Answer by juzer tarwala for How can I install NumPy on Windows using 'pip install'?

First go through page Download Python to download Python 3.6.1 or 2.7.13 either of your choice. I preferred to use Python 2.7 or 3.4.4.

Now after installation, go to the folder name python27 or python34, and click on the script. Now here open the command prompt by left clicking and Run as administrator.

After the command prompt appears, write "pip install numpy" there. This will install the latest version of NumPy and installing it will show a success comment. That's all.

Similarly, Matplotlib can be installed by just typing "pip install matplotlip". And now if you want to download SciPy, then just write "pip install scipy" and if it doesn't work then you need to download Python SciPy from SciPy: Scientific Library for Python and install it.