Thank you for the response, kcrisman (sorry I don’t know your first name).
Configuration: Apple MacBook pro running OSX 10.9.3 Downloaded and installed vanilla sage-6.2-x86_64-Darwin-OSX_10.9_x86_64.dmg I have set export SAGE_MATPLOTLIB_GUI=no in my .bash_profile (due to a similar situation in the past. I only want to use matplotlib to save to .png files, not to view interactively.) I am happy with Sage being built without tkagg support. (I also have python, scipy, matplotlib, etc. installed via macports, but Sage has always worked as a stand-alone environment, which pleases me. I work in the two environments independently. macports stuff is up-to-date.) Has anyone else experienced this problem? The test is exceedingly simple: sage: import matplotlib.pyplot as plt I actually found the same reports you suggest via Google before submitting this question to sage-support. What I have attempted: 1. Acting on http://ask.sagemath.org/question/626/sage-python-import-matplotlib-no-module-named, I edited /Applications/sage/local/lib/python2.7/site-packages/matplotlib-1.3.1-py2.7-macosx-10.9-x86_64.egg/matplotlib/backends/tkagg.py changed import _tkagg to import backend_tkagg as _tkagg which then caused the error ImportError: cannot import name backend_tkagg 2. Acting on http://ask.sagemath.org/question/3962/gui-backend-matplotlib-in-sage, I rebuilt matplotlib via sage -f matplotlib That failed, probably for the reason explained in that report, so I reinstalled vanilla Sage 6.2 If I am the only person experiencing this problem, then it must be something in my configuration, but I’d really like to know if this is a problem in the Sage 6.2 distribution, so it can get fixed. Thanks to all, Jim On May 27, 2014, at 9:33 AM, kcrisman <kcris...@gmail.com> wrote: > Hi! Is it possible that some locations changed in your installation? Here > is an old post that has a very similar error: > https://groups.google.com/forum/#!topic/sage-support/fV2VNL-5UuY > > Otherwise, perhaps the problem may be the one described here: > http://ask.sagemath.org/question/626/sage-python-import-matplotlib-no-module-named > in which case the binary was probably compiled without tkagg support, which > is normal. You could Compile Sage from scratch, perhaps could redo > matplotlib. See also > http://ask.sagemath.org/question/3962/gui-backend-matplotlib-in-sage > > Now, we did upgrade matplotlib in http://trac.sagemath.org/ticket/14993 so I > wouldn't be surprised if that did cause some problems (there were several > tickets fixed) but it is a little surprising that this is the one, since we > have this same line in the documentation at > http://www.sagemath.org/doc/reference/plotting/sage/plot/plot.html#sage.plot.plot.SelectiveFormatter > > I hope that ONE of these things helps, but I'm sorry if not - in that event, > any other platform details would be very helpful for us. > > On Tuesday, May 27, 2014 7:04:08 AM UTC-4, Jim wrote: > Hello, > > A script that I wrote in April under Sage 6.1.1 stopped working; attempting > to import matplotlib.pyplot produces an error: > > Jims-computer:HW2 jim$ sage > ┌────────────────────────────────────────────────────────────────────┐ > │ Sage Version 6.2, Release Date: 2014-05-06 │ > │ Type "notebook()" for the browser-based notebook interface. │ > │ Type "help()" for help. │ > └────────────────────────────────────────────────────────────────────┘ > sage: import matplotlib.pyplot as mpl > --------------------------------------------------------------------------- > ImportError Traceback (most recent call last) > -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
