Workers should inherit environment

[rened]

If I have a project where I installed MyPackage and I can say

julia --project -e "using MyPackage"

the following does only work when I manually activate the environment:

using Distributed
using MyPackage   # works
addprocs(3)
@everywhere
  using Pkg; Pkg.activate(".")  # required
  using MyPackage
  ...
end

I would suggest that workers inherit the environment that is active when they are added with addprocs. Should there be any calls to Pkg.activate after addprocs they have to be manually performed by the user on all workers.

[KristofferC]

Pkg doesn't control how addprocs work so not sure the fix can happen here.

[rened]

Wasn't sure what the right place is - shall I post this as a Julia issue instead?

[KristofferC]

Yes, this seems like a base Julia issue.

I think the long-term plan is to have all code be loaded from the master process so we don't have to send over all this state.