If you're a (neo)vim user, I highly recommend using something like https://github.com/hkupty/iron.nvim https://github.com/hkupty/iron.nvim . Using this, I neve

If you're a (neo)vim user, I highly recommend using something like https://github.com/hkupty/iron.nvim https://github.com/hkupty/iron.nvim . Using this, I never have to copy and paste "production code" into "exploration code/notebook", because I simply select the part that I want to test in the production code, and then type in some key mapping to run it.