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Progress bar for terminal

Project description

Awesome progress bar

It's a progress bar for the terminal. But why it is awesome?

  • It has thread mode. This way progress bar can run in the parallel.
  • It's animated with ASCII characters.
  • It also measures elapsed time.
  • It's user-friendly and customizable.

Why does progress bar need to be run in the parallel mode?

The bar should be updated when it is time to. Imagine we are doing something in the for loop and each iteration we update its state. But each iteration can take different amount of time. And each iteration can be longer than 1 minute. And without threads the animation would have non-constant amount of FPS.


How to use

Initialization

Parameters:

total Amount of iterations
prefix A short message before the progress bar. Default is 'Progress'
suffix A short message after the progress bar. Default is ''
fill A character that will be used as progress bar filler. Default is '='
bar_length The length of the whole string (including prefix, spinner, progress bar, percents and suffix). Default is equal to the minimum between terminal's width and 100
update_period The duration of pause between iterations in seconds. Default is 0.1. Works only if use_thread is True
use_time If True there will be an information about elapsed time in the center of the progress bar written in time_format format. Default is True
time_format String, that should include 'hh', 'mm' or/and 'ss'. 'hh' will be replaced with amount of elapsed hours, 'mm' - minutes, 'ss' - seconds. Default is 'mm:ss'
use_thread If True ProgressBar will create extra thread. Default is True
spinner_type One of ['sb', 'db', 's']. With 'sb' progress bar will print spinner consisting of 1 Braille pattern. 'db' - 2 Braille patterns. 's' - a slash. Default is 'sb'
use_spinner If True the spinner will be shown. Default is True
last_char Something, that will be printed after the progress is done. Default is '\n'
use_eta If True the information about approximate remaining time will be printed. Default is False
eta_format The format of ETA. Similar to the time_format. Default is equal to the time_format

Methods

iter(append='')

Used for tracking the progress.

  • In the thread mode only increases the number of iteration.
  • Without extra thread bar.iter() prints the bar each time user call it.
Parameters:
  • append: A string to append after the bar. The appended text doesn't effect on the progress bar width.
get_time_passed (return_str=True)

Returns the time spent.

If the progress is done returns bar's operating time. If not - returns the time elapsed from the progress start.

Parameters:
  • return_str: If True returns time in the time_format format. If not returns just amount of seconds
stop()

Stops the bar in the thread mode.

If the bar doesn't call the iter function the required number of times, the created thread will run until you call the stop function.

wait()

Blocks the program until bar is dead.

The bar updates every update_period seconds in the thread mode. Hence, there can be a small delay between last calling bar.iter() and next try for printing something. So, if you want to print anything after the progress is done be aware to use bar.wait()

* stop() and wait() are needed only in the thread mode.

Examples

from awesome_progress_bar import ProgressBar
import time

total = 133
bar = ProgressBar(total, bar_length=50)
try:
    for x in range(total):
        time.sleep(0.1)
        bar.iter(' Appended')
except:
    bar.stop()
bar.wait()
print('Bar is done')

# Progress: |=========== 00:15 ============| 100.00% Appended
# Bar is done
from awesome_progress_bar import ProgressBar

bar = ProgressBar(100, prefix='Prefix', suffix='Suffix', use_eta=True, bar_length=70)
# Prefix: в ‡ |==>             00:00/00:14                |   5.26% Suffix

bar = ProgressBar(100, fill='#', use_time=False, bar_length=50, use_spinner=False)
# Progress: |##########>                   |  33.83%

bar = ProgressBar(100, time_format='hhh mmmin sss', bar_length=70, spinner_type='s')
# Progress: - |=======>         00h 00min 02s                  |  16.54%

bar = ProgressBar(100, bar_length=70, spinner_type='db')
# Progress: вў€вЎ± |===========>         00:04                     |  24.81%

See more here.


Feel free to suggest ideas to improve this package in the GitHub's Issues section.

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