progress_bar.py

import sys

class ProgressBar:
    def __init__(self, title: str, width: int):
        self.title = title
        self.width = width
        self.amount = 0
        self.update(0)

    def update(self, amount: int) -> None:
        "amount is 0 - 100"
        self.amount = amount
        fill = round(amount * self.width / 100)
        self.clear()
        sys.stdout.write("\r{}  [{}{}]   {:3d}%\r".format(self.title, "#" * fill, " " * (self.width - fill), amount))
        sys.stdout.flush()

    def clear(self) -> None:
        sys.stdout.write("\r{}\r".format(" " * (len(self.title) + self.width + 15)))
        sys.stdout.flush()