Terminal progress bar with python

main.py

import time
import math
import os

rows, columns = os.popen('stty size', 'r').read().split()
# `[]` (2) + precent (5)
terminal_progress_fill = int(columns) - 7

current_progress = 0
while current_progress <= 100:
  per = terminal_progress_fill / 100
  current = math.floor(per * current_progress)

  completed_progress_line = '=' * current
  unfinished_progress_line = ' ' * (terminal_progress_fill - current)
  current_progress_line = '[{}{}]'.format(completed_progress_line, unfinished_progress_line)

  current_progress_precent = '{}%'.format('%3d' % current_progress)

  current_progress_str = '{} {}'.format(current_progress_line, current_progress_precent)
  print(current_progress_str, end="\r")

  current_progress += 1
  time.sleep(0.01)

print('finish')