simplest_py3_writefile_and_size.py

import os 
from hurry.filesize import size, si
filename = "test.txt"
limit = 1000000
var = "filenames.wiff"
with open(filename, 'w') as out:
	for f in range(0,limit):
		out.write(var + '\n')

s = os.path.getsize("/tmp/{x}".format(x=filename))
print(size(s, system=si))