Python File I/O: Read a random line from a file

Last update on March 31 2025 12:54:37 (UTC/GMT +8 hours)

15. Random Line Reader

Write a Python program to read a random line from a file.

Sample Solution:-

Python Code:

import random
def random_line(fname):
    lines = open(fname).read().splitlines()
    return random.choice(lines)
print(random_line('test.txt'))

Sample Output:

Append this text.

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Python program to randomly select and print one non-empty line from a text file without loading the entire file into memory.
• Write a Python program to choose a random line from a file and count the number of characters in that line.
• Write a Python script to pick a random line from a file, convert it to uppercase, and print the result.
• Write a Python program to select a random line from a file and check if it contains a specified keyword.

Python Code Editor:

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