We've had some requests from internal users here at STScI to make it 
easier to save JPEG files directly from matplotlib.  We currently 
support JPEG saving from the Gtk* and Wx* backends (because those 
libraries come with JPEG saving support), but not in the Tk backend that 
most of our users use.

One solution to this may be to add an optional dependency on PIL, and if 
found save JPEG files (and maybe some of the other esoteric formats PIL 
supports).  The work done a couple of years back to manage the supported 
file types should make this pretty easy.

While adding a hard dependency on PIL is probably not a good idea, are 
there any objections to making it a soft dependency?

Mike

-- 
Michael Droettboom
Science Software Branch
Space Telescope Science Institute
Baltimore, Maryland, USA


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