Mess With Multiple Versions Of Pip To Install Numpy

I have somehow a mess with my python versions and or pip version. As a consequence I have trouble to install numpy. I use the following default python version >>> print(sy

Solution 1:

If you are not sure which pip program is associated with your multiple python version, I would recommend you to call pip from your desired python version. The following command calls pip module from your targeted python program.

python -m pip install numpy

With absolute paths, it gives

/usr/bin/python2.7 -m pip install numpy
/usr/bin/python3 -m pip install numpy

Solution 2:

You don't just have multiple versions of pip installed, you have multiple versions of Python itself.

It looks like numpy is installed in your python 2.7 packages but not in your python 3.5 packages.

If you want to use numpy with python 2.7 then when you run the script you need to tell it to use python 2.7. See this answer.

Alternatively if you want to use numpy with python 3.5 then you need to install it in the correct location.

As a suggestion: Unless you need different versions of python installed for some reason I would recomend starting afresh with anaconda which comes with many scientific packages baked in (including numpy).