"flush_output" option added to config

controls whether output will be flushed to stdout or not.

CHANGELOG

@@ -6,6 +6,9 @@ Menno sent me some patches to fix some stuff:
 
 'self' in arg list is now highlighted a different colour.
 
+flush_output option added to config to control whether output is flushed to
+stdout or not on exit.
+
 v0.7.1
 ======
 Added support for a history file, defaults to ~/.pythonhist and 100 lines but

bpython/cli.py

@@ -110,6 +110,7 @@ OPTS.syntax = True
 OPTS.arg_spec = True
 OPTS.hist_file = '~/.pythonhist'
 OPTS.hist_length = 100
+OPTS.flush_output = True
 
 # TODO:
 #
@@ -1733,7 +1734,8 @@ def main():
         sys.exit(1)
 
 # Fake stdout data so everything's still visible after exiting
-    sys.stdout.write(o)
+    if OPTS.flush_output:
+        sys.stdout.write(o)
     sys.stdout.flush()
 
 if __name__ == '__main__':