pycharm - Spectral Python Display not staying up -

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i'm experimenting spectral python library, , whenever try re-create first example here: http://www.spectralpython.net/graphics.html image window appears , disappears. i'm scripting in pycharm, doing wrong?

my code identical code in example, without line numbers of course

turns out had bigger problems, wasn't using wx backend matplotlib, meaning attempt display window naught. i've since moved anaconda, , have run new errors! @ least not 1 :d


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