Plot matplotlib on the Web

Question

The following code will of course create a PNG named test and save it on the server:

from matplotlib.figure import Figure                         
from matpl         


        

Answer 1

Just to update for python3

The StringIO and cStringIO modules are gone. Instead, import the io module and use io.StringIO https://docs.python.org/3.5/whatsnew/3.0.html?highlight=cstringio

So now would be something like:

import io
from matplotlib.figure import Figure     
from matplotlib import pyplot as plt                 

fig = Figure(figsize=[4,4])                               
ax = fig.add_axes([.1,.1,.8,.8])                          
ax.scatter([1,2], [3,4])                                  

buf = io.BytesIO()
fig.savefig(buf, format='png')
plt.close(fig)
data=buf.getvalue()

# In my case I would have used Django for the webpage
response = HttpResponse(data, content_type='image/png')
return response