[eclipse] pip install error

When I want to pip install modules downloaded from website
http://www.lfd.uci.edu/~gohlke/pythonlibs/

Take scipy as an example. Since the file with extension whl, we need to use pip install to install this module. Then I put the downloaded file scipy-0.16.1-cp27-none-win_amd64.whl into a different file especially to put these modules and then I want to pip install from the specialized file, I get an error:

What does this error mean? Then I search for the internet and find many vary complex solutions. But Here I give my easy one: Just put all .whl into the same file as pip.exe, which is …\python 2.7.10\Scripts

The pip install works