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Figures not showing in interactive mode with macosx backend #6838

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bartvstratum opened this issue Jul 26, 2016 · 5 comments
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Figures not showing in interactive mode with macosx backend #6838

bartvstratum opened this issue Jul 26, 2016 · 5 comments

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@bartvstratum
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bartvstratum commented Jul 26, 2016 •
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Matplotlib 1.5.1, Python 3.5.2, ipython 5.0.0, OS X El Capitan; Python3 installed with Homebrew, matplotlib through Pip. Empty matplotlibrc file, except for backend : macosx

When creating a figure in non-interactive mode in ipython, matplotlib behaves as expected:

import matplotlib.pylab as pl
pl.ioff()
pl.figure()
pl.show()

Gives me a nice on-screen figure. When I do the same in interactive mode (change ioff() to ion()) I get no on-screen figure, nothing. Exact the same happens when I use pl.ioff() combined with pl.show(block=False), i.e. I again get no on-screen figure.

Could this be a bug in matplotlib?
@bartvstratum
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Seems to be related to ipython 5.0.0; I downgraded it to 4.2 and now everything works again as expected

@afvincent
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Do you use the magic %matplotlib in IPython (or launch it with ipython --matplotlib or similar)?

@bartvstratum
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No, I simply launch ipython and run the exact code shown above

@bartvstratum
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bartvstratum commented Jul 26, 2016 •
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Ah, with %matplotlib it also works with ipython 5.0.0. I was pointed to this: ipython/ipython#9811 and #6734 from StackOverflow, so it seems to be a known problem.

@tacaswell
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Closing as not a bug.

@afvincent afvincent mentioned this issue Aug 6, 2016
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@tacaswell @bartvstratum @afvincent