trouble with matplotlib pubsub python - 


traceback (most recent call last):   file "pspsolver1.py", line 520, in getchain     publisher().sendmessage(("show.mainframe"), msg)   file "/usr/lib/python2.7/dist-packages/wx-2.8-gtk2-unicode/wx/lib/pubsub/pubsub1    /pub.py", line 750, in sendmessage     self.__topictree.sendmessage(atopic, message, ontopicnevercreated)   file "/usr/lib/python2.7/dist-packages/wx-2.8-gtk2-unicode/wx/lib/pubsub/pubsub1/pub.py", line 423, in sendmessage deliverycount += node.sendmessage(message)   file "/usr/lib/python2.7/dist-packages/wx-2.8-gtk2-unicode/wx/lib/pubsub/pubsub1/pub.py", line 261, in sendmessage listener(message)   file "pspsolver1.py", line 1112, in showframe createfigure()   file "pspsolver1.py", line 927, in createfigure x_ax.imshow(xcolors, cmap=cmap, interpolation='none')   file "/usr/lib/pymodules/python2.7/matplotlib/axes.py", line 6749, in imshow filterrad=filterrad, resample=resample, **kwargs)   file "/usr/lib/pymodules/python2.7/matplotlib/image.py", line 547, in __init__ **kwargs   file "/usr/lib/pymodules/python2.7/matplotlib/image.py", line 94, in __init__     self.set_interpolation(interpolation)   file "/usr/lib/pymodules/python2.7/matplotlib/image.py", line 458, in set_interpolation raise valueerror('illegal interpolation string')  valueerror: illegal interpolation string

i having trouble matplotlib have piece of code working on 1 computer, when try run on computer doesn't seem work , error suggestions on do?

your code uses

x_ax.imshow(xcolors, cmap=cmap, interpolation='none')

on line 927 of pspsolver1.py. parameter interpolation='none' introduced sometime between matplotlib version 1.0.1 , 1.2.0.

so guess 2 machines running different versions of matplotlib, , 1 version not recent enough.

one way fix problem (of course) update older version of matplotlib. if not option or you'd rather not that, note the docs say:

if interpolation 'none', no interpolation performed on agg, ps , pdf backends. other backends fall ‘nearest’.

so, if not using agg, ps or pdf backend, change line to

x_ax.imshow(xcolors, cmap=cmap, interpolation='nearest')

of course, if go route, there might other pieces of code use newer matplotlib features. might not easy fix.


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