畫中畫凍結不顯示包

Question

例如，如果使用PIP像這樣安裝後旋風：

pip install tornado 
Collecting tornado 
... 
Successfully installed backports-abc certifi singledispatch six tornado 

pip freeze列表不返回龍捲風包，它只是顯示：

PyMySQL==0.7.2 

還當我運行easy_install它返回：

error: bad install directory or PYTHONPATH 

You are attempting to install a package to a directory that is not 
on PYTHONPATH and which Python does not read ".pth" files from. The 
installation directory you specified (via --install-dir, --prefix, or 
the distutils default setting) was: 

    /lib/python2.7/site-packages/ 

and your PYTHONPATH environment variable currently contains: 

    '' 

怎麼回事？

Answer 1

1. 我想重新安裝PIP可以幫助你：

   pip install --upgrade pip 
   

2. 要解決問題的easy_install添加/lib/python2.7/site-packages/到您的PYTHONPATH：

   export PYTHONPATH=$PYTHONPATH:/lib/python2.7/site-packages/ 
   

祝您好運！