stepic python

python

import csv
import operator
from datetime import datetime
def validate_date(d):
    try:
        datetime.strptime(d, r'%m/%d/%Y %H:%M:%S %p')
        return True
    except ValueError:
        return False

with open("Crimes.csv") as f:
    reader = csv.reader(f)
    c = 0
    _dict = dict()
    for line in reader:
        if c == 0:
            c += 1
            continue

        if validate_date(line[2]) and '2015' in line[2]:

            if line[6] not in _dict.keys():
                _dict[line[6]] = 1
            else:
                _dict[line[6]] += 1
__dict = sorted(_dict.items(), key=operator.itemgetter(1), reverse=True)