Question

当我尝试访问http://www.acastipharma.com/网站时，出现请求模块异常错误。我的任何其他网站都没有问题，所以我认为这是网站特定的问题。这是一些示例代码

import requests
initialURL = 'http://www.acastipharma.com/'
r = requests.get(initialURL)

运行此代码时，我收到一条错误消息，结尾为

requests.exceptions.SSLError: HTTPSConnectionPool(host='www.acastipharma.com', port=443): Max retries exceeded with url: /investors/ (Caused by SSLError(SSLError(1, '[SSL: SSLV3_ALERT_HANDSHAKE_FAILURE] sslv3 alert handshake failure (_ssl.c:645)'),))

互联网搜索表明问题可能出在acastipharma的SSL证书上。我尝试安装pyopenssl以确保我具有检查SSL证书的模块的最新版本，但这不能解决问题。我还尝试了运行带有verify = False选项的requests.get语句，但这也没有成功。

r = requests.get(initialURL, verify=False)

如果有人对如何解决此问题有任何想法，请提供帮助。我还尝试使用旧的urllib.request包，但遇到了相同的错误。

这是对我原始问题的更新：我发布的错误消息是由于尝试在acastipharma的网站子页面之一上运行请求命令而引起的，这是当我完全按照如下所示运行代码时收到的完整错误消息这个问题：

    Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/urllib3/connectionpool.py", line 601, in urlopen
    chunked=chunked)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/urllib3/connectionpool.py", line 346, in _make_request
    self._validate_conn(conn)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/urllib3/connectionpool.py", line 850, in _validate_conn
    conn.connect()
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/urllib3/connection.py", line 326, in connect
    ssl_context=context)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/urllib3/util/ssl_.py", line 329, 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: SSLV3_ALERT_HANDSHAKE_FAILURE] sslv3 alert handshake failure (_ssl.c:645)
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/requests/adapters.py", line 440, in send
    timeout=timeout
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/urllib3/connectionpool.py", line 639, in urlopen
    _stacktrace=sys.exc_info()[2])
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/urllib3/util/retry.py", line 388, in increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='www.acastipharma.com', port=443): Max retries exceeded with url: / (Caused by SSLError(SSLError(1, '[SSL: SSLV3_ALERT_HANDSHAKE_FAILURE] sslv3 alert handshake failure (_ssl.c:645)'),))
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "<input>", line 1, in <module>
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/requests/api.py", line 72, in get
    return request('get', url, params=params, **kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/requests/api.py", line 58, in request
    return session.request(method=method, url=url, **kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/requests/sessions.py", line 508, in request
    resp = self.send(prep, **send_kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/requests/sessions.py", line 640, in send
    history = [resp for resp in gen] if allow_redirects else []
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/requests/sessions.py", line 640, in <listcomp>
    history = [resp for resp in gen] if allow_redirects else []
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/requests/sessions.py", line 218, in resolve_redirects
    **adapter_kwargs
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/requests/sessions.py", line 618, in send
    r = adapter.send(request, **kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/requests/adapters.py", line 506, in send
    raise SSLError(e, request=request)
requests.exceptions.SSLError: HTTPSConnectionPool(host='www.acastipharma.com', port=443): Max retries exceeded with url: / (Caused by SSLError(SSLError(1, '[SSL: SSLV3_ALERT_HANDSHAKE_FAILURE] sslv3 alert handshake failure (_ssl.c:645)'),))

我正在使用Python 3.5.1。我在使用High Sierra版本10.13.2的Mac上。我正在使用2.18.4的请求。自发布问题以来，我相信问题在于我的IDE PyCharm的环境。如果我使用Python 3.5环境，则会遇到此问题中所示的问题，如果我将项目解释器切换到Python 3.6 Anaconda环境，请求将可以正常工作，但是不幸的是，mysql无法导入。谢谢

Answer 1

OpenSSL版本为OpenSSL 0.9.8zh 2016年1月14日

此OpenSSL版本（非常老旧且不受支持）不支持此特定Web服务器所需的较新密码。该服务器仅支持ECDHE密钥交换，OpenSSL 0.9.8尚不支持该交换。这意味着客户端仅向服务器提供服务器不接受的密码，并且由于没有通用密码，服务器将使用SSL握手警报关闭连接。

Answer 2

我们可以使用以下方法忽略此SSL错误：

import warnings
from urllib3.exceptions import  InsecureRequestWarning
warnings.simplefilter('ignore',InsecureRequestWarning)

Python请求模块异常SSLError

2 个答案: