From 43cf653d21d931b792b36c7e6e4cfab3a6236bef Mon Sep 17 00:00:00 2001
From: Greg Hudson <ghudson@mit.edu>
Date: Wed, 25 Jul 2018 11:50:02 -0400
Subject: [PATCH] Fix k5test prompts for Python 3

With Python 3, sys.stdout.write() of a partial line followed by
sys.stdin.readline() does not display the partial line.  Add explicit
flushes to make prompts visible in k5test.py.

ticket: 8710
(cherry picked from commit 297535b72177dcced036b78107e9d0e37781c7a3)
Signed-off-by: Robbie Harwood <rharwood@redhat.com>
---
 src/util/k5test.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/util/k5test.py b/src/util/k5test.py
index 81fac3063..e4f99b211 100644
--- a/src/util/k5test.py
+++ b/src/util/k5test.py
@@ -457,6 +457,7 @@ def _onexit():
     if _debug or _stop_before or _stop_after or _shell_before or _shell_after:
         # Wait before killing daemons in case one is being debugged.
         sys.stdout.write('*** Press return to kill daemons and exit script: ')
+        sys.stdout.flush()
         sys.stdin.readline()
     for proc in _daemons:
         os.kill(proc.pid, signal.SIGTERM)
@@ -658,6 +659,7 @@ def _valgrind(args):
 def _stop_or_shell(stop, shell, env, ind):
     if (_match_cmdnum(stop, ind)):
         sys.stdout.write('*** [%d] Waiting for return: ' % ind)
+        sys.stdout.flush()
         sys.stdin.readline()
     if (_match_cmdnum(shell, ind)):
         output('*** [%d] Spawning shell\n' % ind, True)