# Open the original file

with open('original_file.txt', 'r') as original_file:

    # Read the first 100 lines

    lines = original_file.readlines()[:100]

​

# Open or create a new file

with open('new_file.txt', 'w') as new_file:

    # Write the first 100 lines into the new file

    new_file.writelines(lines)