c++ level assertion error in pyplot

[email protected] Mon, 28 Jan 2019 04:06:58 -0800 (PST)
Newsgroups gmane.comp.python.wxpython.devel
Message-ID <[email protected]>
When I run the PyPlot demo I get an C++ level assertion error:

/tmp/build/80754af9/wxpython_1533092551369/work/ext/wxWidgets/src/gtk/dcclient.cpp(2038): 
assert "m_window" failed in DoGetSize(): GetSize() doesn't work without 
window

This happens only on GTK (wxpython-4.0.3). The script continues but I am 
wondering what should be done to solve this issue.

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