Basic IPC with named pipes

Basic IPC with named pipes: REPL

julia> include("consumer.jl");
Python started
Python done
Julia done: got hello world

consumer.jl

pipe = "py_to_julia"
ispath(pipe) && rm(pipe)
run(`mkfifo $pipe`)

@sync begin
    @async run(`python producer.py`)

    @async begin
        x = read(pipe, String)
        print("Julia done: got $x")
    end
end

producer.py

print("Python started")

with open('py_to_julia', 'w') as f:
    f.write('hello world')

print("Python done")