Resize or Truncate Text File to specific size in Python

Resize or truncate text file to specific size in Python

To resize or truncate a text file to specific size in Python, we can use file.truncate() function.

Pass the desired size (integer value) as argument to truncate() function.

Example

In the following example, we will take a text file located at myfolder/sample.txt path and truncate the data in the file to a size of 25.

Original file

Python Program

import os

path_to_file = "myfolder/sample.txt"

with open(path_to_file, 'a') as file:
    file.truncate(25)
    print('File truncated successfully.')

Output

File truncated successfully.

with statement implicitly takes care of closing the file.

Resulting sample.txt

Summary

In this tutorial of Python Examples, we learned how to resize or truncate a text file using truncate() function, with the help of example programs.