PyQt and matplotlib

Question

I call a matplotlib function plt.show() from an PyQt application. I always have the warning:

QCoreApplication::exec: The event loop is already running

It seems that matplotlib called a new QCoreApplication which is already started How can I do to remove this warning? Thanks

Answer 1

If you are not generating multiple plots, the easiest way around is to use plt.ion() before you initialise the figure. Remove plt.show()