PyPlot crashes Atom

I am using Julia 1.1.1 on a MacBook Pro macOS Mojave v 10.14.5
The environment to use Julia is Atom 1.39.1 x64
To plot I use PyPlot and `PyPlot.backend` = Qt5Agg

From the REPL if I do:
`x = randn(100);
plot(x)`
I get a nice window with the plot; I can close the window and everything is OK!

If I use the same 2 lines of code in a file xxxx.jl, I get the same window with the plot as well as a message :
> Julia Client Evaluation finished

but then Atom halts and leaves with a message "Atom left unexpectedly"
Did somebody encounter this behaviour? Is there a solution?
Thanks in advance.

No repository file or test is identified. Start by reproducing the two-line script in Atom and the REPL with Julia 1.1.1, PyPlot using the Qt5Agg backend, and the stated macOS environment; done means determining the crash boundary and documenting a verified fix or limitation.

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