Head First Python 第2版 ―頭とからだで覚えるPythonの基本

from datetime import datetime

import pprint

def convert2ampm(time24: str) -> str:

return datetime.strptime(time24, '%H:%M').strftime('%I:%M%p')

with open('buzzers.csv') as data:

ignore = data.readline()

flights = {}

for line in data:

k, v = line.strip().split(',')

flights[k] = v

pprint.pprint(flights)

print()

fts = {convert2ampm(k): v.title() for k, v in flights.items()}

pprint.

pprint(fts)

print()

when = {dest: [k for k, v in fts.items() if v == dest] for dest in set(fts.

values())}

pprint.pprint(when)

print()

import requests

def gen_from_urls(urls: tuple) -> tuple:

for resp in (requests.get(url) for url in urls):

yield len(resp.content), resp.status_code, ...