Matplotlib is a Python 2D plotting library that produces publication-quality figures in a variety of hardcopy formats and interactive environments across platforms. Matplotlib can be used in Python scripts, the Python and IPython shell, the Jupyter Notebook, web application servers, and four graphical user interface toolkits.
pandas contains very tight integration with matplotlib, including functions as part of Series and DataFrame objects that automatically call matplotlib. This does not mean that pandas is limited to just matplotlib. As we will see, this can be easily changed to others such as ggplot2 and seaborn.