[IPython-dev] nbagg problems in ipython 3.0.1 and 2.4

[Eric Firing]

George,

The problem is that clicking the red X is closing the figure, and the 
call in the next cell is trying to plot to that closed figure.  The 
solution is to open a new figure in each cell where you want to plot to 
a new figure. You can use plt.figure(), or use "fig, ax = 
plt.subplots()" and then "ax.plot(...)" etc.

Eric

On 2015/03/04 12:29 AM, George Nurser wrote:
> Hi,
>
> Not sure whether this is an python or matplotlib query.
>
> Using the latest python v3.0.1 and matplotlib 1.4.3 from macports on OS
> X 10.9.5, python 2.7.9,
> I invoke ipython with
>
> ipython notebook
>
> Then in a new 'Jupyter' notebook I create on  Safari 7.1.3 I do
>
> %matplotlib nbagg
>
> import matplotlib.pyplot as plt
>
> plt.plot([1,2])
>
> -- this works great, but if I click on the red x to the top right then
>
> (i) I get the warning message on the console of
> [IPKernelApp] ERROR | No such comm: 42451f0dd4314048908b43c2e4c414bf
>
> (ii) all future calls to matplotlib don't actually plot anything. e.g.
> (both in the original cell and in new cells below in the notebook) doing
> plt.plot([1,2]) just gives
>
> Out[5]:  [<matplotlib.lines.Line2D at 0x1104fa9d0>]
>
> I can get things to work again with another call of
> %matplotlib nbagg
> but just wondered whether it was supposed to work like this.
>
> I had similar issues with python 2.4 and matplotlib 1.4.2
>
> Regards, George Nurser.
>
>
>
>
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