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import datetime
import gzip
import csv
from glob import glob
import ciso8601
cutoff = datetime.datetime.utcnow().replace(
) - datetime.timedelta(days=6 * 30)
def count(fn):
count = total = 0
with, 'rt') as f:
reader = csv.reader(f)
for line in reader:
lastmodified = ciso8601.parse_datetime(line[3])
if lastmodified > cutoff:
count += 1
total += 1
return total, count
def run():
total = recent = 0
# for fn in glob('*.csv.gz'):
for i, fn in enumerate(glob('*.csv.gz')):
if len(fn) == 39:
print(i + 1, fn)
t, c = count(fn)
total += t
recent += c
print('{:.1f}%'.format(100 * recent / total))
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