$ cd server/
$ python server.py
new open a terminition
$ cd example
$ corebuild mutualEx.byte -pkg str,re2 -I src
$ ./mutualEx.byte
$ cd server/
$ python server.py
new open a terminition
$ cd example
$ corebuild mutualEx.byte -pkg str,re2 -I src
$ ./mutualEx.byte
MIT License