Now that we are able to sample and collect a lot of data, it is important that we can capture and analyze it. For this, we will make use of a Python library called matplotlib, which includes lots of useful tools for manipulating, graphing, and analyzing data. We will use pyplot (which is a part of matplotlib) to produce graphs of our captured data. For more information on pyplot, go to http://matplotlib.org/users/pyplot_tutorial.html.

It is a MATLAB-style data visualization framework for Python.