How to use Matplotlib in Django?

Question

From some examples from the Internet I made the test code below. It works!

... BUT if I reload the page, the pie will draw itself with the same image. Some parts ge

Answer 1

1.save picture which created by matplotlib
for example:plt.savefig('./app1/static/visualize.png') 2.use the picture in your html code for example:

about django how to use static variable(like picture and js file) you can refer to django document

Answer 2

You need to remove the num parameter from the figure constructor and close the figure when you're done with it.

import matplotlib.pyplot

def test_matplotlib(request):
    f = figure(figsize=(6,6))
    ....
    matplotlib.pyplot.close(f)

By removing the num parameter, you'll avoid using the same figure at the same time. This could happen if 2 browsers request the image at the same time. If this is not an issue, another possible solution is to use the clear method, i.e. f.clear().