Python Script to Replace Text in a File

Here is an example of a Python script that replaces a specific text in a file:

import os

# specify the file path
file_path = '/path/to/file.txt'

# specify the text to be replaced and the replacement text
old_text = 'old_text'
new_text = 'new_text'

# open the file and read its contents
with open(file_path, 'r') as file:
    file_contents = file.read()

# replace the text
new_contents = file_contents.replace(old_text, new_text)

# open the file again in write mode
with open(file_path, 'w') as file:
    file.write(new_contents)

This script opens the file at the specified path, reads its contents, replaces the old text with the new text, and writes the new contents back to the file. You can change the file path, old text, and new text to suit your needs. Also, you can use the glob library to find all the files with a specific extension, and then use the above script to replace the text in each file.