run foo: DBG: cd '[TMP]'; PATH=[$PATH] foo.py arg1 arg2  [foo↪foo]
run foo: DBG: [TMP]/stdout  [foo↪foo]
run foo: DBG: [TMP]/stderr  [foo↪foo]
run foo(pid=[PID]): Launched  [foo(pid=[PID])↪foo(pid=[PID])]
stdout:
(launched: [DATETIME])
foo stdout
[[$0], 'arg1', 'arg2']

stderr:
(launched: [DATETIME])
foo stderr

run foo(pid=[PID]): Terminating (SIGINT)
run foo(pid=[PID]): DBG: Cleanup
run foo(pid=[PID]): Terminated {rc=1}
result: 1
stdout:
(launched: [DATETIME])
foo stdout
[[$0], 'arg1', 'arg2']
Exiting (stdout)

stderr:
(launched: [DATETIME])
foo stderr
Traceback (most recent call last):
  File [$0], line [LINE], in <module>
    time.sleep(1)
KeyboardInterrupt
Exiting (stderr)

done.