I have written a simple Python 3 script:
#!/usr/bin/env python3 print('Hello world!')
The script works from the shell:
$ ./hello-world Hello world!
Then, I have written some Lisp to run the script:
(defun hello-world-process-sentinel (process event) (message "Process: %s; Event: %s" process event)) (defvar hello-world-process (make-process :name "hello world" :buffer (get-buffer-create "*hello world*") :command "hello-world" :sentinel #'hello-world-process-sentinel))
(process-status hello-world-process) returns
run, but the
*hello world* buffer stays empty, and the sentinel doesn't get called.