tty-exec.py

tty-exec.py

#!/usr/bin/env python
import subprocess, pty, os, sys

def _safe_read(m):
    try:
        return os.fdopen(m,"r").read()
    except IOError:
        return ''

sout_m, sout_s = pty.openpty()
serr_m, serr_s = pty.openpty()
p = subprocess.Popen(sys.argv[1:], stdin=sys.stdin, stdout=sout_s, stderr=serr_s)
p.communicate()
os.close(sout_s)
os.close(serr_s)

sys.stdout.write(_safe_read(sout_m))
sys.stderr.write(_safe_read(serr_m))

$ ls
foo bar baz

$ ls | cat
foo
bar
baz

$ tty-exec.py ls | cat
foo bar baz

(thanks to http://stackoverflow.com/a/34335713)