How to delete the first line of a text file?

Question

I have been searching online, but have not found any good solution.

Here is my text file:

[54, 95, 45, -97, -51, 84, 0, 32, -55, 14, 50, 54, 68, -3,          


        

Answer 1

This solution will work for big files that don't fit into memory by reading and writing one line at a time:

import os
from shutil import move
from tempfile import NamedTemporaryFile

# Take off the first line which has the system call and params
file_path = 'xxxx'
temp_path = None
with open(file_path, 'r') as f_in:
    with NamedTemporaryFile(mode='w', delete=False) as f_out:
        temp_path = f_out.name
        next(f_in)  # skip first line
        for line in f_in:
            f_out.write(line)

os.remove(file_path)
move(temp_path, file_path)