Its main purpose is to let you use components (.vue files) in your vuejs app, without a full nodejs stack. Just use python2 or python3. BTW, it provides a method to minimize your js scripts (es2015 compliant).(It provides methods to help you to build your vuejs app without nodejs)
Available on https://github.com/manatlan/vbuild (MIT licence)
Available on pypi : https://pypi.org/project/vbuild/