Delete full workspace or one variable in julia

Question

I have searched for a while and experimenting with CommonRLInterface https://github.com/JuliaReinforcementLearning/CommonRLInterface.jl. There are some mutable variables. I am not an expert in Julia Programming, but I want to clear the whole workspace or delete a mutable variable (which is not allowed for mutable variables as far as I understand it, but in CommonRLInterface it comes from AbstractEnv superclass so I cannot change it).

struct myEnv <: AbstractEnv 

julia> myGridWorld=Nothing
ERROR: invalid redefinition of constant myGridWorld
Stacktrace:
 [1] top-level scope
   @ none:1

I want to clear the whole workspace. So I have to stop julia and restart it again. In addition I have to activate the environment again.

It would help me if there would exist a button or keyshortcut, which automatically resets the workspace, starting a new julia kernel if necessary and activates the last environment (maybe also restarting the code).

There exists similar posts which were not helpful https://discourse.julialang.org/t/how-to-clear-variables-and-or-whole-work-space/10149

user_1269567 · Answer

This is an open issue in Julia. See https://discourse.julialang.org/t/clear-workspace-a-la-pluto/74484 for a description of the current status of it.

A current partial solution for this is https://docs.julialang.org/en/v1/manual/workflow-tips/#A-basic-editor/REPL-workflow.

Essentially - do not load your code into Main module, but create a custom module where you load your code. Then you will be able to replace this custom module in a single session.

Delete full workspace or one variable in julia

1 Answers