id	summary	status	owner	type	priority	component
98	(minor) improve code readability	new	xi	enhancement	low	pyyaml
99	remove unused variable	new	xi	defect	low	pyyaml
100	remove unused variable in scaner.scan_plain_spaces()	new	xi	enhancement	low	pyyaml
131	remove unused 'line' variable from emitter	new	xi	enhancement	low	pyyaml