What is the meaning of the warnings when using module after workspace()?

Question

Following situation:

using PyPlot
workspace()
using PyPlot

This prints a gush of warnings. All about overwriting method definitions. Same for (all) other modules.

I thought workspace() would generate a new, clean Main module without any definitions remaining (except for those in LastMain).

Why the warnings?

Answer 1

I am not clear what your warnings are. In my Julia, The warnings are new method definations and deprecated warnings. So workspace() can't take affects on them.