How do I reload a module in an active Julia session after an edit?

Question

2018 Update: Be sure to check all the responses, as the answer to this question has changed multiple times over the years. At the time of this update, the <

Answer 1

I wanted to create a new module from scratch, and tried the different answers with 1.0 and didn’t get a satisfactory result, but I found the following worked for me:

From the Julia REPL in the directory I want to use for my project I run

pkg> generate MyModule

This creates a subdirectory like the following structure:

MyModule
├── Project.toml
└── src
    └── MyModule.jl

I put my module code in MyModule.jl. I change to the directory MyModule (or open it in my IDE) and add a file Scratch.jl with the following code:

Pkg.activate(“.”)
using Revise
import MyModule

Then I can add my code to test below and everything updates without reloading the REPL.