writes "The creator of Matplotlib (a free 2-D plotting library for python) and main contributor, John Hunter, has sadly passed away. Anyone who has used the library are familiar with the excellent quality of the library and the plots produced. The NumFOCUS foundation has set-up a memorial fund for providing education and support for his children. If you have benefitted from the usage of matplotlib in your work (publications, web content etc.) I sincerely wish that you would consider making a donation (even a small one).
Btw I have used matplotlib for seven years in industrial research for data visualization, publication ready plots etc. In my opinion Matplotlib is by far the best free/open source 2-D plotting library available."Link to Original Source