Simple progress bar without external dependencies. Adapted from https://stackoverflow.com/a/34482761

progressbar.py

import os
import sys


def progressbar(it, prefix="", file=sys.stdout):
    count = len(it)
    num_bar_chars = 5
    width = os.get_terminal_size().columns - (
        len(prefix) + len(str(count)) * 2 + num_bar_chars
    )

    def show(j):
        x = int(width * j / count)
        file.write("%s[%s%s] %i/%i\r" % (prefix, "#" * x, "." * (width - x), j, count))
        file.flush()

    show(0)
    for i, item in enumerate(it):
        yield item
        show(i + 1)
    file.write("\n")
    file.flush()


if __name__ == "__main__":
    import time
    
    for i in progressbar(range(0, 10), "Processing: "):
        time.sleep(0.5)
        
# Final output:
# Processing: [#################################################] 10/10