How to edit a file to increase the size by adding white spaces at end in python

Question

I want to first create a copy of a file and then check the size of the file and if the size is less than 1 MB then add white spaces at end of the file to make it 1 MB size.

I have copied the using below code but I am getting any help for adding white spaces at end of the file.

from shutil import copyfile
copyfile(self.actualfile,self.copyfile)

Answer 1

you can do it like this:

import os

filename = 'file.txt'

size = os.stat(filename).st_size

f = open(filename, "a+")
f.write(" " * (1024*1024 - size))
f.close();