Python to print out status bar and percentage

Question

To implement a status bar like below:

[==========                ]  45%
[================          ]  60%
[==========================] 100%

Answer 1

Try PyProg. PyProg is an open-source library for Python to create super customizable progress indicators & bars.

It is currently at version 1.0.2; it is hosted on Github and available on PyPI (Links down below). It is compatible with Python 3 & 2 and it can also be used with Qt Console.

It is really easy to use. The following code:

import pyprog
from time import sleep

# Create Object
prog = pyprog.ProgressBar(" ", " ", total=34, bar_length=26, complete_symbol="=", not_complete_symbol=" ", wrap_bar_prefix=" [", wrap_bar_suffix="] ", progress_explain="", progress_loc=pyprog.ProgressBar.PROGRESS_LOC_END)
# Update Progress Bar
prog.update()

for i in range(34):
    # Do something
    sleep(0.1)
    # Set current status
    prog.set_stat(i + 1)
    # Update Progress Bar again
    prog.update()

# Make the Progress Bar final
prog.end()

will produce exactly what you want (even the bar length!):

[===========               ] 45%
[===============           ] 60%
[==========================] 100%

For more options to customize the progress bar, go to the Github page of this website.

I actually made PyProg because I needed a simple but super customizable progress bar library. You can easily install it with: pip install pyprog.

PyProg Github: https://github.com/Bill13579/pyprog
PyPI: https://pypi.python.org/pypi/pyprog/

Answer 2

Per Steven C. Howell's comment on Mark Rushakoff's answer

j = (i + 1) / n
stdout.write('\r')
stdout.write('[%-20s] %d%%' % ('='*int(20*j), 100*j))
stdout.flush()

where i is the current item and n is the total number of items