acme playground enables 'playground' style programming in the Acme Editor. It works by passing the contents of an Acme window into a program via stdin and passing the output of that program into a different Acme window every time a keyboard event is processed.
go get github.com/sewh/acme_playground/cmd/playground
go install github.com/sewh/acme_playground/cmd/playground
# Ensure $(go env GOPATH) is in your path
From an Acme window:
playground [program]
For example, in a Python file:
playground python3