Python print to stderr in generator
def readdir(self, path, offset):
    print >> sys.stderr, 'Text'
    sys.stderr.flush()
    time.sleep(3)

def readdir(self, path, offset):
    print >> sys.stderr, 'Text'
    sys.stderr.flush()
    for o in os.listdir( "." + path ):
        yield fuse.Direntry(o)