[Matplotlib-users] Saving a figure to StringIO or similar

[Sascha <sas...@gm...>]

I am writing a web server app that creates charts among other things. I am 
trying to get rid of the temporary file that I use to transmit the figures 
created with matplotlib to the actual web server. Although print_figure says 
"If filename is a fileobject, write png to file object (thus you can, for 
example, write the png to stdout)" I can't successfully write anything to 
stdout. Anyone knows an example or can give me some hint what I can do to 
get rid of the tempfile?

Thanks,
Sascha