def _mxwarn(msg):
 warn(('Possible MaxFilter bug: %s, more info: http://imaging.mrc-cbu.cam.ac.uk/meg/maxbugs' % msg))

def _mxwarn ( msg ) : warn ( ( 'Possible MaxFilter bug: %s, more info: http://imaging.mrc-cbu.cam.ac.uk/meg/maxbugs' % msg ) )
warn about a bug .