--- pty.py.orig	2008-01-30 16:49:04.325764000 -0500
+++ pty.py	2008-02-17 15:08:47.352141000 -0500
@@ -166,3 +182,5 @@
             tty.tcsetattr(STDIN_FILENO, tty.TCSAFLUSH, mode)
 
     os.close(master_fd)
+    (_pid, status) = os.waitpid(pid, 0)
+    return status