Matplotlib

Matplotlib is versatile and powerful Python data visualization library. It has been recently used for rendering the first picture of a black hole and to illustrate the existence of gravitational waves.

Matplotlib is a Python 2D plotting library which produces publication quality figures in a variety of hardcopy formats and interactive environments across platforms. Matplotlib can been be used in Python scripts, the Python and IPython shells and has been implemented in Jupyter notebooks, web application servers, and four graphical user interface toolkits.

https://matplotlib.org/

JupyterHub

JupyterHub, a multi-user Hub, spawns, manages, and proxies multiple instances of the single-user Jupyter notebook server. JupyterHub can be used to serve notebooks to a class of students, a corporate data science group, or a scientific research group.

JupyterHub brings the power of notebooks to groups of users. It gives users access to computational environments and resources without burdening the users with installation and maintenance tasks. Users – including students, researchers, and data scientists – can get their work done in their own workspaces on shared resources which can be managed efficiently by system administrators.
JupyterHub runs in the cloud or on your own hardware, and makes it possible to serve a pre-configured data science environment to any user in the world. It is customizable and scalable, and is suitable for small and large teams, academic courses, and large-scale infrastructure.

https://jupyter.org/hub