import time
import progressbar

for item in progressbar.progressbar(range(100), desc='Loading'):
    time.sleep(0.02)

"""A build log printing above a progress bar without corrupting it."""

from __future__ import annotations

import time

import progressbar

STEPS = 24


def main() -> None:
    with progressbar.ProgressBar(
        max_value=STEPS,
        prefix='Build ',
        redirect_stdout=True,
    ) as bar:
        for step in range(STEPS):
            if step in {8, 16}:
                print(f'log: completed step {step}')
            bar.update(step + 1)
            # Longer than the bar's 0.05s update gate, so every step
            # lands as a visible redraw.
            time.sleep(0.1)


if __name__ == '__main__':
    main()

"""Two named bars progressing at different rates in one terminal."""

from __future__ import annotations

import sys
import time

import progressbar

STEPS = 24


def main() -> None:
    with progressbar.MultiBar(fd=sys.stdout) as multibar:
        build = multibar['build']
        test = multibar['test']
        build.max_value = STEPS
        test.max_value = STEPS
        for step in range(STEPS):
            build.update(step + 1)
            test.update(min(STEPS, max(0, round((step - 3) * 1.2))))
            # Longer than the bars' 0.05s update gate, so every step
            # lands as a visible redraw.
            time.sleep(0.1)

        # Reaching max_value doesn't finish a bar -- only finish() does.
        # A MultiBar waits for every bar to report finished() before its
        # context manager can exit, so without these calls the block
        # above would hang forever on exit.
        build.finish()
        test.finish()


if __name__ == '__main__':
    main()

"""A bar for work whose total is not known up front."""

from __future__ import annotations

import time

import progressbar


def main() -> None:
    with progressbar.ProgressBar(
        max_value=progressbar.UnknownLength,
    ) as bar:
        for value in range(0, 120, 10):
            bar.update(value)
            # Longer than the bar's 0.05s update gate, so every step
            # lands as a visible redraw.
            time.sleep(0.1)


if __name__ == '__main__':
    main()