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Don't try to re-setup any GUI event loop (for PyJulia) #383

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8 changes: 8 additions & 0 deletions src/init.jl
Original file line number Diff line number Diff line change
Expand Up @@ -70,6 +70,14 @@ function find_backend(matplotlib::PyObject)

qt2gui = Dict("pyqt5"=>:qt_pyqt5, "pyqt4"=>:qt_pyqt4, "pyside"=>:qt_pyside)

if haskey(matplotlib, :pyplot)
# If matplotlib.pyplot exists, it means that matplotlib
# backend is already configured. It may mean that PyPlot.jl
# is called via PyJulia.
backend = lowercase(matplotlib[:get_backend]())
return (backend, get(matplotlib2gui, backend, :none))
end

rcParams = PyDict(matplotlib["rcParams"])
default = lowercase(get(ENV, "MPLBACKEND",
getnone(rcParams, "backend", "none")))
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