python使用pip出错、显示ssl_python – Windows上的Pip SSL错误
我在没有完全控制入站/出站流量处理的环境中在
Windows 7 64位上使用
Python 3.x.直到本周,我已经能够使用带有pip的–trusted-host pypi.python.org标志,一切正常.本周,即使使用–trusted-host标志,我也开始收到以下错误.
Could not fetch URL https://pypi.python.org/simple/pytubes/: There was a probl
em confirming the ssl certificate: [SSL: CERTIFICATE_VERIFY_FAILED] certificate
verify failed (_ssl.c:720) - skipping
鉴于本周的pypi变化,我尝试将–trusted-host标志更改为https://files.pythonhosted.org/packages/,但这似乎没有帮助.
我还尝试下载和安装certifi,wincerstore和win32 certifi的轮子以及针对此类问题的其他stackoverflow建议,例如digistore .pem cert和pip.ini文件,但没有任何成功.
对于curl下载,我必须传递-k in,并且运行python get-pip.py会失败,并且pip会出现类似的ssl错误：
Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:749)'),)': /simple/pip/
Could not fetch URL https://pypi.org/simple/pip/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/pip/ (Caused by SSLError(SSLError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:749)'),)) - skipping
Could not find a version that satisfies the requirement pip (from versions: )
No matching distribution found for pip
Could not fetch URL https://pypi.org/simple/pip/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/pip/ (Caused by SSLError(SSLError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:749)'),)) - skipping
感谢.pem文件,Python CA包和–trusted-host标志没有做的后续步骤的任何建议
编辑：
pip中的-vvv标志的新输出来自下面的答案.
> pip install pytubes -vvv
Config variable 'Py_DEBUG' is unset, Python ABI tag may be incorrect
Config variable 'WITH_PYMALLOC' is unset, Python ABI tag may be incorrect
Collecting pytubes
1 location(s) to search for versions of pytubes:
* https://pypi.python.org/simple/pytubes/
Getting page https://pypi.python.org/simple/pytubes/
Looking up "https://pypi.python.org/simple/pytubes/" in the cache
No cache entry available
Starting new HTTPS connection (1): pypi.python.org
Could not fetch URL https://pypi.python.org/simple/pytubes/: There was a probl
em confirming the ssl certificate: [SSL: CERTIFICATE_VERIFY_FAILED] certificate
verify failed (_ssl.c:749) - skipping
Could not find a version that satisfies the requirement pytubes (from versions
: )
Cleaning up...
No matching distribution found for pytubes
Exception information:
Traceback (most recent call last):
File "C:\ProgramData\Anaconda3\lib\site-packages\pip\basecommand.py", line 215
, in main
status = self.run(options, args)
File "C:\ProgramData\Anaconda3\lib\site-packages\pip\commands\install.py", lin
e 335, in run
wb.build(autobuilding=True)
File "C:\ProgramData\Anaconda3\lib\site-packages\pip\wheel.py", line 749, in b
uild
self.requirement_set.prepare_files(self.finder)
File "C:\ProgramData\Anaconda3\lib\site-packages\pip\req\req_set.py", line 380
, in prepare_files
ignore_dependencies=self.ignore_dependencies))
File "C:\ProgramData\Anaconda3\lib\site-packages\pip\req\req_set.py", line 554
, in _prepare_file
require_hashes
File "C:\ProgramData\Anaconda3\lib\site-packages\pip\req\req_install.py", line
278, in populate_link
self.link = finder.find_requirement(self, upgrade)
File "C:\ProgramData\Anaconda3\lib\site-packages\pip\index.py", line 514, in f
ind_requirement
'No matching distribution found for %s' % req
pip.exceptions.DistributionNotFound: No matching distribution found for pytubes
Looking up "https://pypi.python.org/pypi/pip/json" in the cache
No cache entry available
Starting new HTTPS connection (1): pypi.python.org
There was an error checking the latest version of pip
Traceback (most recent call last):
File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\requests\packages
\urllib3\connectionpool.py", line 595, in urlopen
chunked=chunked)
File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\requests\packages
\urllib3\connectionpool.py", line 352, in _make_request
self._validate_conn(conn)
File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\requests\packages
\urllib3\connectionpool.py", line 831, in _validate_conn
conn.connect()
File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\requests\packages
\urllib3\connection.py", line 289, in connect
ssl_version=resolved_ssl_version)
File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\requests\packages
\urllib3\util\ssl_.py", line 308, in ssl_wrap_socket
return context.wrap_socket(sock, server_hostname=server_hostname)
File "C:\ProgramData\Anaconda3\lib\ssl.py", line 401, in wrap_socket
_context=self, _session=session)
File "C:\ProgramData\Anaconda3\lib\ssl.py", line 808, in __init__
self.do_handshake()
File "C:\ProgramData\Anaconda3\lib\ssl.py", line 1061, in do_handshake
self._sslobj.do_handshake()
File "C:\ProgramData\Anaconda3\lib\ssl.py", line 683, in do_handshake
self._sslobj.do_handshake()
ssl.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c
:749)
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\requests\adapters
.py", line 423, in send
timeout=timeout
File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\requests\packages
\urllib3\connectionpool.py", line 621, in urlopen
raise SSLError(e)
pip._vendor.requests.packages.urllib3.exceptions.SSLError: [SSL: CERTIFICATE_VER
IFY_FAILED] certificate verify failed (_ssl.c:749)
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\ProgramData\Anaconda3\lib\site-packages\pip\utils\outdated.py", line
126, in pip_version_check
headers={"Accept": "application/json"},
File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\requests\sessions
.py", line 488, in get
return self.request('GET', url, **kwargs)
File "C:\ProgramData\Anaconda3\lib\site-packages\pip\download.py", line 386, i
n request
return super(PipSession, self).request(method, url, *args, **kwargs)
File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\requests\sessions
.py", line 475, in request
resp = self.send(prep, **send_kwargs)
File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\requests\sessions
.py", line 596, in send
r = adapter.send(request, **kwargs)
File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\cachecontrol\adap
ter.py", line 47, in send
resp = super(CacheControlAdapter, self).send(request, **kw)
File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_vendor\requests\adapters
.py", line 497, in send
raise SSLError(e, request=request)
pip._vendor.requests.exceptions.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certi
ficate verify failed (_ssl.c:749)