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javisantana/carto.py

Last active November 17, 2021 07:28
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carto.py
import urllib,sys,csv;
print reduce(lambda p, new: (p[0] + (new - p[0])/p[1], p[1] + 1), map(float, (x['tip_amount'] for x in csv.DictReader(urllib.urlopen(sys.argv[1])))), (0, 1))
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