Python | The frequency of a substring in a given string

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))

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