mpl_toolkits not installed with pip install -e .

[stefanv]

To reproduce:

pip install -e .
python -c 'from mpl_toolkits.mplot3d import Axes3D'

[WeatherGod]

Most likely, you have an older install of mpl_toolkits (possibly through
Basemap) that is messing things up. Also, I am assuming this is happening
in a virtualenv?

Also, for completeness, the traceback would be useful.
On Aug 11, 2015 4:45 PM, "Stefan van der Walt" notifications@github.com
wrote:

To reproduce:

pip install -e .
python -c 'from mpl_toolkits.mplot3d import Axes3D'

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Reply to this email directly or view it on GitHub
#4907.

[jenshnielsen]

Im guessing this could be the issue pypa/pip#3

[stefanv]

$ ls /home/stefan/envs/py3/lib/python3.4/site-packages/mpl_toolkits
basemap

$ pip install -e .
Obtaining file:///home/stefan/src/matplotlib
Requirement already satisfied (use --upgrade to upgrade): numpy>=1.6 in /home/stefan/src/numpy (from matplotlib==1.5.dev1)
Requirement already satisfied (use --upgrade to upgrade): python-dateutil in /home/stefan/envs/py3/lib/python3.4/site-packages (from matplotlib==1.5.dev1)
Requirement already satisfied (use --upgrade to upgrade): pytz in /home/stefan/envs/py3/lib/python3.4/site-packages (from matplotlib==1.5.dev1)
Requirement already satisfied (use --upgrade to upgrade): pyparsing>=1.5.6 in /home/stefan/envs/py3/lib/python3.4/site-packages (from matplotlib==1.5.dev1)
Requirement already satisfied (use --upgrade to upgrade): six in /home/stefan/envs/py3/lib/python3.4/site-packages (from python-dateutil->matplotlib==1.5.dev1)
Installing collected packages: matplotlib
  Running setup.py develop for matplotlib
Successfully installed matplotlib

Traceback (most recent call last):
  File "<string>", line 1, in <module>
ImportError: No module named 'mpl_toolkits.mplot3d'

$ pip uninstall matplotlib
Uninstalling matplotlib-1.5.dev1:
  /home/stefan/envs/py3/lib/python3.4/site-packages/matplotlib.egg-link
Proceed (y/n)? y
  Successfully uninstalled matplotlib-1.5.dev1

$ pip install .
Processing /home/stefan/src/matplotlib
Requirement already satisfied (use --upgrade to upgrade): numpy>=1.6 in /home/stefan/src/numpy (from matplotlib==1.5.dev1)
Requirement already satisfied (use --upgrade to upgrade): python-dateutil in /home/stefan/envs/py3/lib/python3.4/site-packages (from matplotlib==1.5.dev1)
Requirement already satisfied (use --upgrade to upgrade): pytz in /home/stefan/envs/py3/lib/python3.4/site-packages (from matplotlib==1.5.dev1)
Requirement already satisfied (use --upgrade to upgrade): pyparsing>=1.5.6 in /home/stefan/envs/py3/lib/python3.4/site-packages (from matplotlib==1.5.dev1)
Requirement already satisfied (use --upgrade to upgrade): six in /home/stefan/envs/py3/lib/python3.4/site-packages (from python-dateutil->matplotlib==1.5.dev1)
Installing collected packages: matplotlib
  Running setup.py install for matplotlib
Successfully installed matplotlib-1.5.dev1

$ python -c 'from mpl_toolkits.mplot3d import Axes3D'

[jenshnielsen]

@stefanv

As I read your output you have basemap installed and then do a -e install. I think that is clearly an example of the issue in pypa/pip#3

Im not sure what we can do other than get rid of the namespace package. I.E release basemap as a top level package and make mpl_toolkits a regular non namespace package.

[stefanv]

The last option is the one taken by scikit-image and scikit-learn, as a point of reference.

[QuLogic]

I'm not seeing anything we can actually do here.