ssl.SSLError: [SSL: TLSV1_ALERT_PROTOCOL_VERSION] tlsv1 alert protocol version错误

Python
留言

今天在写一个demo的时候，报了这个错误。代码如下:

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import requests

r = requests.get("https://github.com/favicon.ico")
with open('favicon.ico', 'wb') as f:
    f.write(r.content)

运行报错，错误消息如下:

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Traceback (most recent call last):
  File "/Users/FQY/env350/lib/python3.5/site-packages/urllib3/connectionpool.py", line 600, in urlopen
    chunked=chunked)
  File "/Users/FQY/env350/lib/python3.5/site-packages/urllib3/connectionpool.py", line 343, in _make_request
    self._validate_conn(conn)
  File "/Users/FQY/env350/lib/python3.5/site-packages/urllib3/connectionpool.py", line 849, in _validate_conn
    conn.connect()
  File "/Users/FQY/env350/lib/python3.5/site-packages/urllib3/connection.py", line 356, in connect
    ssl_context=context)
  File "/Users/FQY/env350/lib/python3.5/site-packages/urllib3/util/ssl_.py", line 359, in ssl_wrap_socket
    return context.wrap_socket(sock, server_hostname=server_hostname)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/ssl.py", line 376, in wrap_socket
    _context=self)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/ssl.py", line 747, in __init__
    self.do_handshake()
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/ssl.py", line 983, in do_handshake
    self._sslobj.do_handshake()
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/ssl.py", line 628, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLError: [SSL: TLSV1_ALERT_PROTOCOL_VERSION] tlsv1 alert protocol version (_ssl.c:646)

网上百度都说的是要升级pip或者python，因为我用的是python3.5，应该不是这个问题，所以应该升级openssl
升级

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$ pip install pyopenssl

这时候在运行就没问题了。

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