【Python工具包/库推荐系列】- requests
编写发送HTTP请求的代码可能很棘手，这在很大程度上要归因于HTTP并未以人类易于阅读的方式精确地格式化数据。Requests Python程序包（座右铭：“ HTTP for Humans”）通过自动执行许多繁琐的任务来解决此问题，让发送HTTP请求变得异常简单。它消除了添加查询字符串或执行POST表单编码的需要。它还可以使与HTTP服务器的连接自动保持活动状态，从而无需编写大量代码。[code]
import requests
from requests.exceptions import HTTPError
for url in ['https://api.github.com', 'https://api.github.com/invalid']:
try:
response = requests.get(url)
# If the response was successful, no Exception will be raised
response.raise_for_status()
except HTTPError as http_err:
print(f'HTTP error occurred: {http_err}') # Python 3.6
except Exception as err:
print(f'Other error occurred: {err}') # Python 3.6
else:
print('Success!')
[/code]简而言之，如果您的应用程序通过HTTP发送任何数据，则请求是必不可少的程序包。
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