Message9836

The attached patch seems to do it for me. There were two issues; the first is that InteractiveConsole.interact() always resets the prompts, even if it they had previously been set to empty, so we need to call `_interact` if we're not interactive instead. Second, like you said 'python.launcher.tty' wasn't always being respected as authoritative. 

  $ dist/bin/jython
  Jython 2.7rc2+ (default:5064a5c5b1a3+, Apr 14 2015, 09:32:56)
  [Java HotSpot(TM) 64-Bit Server VM (Oracle Corporation)] on java1.8.0_40
  Type "help", "copyright", "credits" or "license" for more information.
  >>> ^D
  $ dist/bin/jython.py
  Jython 2.7rc2+ (default:5064a5c5b1a3+, Apr 14 2015, 09:32:56)
  [Java HotSpot(TM) 64-Bit Server VM (Oracle Corporation)] on java1.8.0_40
  Type "help", "copyright", "credits" or "license" for more information.
  >>> ^D
  $ echo 'print 1' | dist/bin/jython.py
  1

  $ echo 'print 1' | dist/bin/jython
  1
 
  $

(This is my first time trying to suggest a patch here, and I haven't spent any time trying to look back at previous bug reports to see how patches are usually attached so I probably did it wrong. I just wanted to get this up there quickly. I'll take a look to see if I can find better conventions.)