Download thing

get.py

#!/usr/bin/env python3
import urllib.request as m
from time import *
p = print
def get(u, t=None, w=80):
    p('[get] %s...' % u)
    r, a, o, ls, w = time(), [0 for i in range(20)], 0, -1, w - 23
    def _(b, bs, fs):
        nonlocal o, ls
        s, i = int((time() - r) * 10) % 20, b * bs
        a[s] = (0 if ls != s else a[s]) + (i - o)
        ls, o, n, c  = s, i, sum(a), 0 if i == 0 else 100 / fs * i
        for x, i in [('by', 0), ('KB', 1), ('MB', 1)]:
            if n < 1024.0:
                q = c, ("%3." + str(i) + "f%s") % (n, x), '=' * int(w * (c / 100)), w
                p(('[%s] [{1:>8}/s] [{2:-<{3}}]' % '{0:>4.1f}%' if c < 100 else 'Done.').format(*q), end='\r' if c < 100 else '\n')
                break
            n /= 1024.0
    return m.urlretrieve(u, t, _)

why you no normal variable name