Method # 1: Using count()
This is a fairly simple method that accomplishes this task. It just counts the occurrence of substrings in the string that we pass as an argument.
# Python3 code to demonstrate how it works # Frequency of substring in a string # Using count () # initialization string test_str = " Python.Engineering is for Geeks " # substring initialization test_sub = "Geeks" # print the original string print ( "The original string is:" + test_str) # print substring print ( "The original substring:" + test_sub) # using count () # Frequency of substring in a string res = test_str.count (test_sub) # print result print ( "The frequency of substring in string is" + str (res)) |
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Output:
The original string is: Python.Engineering is for Geeks The original substring: Geeks The frequency of substring in string is 3
Method # 2: Using len () + split ()
A combination of the above functions can be used to completing this task. This is done in 2 steps, in the first step we split the string into a list by substring and then count the elements that are 1 more than the required value.
# Python3 code for demonstrations # Frequency of substring in a string # Using split () + len () # initialization string test_str = "Python.Engineering is for Geeks" # substring initialization test_sub = "Geeks" # print original string print ( "The original string is: " + test_str) # print substring print ( " The original substring: " + test_sub) # using split () + len () # Frequency of substring in a string res = len (test_str.split (test_sub)) - 1 #result print print ( "The frequency of substring in string is " + str (res)) |
Output:
The original string is: Python.Engineering is for Geeks The original substring: Geeks The frequency of substring in string is 3
Python | The frequency of a substring in a given string Python functions: Questions
Python | The frequency of a substring in a given string String Variables: Questions