Question

我正在尝试在Linux Ubuntu 14.04 x64上使用虚拟环境中的pip。

将shell中的pip用作：

pip search bla

它工作正常。

但是从virtualenv使用它会显示错误：

(proj_testing)uxu@box:~$ pip search bla
/home/uxu/.virtualenvs/proj_testing/local/lib/python2.7/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:90: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.
  InsecurePlatformWarning
/home/uxu/.virtualenvs/proj_testing/local/lib/python2.7/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:90: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.
  InsecurePlatformWarning
Exception:
Traceback (most recent call last):
  File "/home/uxu/.virtualenvs/proj_testing/local/lib/python2.7/site-packages/pip/basecommand.py", line 223, in main
    status = self.run(options, args)
  File "/home/uxu/.virtualenvs/proj_testing/local/lib/python2.7/site-packages/pip/commands/search.py", line 43, in run
    pypi_hits = self.search(query, options)
  File "/home/uxu/.virtualenvs/proj_testing/local/lib/python2.7/site-packages/pip/commands/search.py", line 60, in search
    hits = pypi.search({'name': query, 'summary': query}, 'or')
  File "/usr/lib/python2.7/xmlrpclib.py", line 1233, in __call__
    return self.__send(self.__name, args)
  File "/usr/lib/python2.7/xmlrpclib.py", line 1587, in __request
    verbose=self.__verbose
  File "/home/uxu/.virtualenvs/proj_testing/local/lib/python2.7/site-packages/pip/download.py", line 785, in request
    headers=headers, stream=True)
  File "/home/uxu/.virtualenvs/proj_testing/local/lib/python2.7/site-packages/pip/_vendor/requests/sessions.py", line 508, in post
    return self.request('POST', url, data=data, json=json, **kwargs)
  File "/home/uxu/.virtualenvs/proj_testing/local/lib/python2.7/site-packages/pip/download.py", line 373, in request
    return super(PipSession, self).request(method, url, *args, **kwargs)
  File "/home/uxu/.virtualenvs/proj_testing/local/lib/python2.7/site-packages/pip/_vendor/requests/sessions.py", line 465, in request
    resp = self.send(prep, **send_kwargs)
  File "/home/uxu/.virtualenvs/proj_testing/local/lib/python2.7/site-packages/pip/_vendor/requests/sessions.py", line 573, in send
    r = adapter.send(request, **kwargs)
  File "/home/uxu/.virtualenvs/proj_testing/local/lib/python2.7/site-packages/pip/_vendor/cachecontrol/adapter.py", line 46, in send
    resp = super(CacheControlAdapter, self).send(request, **kw)
  File "/home/uxu/.virtualenvs/proj_testing/local/lib/python2.7/site-packages/pip/_vendor/requests/adapters.py", line 431, in send
    raise SSLError(e, request=request)
SSLError: [Errno 1] _ssl.c:510: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed

没有意义，任何人都有想法？

Answer 1

尝试像pip search bla

那样执行superuser

对于ubuntu，命令是：

sudo pip search bla

Answer 2

From https://urllib3.readthedocs.org/en/latest/security.html:

Certain Python platforms (specifically, versions of Python earlier than 2.7.9) have restrictions in their ssl module that limit the configuration that urllib3 can apply. In particular, this can cause HTTPS requests that would succeed on more featureful platforms to fail, and can cause certain security features to be unavailable. If you encounter this warning, it is strongly recommended you upgrade to a newer Python version, or that you use pyOpenSSL as described in the OpenSSL / PyOpenSSL section.

You probably have a less recent version of python in your virtual environment. Perhaps this is why this error only occurs in the virtual environment.

为什么pip在虚拟环境中不起作用？

2 个答案: