using it we fetch each character from the strings of the list and put it into a new list.
Example
from itertools import chain
listA = ['Mon','d','ay']
# Given lists
print("Given list : \n", listA)
# Get characters
res = list(chain.from_iterable(listA))
# Result
print("List of characters: \n",res)
Output
Running the above code gives us the following result −
Given list : ['Mon', 'd', 'ay'] List of characters: ['M', 'o', 'n', 'd', 'a', 'y']
With join
The join method can be used to combine all the elements into a single string and then apply the list function which will store each character as a separate string.
Example
listA = ['Mon','d','ay']
# Given lists
print("Given list : \n", listA)
# Convert to int
res = list(''.join(listA))
# Result
print("List of characters: \n",res)
Output
Running the above code gives us the following result −
Given list : ['Mon', 'd', 'ay'] List of characters: ['M', 'o', 'n', 'd', 'a', 'y']
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