Question

I wanted to ask if you could call in a program written in Ocaml a program written in python , and if the answer is yes how do I do?

Answer 1

What exactly are you intending to do? Do you want to run it and forget about it? Then do a fork/exec. Do you want run it and wait until it’s finished but otherwise do nothing? Then use Sys.command. Do you want to read/write to it? Then uses Unix.open_process* (or Unix.create_process*).

For example, if I want to run ls and print out the results, I can do this:

let ls = Unix.open_process_in "ls"
try
  while true do
    Printf.printf "%s\n" (input_line ls)
  done
with End_of_file -> ()
Unix.close_process_in ls