console_progress.py

import sys
import time


def progressbar(it, prefix = "", size = 60):
    count = len(it)
    def _show(_i):
        x = int(size*_i/count)
        sys.stdout.write("%s[%s>%s] %i/%i\r" % (prefix, "="*x, "-"*(size-x), _i, count))
        sys.stdout.flush()
    
    _show(0)
    for i, item in enumerate(it):
        yield item
        _show(i+1)
    sys.stdout.write("\n")
    sys.stdout.flush()
    
    
for i in progressbar(range(15), "Computing: ", 40):
    time.sleep(0.1) # long computation

stdout

Computing: [........................................] 0/15

...

Computing: [########................................] 3/15

...

Computing: [########################################] 15/15