More than one graph can be combined in the same graph. In this recipe, we'll see how to present data in the same plot, on two different axes, and how to add more plots to the same graph.
We need to install matplotlib in our virtual environment:
$ echo "matplotlib==2.2.2" >> requirements.txt
$ pip install -r requirements.txt
If you are using macOS, it's possible that you get an error like this—RuntimeError: Python is not installed as a framework. See the matplolib documentation on how to fix it: https://matplotlib.org/faq/osx_framework.html.