progress-bar.py

#!/usr/bin/env python3

import sys
from itertools import cycle
import time

# https://github.com/yarnpkg/berry/blob/e6e035c901ce921af890be9401076f0123e5393d/packages/yarnpkg-core/sources/StreamReport.ts
PROGRESS_FRAMES = cycle(['⠋', '⠙', '⠹', '⠸', '⠼', '⠴', '⠦', '⠧', '⠇', '⠏'])

for i in range(60):
    frame = next(PROGRESS_FRAMES)
    sys.stdout.write(f'\r{frame} \033[K')
    time.sleep(0.05)
sys.stdout.write('\r\033[K')