A little update. It seems that this seems to be specific to Linux in some
way. I tried the original script from the PR under a couple of conditions:
* on Windows 7 Anaconda Python 2.7 and 3.4 -- everything works both versions
* on Anaconda Python 2.7 and 3.4 Linux version -- only the 2.7 version works
* on Gentoo Linux Python 2.7 and 3.4, MPL 1.4.3 -- only the 2.7 version
works
Hope that helps.
Ryan
On Fri, Mar 20, 2015 at 3:41 PM, Jerzy Karczmarczuk <
jerzy.karczmarc...@unicaen.fr> wrote:
>
> Le 20/03/2015 16:57, Ryan Nelson a écrit :
> > For me, if I change the script from the PR to what is shown below,
> > everything works fine in both Python 2.7 and 3.4 (Anaconda
> > environments, everything updated):
> > ##################
> > url = 'http://www.libpng.org/pub/png/img_png/pngnow.png'
> > try:
> > import urllib2
> > data = urllib2.urlopen(url)
> > except Exception:
> > import urllib.request
> > from io import BytesIO
> > data = BytesIO(urllib.request.urlopen(url).read())
> >
> > from matplotlib import pyplot
> >
> > image = pyplot.imread(data) # crash on py3.x
> > pyplot.imshow(image)
> > pyplot.show()
> > #################
> > But as you can see, the Python 3 version requires the addition of
> > BytesIO and read(). I take it that this is not supposed to be the case.
>
> It works for X.png, not for X.jpg. The call of imread() fails then.
> Tested also under 3.4/Anaconda.
>
> Jerzy Karczmarczuk
>
>
>
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