word count string python code example

Example 1: Python Program to Count the Occurrences of a Word in a Text File

#get file object reference to the file
file = open("C:\workspace\python\data.txt", "r")
#read content of file to string
data = file.read()
#get number of occurrences of the substring in the string
occurrences = data.count("python")
print('Number of occurrences of the word :', occurrences)

Example 2: count substring in string python

def count_substring(string,sub_string):
    l=len(sub_string)
    count=0
    for i in range(len(string)-len(sub_string)+1):
        if(string[i:i+len(sub_string)] == sub_string ):      
            count+=1
    return count