Cannot install NumPy from a wheel format

Short answer: rename the file to numpy-1.9.1%2Bmkl-cp34-none-win32.whl to install it.

You can check what tags your pip tool accepts for installation by running:

import pip; print(pip.pep425tags.get_supported())

In this case pip is incorrectly detecting your operating system to be 32-bits and the file you're trying to install was win_amd64 in its filename.

If you rename the file to numpy-1.9.1%2Bmkl-cp34-none-win32.whl (which now contains the tags that are considered supported) then you can install the package. It's a trick because the file is still built for 64-bits but this allows you to install the package as intended.

After several tests I think the problem is "win32" or "amd64" itself. I tried replacing those two with "any" and it worked.

In my case, the workaround to install gohlke packages on Python (3.4.4 (AMD64)) was to change the "cp34m" part rather than the "win*" parts in previous answers:

python -c "import pip; print(pip.pep425tags.get_supported())":

[('cp34', 'none', 'win_amd64'), ('py3', 'none', 'win_amd64'),
('cp34', 'none', 'any'), ...

ls -ld *:

matplotlib-2.0.0b3-cp34-cp34m-win_amd64.whl
numpy-1.11.1+mkl-cp34-cp34m-win_amd64.whl
pandas-0.18.1-cp34-cp34m-win_amd64.whl

Change the above names to:

matplotlib-2.0.0b3-cp34-none-win_amd64.whl
numpy-1.11.1+mkl-cp34-none-win_amd64.whl
pandas-0.18.1-cp34-none-win_amd64.whl

For example, pip install matplotlib-2.0.0b3-cp34-none-win_amd64.whl

Processing ...
...Successfully installed matplotlib-2.0.0b3