try:

# XXX aargh, we have to leave sys.stdin alone for now:

# urwid.display_common.RealTerminal.tty_signal_keys calls

# sys.stdin.fileno() instead of getting stdin passed in as

# raw_display.Screen._term_input_file :(

# XXX no stdin for you! What to do here?

#sys.stdin = None #FakeStdin(myrepl)

sys.stdout = myrepl

sys.stderr = myrepl

# This needs more thought. What needs to happen inside the mainloop?

# Note that we need the mainloop started before our stdio

# redirection is hit.

def start(main_loop, user_data):

if exec_args:

bpargs.exec_code(interpreter, exec_args)

if not options.interactive:

raise urwid.ExitMainLoop()

if not exec_args:

sys.path.insert(0, '')

# this is CLIRepl.startup inlined.

filename = os.environ.get('PYTHONSTARTUP')

if filename and os.path.isfile(filename):

with open(filename, 'r') as f:

if py3:

interpreter.runsource(f.read(), filename, 'exec')

else:

interpreter.runsource(f.read(), filename, 'exec',

encode=False)

if banner is not None:

repl.write(banner)

repl.write('\n')

myrepl.start()

# This bypasses main_loop.set_alarm_in because we must *not*

# hit the draw_screen call (it's unnecessary and slow).

def run_find_coroutine():

if find_coroutine():

main_loop.event_loop.alarm(0, run_find_coroutine)

run_find_coroutine()

loop.set_alarm_in(0, start)

while True:

try:

loop.run()

except KeyboardInterrupt:

# HACK: if we run under a twisted mainloop this should

# never happen: we have a SIGINT handler set.

# If we use the urwid select-based loop we just restart

# that loop if interrupted, instead of trying to cook

# up an equivalent to reactor.callFromThread (which

# is what our Twisted sigint handler does)

loop.set_alarm_in(0,

lambda *args: myrepl.keyboard_interrupt())

continue

break

if config.hist_length:

histfilename = os.path.expanduser(config.hist_file)

myrepl.rl_history.save(histfilename,

locale.getpreferredencoding())

finally:

sys.stdin = orig_stdin

sys.stderr = orig_stderr

sys.stdout = orig_stdout