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

This is a Python Program to count the occurrences of a word in a text file.

Problem Description

The program takes a word from the user and counts the number of occurrences of that word in a file.

Problem Solution

1. Take the file name and the word to be counted from the user.
2. Read each line from the file and split the line to form a list of words.
3. Check if the word provided by the user and any of the words in the list are equal and if they are, increment the word count.
4. Exit.

Program/Source Code

Here is source code of the Python Program to count the occurrences of a word in a text file. The program output is also shown below.

fname = input("Enter file name: ")
word=input("Enter word to be searched:")
k = 0
 
with open(fname, 'r') as f:
    for line in f:
        words = line.split()
        for i in words:
            if(i==word):
                k=k+1
print("Occurrences of the word:")
print(k)
Program Explanation

1. User must enter a file name and the word to be searched.
2. The file is opened using the open() function in the read mode.
3. A for loop is used to read through each line in the file.
4. Each line is split into a list of words using split().
5. Another for loop is used to traverse through the list and each word in the list is compared with the word provided by the user.
6. If both the words are equal, the word count is incremented.
7. The final count of occurrences of the word is printed.

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Runtime Test Cases
 
Case 1:
Contents of file: 
hello world hello
hello
 
Output: 
Enter file name: test.txt
Enter word to be searched:hello
Occurrences of the word:
3
 
Case 2:
Contents of file: 
hello world  
test
test test
 
Output: 
Enter file name: test1.txt
Enter word to be searched:test
Occurrences of the word:
4

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Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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