Matplotlib plots not showing up in Mac OSX?

Question

I am running Mac OSX 10.5.8. I installed matplotlib using macports. I get some examples from the matplotlib gallery like this one, without modification:

http://matpl

Answer 1

After the plot simply add -

plt.show()

The reason this works is to do with interactive vs non-interactive mode. If the backend is opened in non-interactive mode, plt.show() is required at the end of the code chunk. You can check the status by calling plt.isinteractive() and toggle the status using plt.ion() and plt.ioff()