tptimer/env/lib/python2.7/site-packages/execjs/runtime_names.py

PyV8           = "PyV8"
Node           = "Node"
JavaScriptCore = "JavaScriptCore"
SpiderMonkey   = "SpiderMonkey"
JScript        = "JScript"
PhantomJS      = "PhantomJS"
SlimerJS       = "SlimerJS"
Nashorn        = "Nashorn"