SSL证书的pip3.4问题，但不是pip

Question

我正在尝试在MacOs X中使用pip为python3.4安装库。系统还提供了python2.7本机版本。 所以，这很好

> pip install numpy
Requirement already satisfied (use --upgrade to upgrade): numpy in 
/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages
Cleaning up...

但是当我尝试为python3.4安装时

pip3.4 install numpy

我懂了

Downloading/unpacking numpy
  Could not fetch URL https://pypi.python.org/simple/numpy/: There was a 
problem confirming the ssl certificate: [SSL: CERTIFICATE_VERIFY_FAILED] 
certificate verify failed (_ssl.c:598)
  Will skip URL https://pypi.python.org/simple/numpy/ when looking for 
download links for numpy
  Could not fetch URL https://pypi.python.org/simple/: There was a 
problem confirming the ssl certificate: [SSL: CERTIFICATE_VERIFY_FAILED] 
certificate verify failed (_ssl.c:598)
  Will skip URL https://pypi.python.org/simple/ when looking for download 
links for numpy
  Cannot fetch index base URL https://pypi.python.org/simple/
  Could not fetch URL https://pypi.python.org/simple/numpy/: There was a 
problem confirming the ssl certificate: [SSL: CERTIFICATE_VERIFY_FAILED] 
certificate verify failed (_ssl.c:598)
  Will skip URL https://pypi.python.org/simple/numpy/ when looking for 
download links for numpy
  Could not find any downloads that satisfy the requirement numpy
  Cleaning up...
No distributions at all found for numpy

我读过pip 1.5版存在问题。 尤其是

> pip --version
pip 1.2.1 from /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip-1.2.1-py2.7.egg (python 2.7)

而

> pip3.4 --version
pip 1.5 from /Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/pip-1.5-py3.4.egg (python 3.4)

这是我的问题吗？ 我该如何解决？

Answer 1

如果证书无效，理想情况下，您应该导入系统并将其标记为受信任（如果您确实信任），并通过以下方式指定：

pip --cert file.pem install numpy

或使用--trusted-host参数，例如：

pip --trusted-host https://pypi.python.org/simple/numpy/ install numpy

将该主机标记为受信任的主机，即使它没有有效的证书也是如此。

另请参阅： SSL证书验证 。