Python installation error no matching distribution found for pyplot

Try reinstalling matplotlib from here. It doesn't matter if you're on a 64 bit computer (I am as well). What matters is which version of Python did you install? If you installed the 32-bit (recommended as it's somewhat easier to deal with), then you still install the 32-bit versions of modules.

The site I linked you shows prerequisite modules for matplotlib, so make sure you also have those installed.

Or what you can do is just try pip install matplotlib. Then import matplotlib.pyplot to make get the pyplot data. matplotlib is a module with pyplot inside it so you can access pyplot easily.

If you try

pip install matplotlib

and it fails, try

pip install --upgrade matplotlib

You might already have the package pre-installed.