How do I get interactive plots again in Spyder IPython matplotlib

Question

I upgraded from Python x y  2 7 2 3 to 2 7 6 0 in Windows 7  and was happy to see that I can finally type function name  and see the docstring in the Object Inspector again  but now the plotting doesn t work as it used to   Previously  Spyder 2 1 9  IPython 0 10 2  matplotlib 1 2 1   when I plotted this script  for instance  it would plot the subplots side-by-side in an interactive window     Now  Spyder 2 2 5  IPython 1 2 0  Matplotlib 1 3 1  when I try to plot things  it does the subplots as tiny inline PNGs  which is a change in IPython     So I went into options and found this     which seems to say that I can get the old interactive plots back  with the 4 subplots displayed side-by-side  but when I switch to  Automatic   and try to plot something  it does nothing   No plots at all   If I switch this drop-down to Qt  or uncheck  Activate support   it only plots the first subplot  or part of it  and then stops     How do I get the old behavior of 4 side-by-side subplots in a single figure that I can interact with

User · Answer

After applying   Tools   preferences   Graphics   Backend   Automatic   Just restart the kernel   And you will surely get Interactive Plot  Happy Coding

User · Answer

You can quickly control this by typing built-in magic commands in Spyder s IPython console  which I find faster than picking these from the preferences menu  Changes take immediate effect  without needing to restart Spyder or the kernel   To switch to  automatic   i e  interactive  plots  type    matplotlib auto   then if you want to switch back to  inline   type this    matplotlib inline    Note  these commands don t work in non-IPython consoles   See more background on this topic  Purpose of  quot  matplotlib inline quot

User · Answer

As said in the comments  the problem lies in your script  Actually  there are 2 problems    There is a matplotlib error  I guess that you re passing an argument as None somewhere  Maybe due to the defaultdict   You call show   after each subplot  show   should be called once at the end of your script  The alternative is to use interactive mode  look for ion in matplotlib s documentation

User · Answer

Change the backend to automatic   Tools   preferences   IPython console   Graphics   Graphics backend   Backend  Automatic  Then close and open Spyder

User · Answer

This is actually pretty easy to fix and doesn t take any coding   1 Click on the Plots tab above the console  2 Then at the top right corner of the plots screen click on the options button  3 Lastly uncheck the  Mute inline plotting  button  Now re-run your script and your graphs should show up in the console   Cheers

[python] How do I get interactive plots again in Spyder/IPython/matplotlib?

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