progbarr 1.0.1

Progbarr is a Python library for efficiently creating customizable progress bars in the console.

Progbarr

Progbarr is a Python library for efficiently creating customizable progress bars in the console.

Features

• Supports setting any UNICODE character for fill, placeholder, or borders
• Supports setting foreground and background color
• Supports 140+ HTML color names, all RGB values, and all HEX color codes

Installation

pip install progbarr

Usage

A progress bar is an instance of the ProgressBar class.

Syntax

with ProgressBar(job, tasks, length, chars, color, bgcolor) as pb:
    for _ in range(tasks):
      # Perform some task
      pb.advance()

The table below explains the parameters of the ProgressBar constructor:

Parameter	Type	Purpose
job	str	Overall job being done
tasks	int	Number of tasks to be performed
length	int	Length of the progress bar
chars	str	Characters used by progress bar
color	str / None	Foreground color of progress bar
bgcolor	str / None	Background color of progress bar

Notes

• job should be in present participle form e.g., "Sleeping" instead of "Sleep".
• length should be equal to or a factor of tasks for a smooth progress.
• chars should be made up of 1 or more characters (maximum 4) representing fill, placeholder, border-left, and border-right, respectively.
• color and bgcolor are both optional (default is None).

Example

from time import sleep
from progbarr import ProgressBar

with ProgressBar("Sleeping", 5, 20, "# []", "green", "white") as pb:
    for _ in range(5):
        sleep(1)
        pb.advance()

Benchmarking

The main goal of progbarr is to take unnoticeable processing time when displaying a progress bar. This means that the time taken to do looped tasks without a progress bar is approximately equal to the time taken to do the tasks with a progress bar. Therefore, the overhead (if any) is negligible.

The example below shows the amount of time taken to perform a sleep of 1 second for 5 times with and without a progress bar.

from time import sleep, time
from progbarr import ProgressBar


def benchmark_with_progressbar():
    with ProgressBar('Sleeping', 5, 20, '# []', None, None) as pb:
        for _ in range(5):
            sleep(1)
            pb.advance()


def benchmark_without_progressbar():
    for _ in range(5):
        sleep(1)


start_time_with_progressbar = time()
benchmark_with_progressbar()
stop_time_with_progressbar = time()

start_time_without_progressbar = time()
benchmark_without_progressbar()
stop_time_without_progressbar = time()

time_taken_with_progressbar = stop_time_with_progressbar - start_time_with_progressbar
time_taken_without_progressbar = stop_time_without_progressbar - start_time_without_progressbar

difference = time_taken_with_progressbar - time_taken_without_progressbar
overhead = round(difference/time_taken_without_progressbar*100,3)

print(f"With progress bar   : {time_taken_with_progressbar}")
print(f"Without progress bar: {time_taken_without_progressbar}")
print(f"Difference          : {difference}")
print(f"Overhead            : {overhead}%")

License

This project is licensed under the MIT License – see the LICENSE file for details.