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kdoroschak/progress_bar.py

Created October 24, 2017 03:03
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Python 2.7 for loop progress bar
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progress_bar.py
''' Python 2.7 progress bar
Code mostly taken from:
https://stackoverflow.com/questions/3173320/text-progress-bar-in-the-console
I usually use this for simple for loops with long iterations to make sure it's
actually progressing without polluting stdout.
'''
import sys
n_iterations = 100
bar_len = 60
# Assuming the loop always starts from 0
for iterations_done in range(0, n_iterations):
filled_len = int(round(bar_len * (iterations_done + 1) /
float(n_iterations)))
percents = round(100.0 * iterations_done / float(n_iterations), 1)
bar = '=' * filled_len + '-' * (bar_len - filled_len)
sys.stdout.write('[%s] %s%s, %d of %d\r' % (bar, percents, '%',
iterations_done + 1,
n_iterations))
sys.stdout.flush()
# Do stuff here
filled_len = bar_len
percents = 100.
bar = '=' * filled_len + '-' * (bar_len - filled_len)
sys.stdout.write('[%s] %s%s \r' % (bar, percents, '%'))
sys.stdout.flush()
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