Error message

scipy-0.15.1-cp34-none-win_amd64.whl is not a supported wheel on this platform

What happened

Pip incorrectly determined the operating system to be 32-bit rather than 64-bit as specified in the file name.

The solution

Rename the file to:

scipy-0.15.1-cp34-none-win32.whl

and try again.  This will work and install the 64-bit version of scipy.