[Answered ]-How to stop the Django server from keep loading?

You cannot use the interactive version of matplotlib – this will screw up – for sure on a production environment. Just do the following:

from matplotlib.backends.backend_agg import FigureCanvasAgg as FigureCanvas
from matplotlib.figure import Figure

def graphic(request):
        #other stuff goes here
        fig=Figure()
        fig1=fig.add_subplot(1,1,1)
        fig1.plot(x,y)
        canvas=FigureCanvas(fig)
        response=HttpResponse(content_type='image/png')
        canvas.print_png(response)
        return response

This is just the chart part. To implement this chart in a template just put a line like the following into your tempolate.

<img src='{% url "graphic" %}'>

And make sure that it can be found in the urls.