Question

我通常使用IPython，并且最近才注意到常规python shell中导入的搜索路径是错误的。根据我的理解，sys.path继承自PYTHONPATH（尽管我不知道PYTHONPATH在哪里生活），这在IPython中是不同的？我担心这个有影响的装置。比如我刚试过

pip install --upgrade gensim

失败了，因为它无法解决我已安装的scipy依赖项。所以我在Ipython中找到了更深入的鸽子

import gensim
gensim.__version__

返回.9.1 而在python中

import gensim
gensim.__version__

返回.8.9

以下是Ipython版本的sys.path的样子：

['',
    '/Users/change/anaconda/bin',
    '/Users/change/anaconda/lib/python2.7/site-packages/pybing-0.12-py2.7.egg',
    '/Users/change/anaconda/lib/python2.7/site-packages/httplib2-0.8-py2.7.egg',
    '/Users/change/anaconda/python.app/Contents/lib/python27.zip',
    '/Users/change/anaconda/python.app/Contents/lib/python2.7',
    '/Users/change/anaconda/python.app/Contents/lib/python2.7/plat-darwin',
    '/Users/change/anaconda/python.app/Contents/lib/python2.7/plat-mac',
    '/Users/change/anaconda/python.app/Contents/lib/python2.7/plat-mac/lib-scriptpackages',
    '/Users/change/anaconda/python.app/Contents/lib/python2.7/lib-tk',
    '/Users/change/anaconda/python.app/Contents/lib/python2.7/lib-old',
    '/Users/change/anaconda/python.app/Contents/lib/python2.7/lib-dynload',
    '/Users/change/anaconda/lib/python2.7/site-packages',
    '/Users/change/anaconda/lib/python2.7/site-packages/PIL',
    '/Users/change/anaconda/lib/python2.7/site-packages/pygoogle',
    '/Users/change/anaconda/lib/python2.7/site-packages/setuptools-0.6c11-py2.7.egg-info',
    '/Users/change/anaconda/lib/python2.7/site-packages/IPython/extensions']

和常规python脚本sys.path：

['',
'/Users/change/anaconda/lib/python2.7/site-packages/pybing-0.12-py2.7.egg',
'/Users/change/anaconda/lib/python2.7/site-packages/httplib2-0.8-py2.7.egg',
'/Users/change/anaconda/lib/python27.zip',
'/Users/change/anaconda/lib/python2.7',
'/Users/change/anaconda/lib/python2.7/plat-darwin',
'/Users/change/anaconda/lib/python2.7/plat-mac',
'/Users/change/anaconda/lib/python2.7/plat-mac/lib-scriptpackages',
'/Users/change/anaconda/lib/python2.7/lib-tk',
'/Users/change/anaconda/lib/python2.7/lib-old',
'/Users/change/anaconda/lib/python2.7/lib-dynload',
'/Users/change/anaconda/lib/python2.7/site-packages',
'/Users/change/anaconda/lib/python2.7/site-packages/PIL',
'/Users/change/anaconda/lib/python2.7/site-packages/pygoogle',
'/Users/change/anaconda/lib/python2.7/site-packages/setuptools-0.6c11-py2.7.egg-info']

Answer 1

现在可能为时已晚，但这里的答案也可能对您有所帮助：ipython reads wrong python version。基本上，ipython脚本可以直接引用特定的python二进制文件，而不是你直接运行python时获得的那个。

Answer 2

我的mac上安装了一个brew版本的Python。由于某些原因，无法使用系统库。在brew uninstall python之后它再次起作用，因为默认的python被切换回/ usr / bin / python。

还可以使用which python，which ipython并打开/ usr / bin / python，/ usr / local / bin / python，/ usr / bin / ipython和/ usr / local / bin / ipython并在那里进行导入可能会帮助您找出它确实出错的地方。

Answer 3

您可能已激活虚拟环境，忽略系统路径。

可以通过在终端中运行它来修复它（关闭笔记本等之后）：

virtualenv --system-site-packages ~

IPython sys.path与python sys.path不同

3 个答案: