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# Python | The frequency of a substring in a given string

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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.

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` # 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 `

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