* fix python2 bug

* fix requirements

* fix mkdir bug

* fix setup issue

* Update README.md

Polish README
Co-authored-by: NZeyu Chen <chenzeyu01@baidu.com>
Co-authored-by: NSteffy-zxf <48793257+Steffy-zxf@users.noreply.github.com>

* optimize demo and cv reader

* remove needless import
Co-authored-by: Nwuzewu <wuzewu@baidu.com>

* finish coding predict

* optimize predict pr

* optimize _postprocessing

* optim namedtuple

* reconsitution reader and dataset

* Add module v2

* fix path bug

* fix environment variable autodl setting

* add task hook

* colorlog

* optimize __repr__