update version to 1.5.9 and close knownsec#95

update version to 1.5.8

取消pyreadline的报错提示

update version to 1.5.6

update version to 1.5.5

update version to 1.5.4

update contributors.md

update version to 1.5.1

update version to 1.5.0

update version to 1.4.6