Can't import fontkit lib

[MikeUdin]

Hello! This code gives me an error.

import js2py

def main():

    context = js2py.EvalJs(enable_require=True)
    context.execute("var fontkit = require('fontkit');")

if __name__ == '__main__':
    main()

File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/evaljs.py", line 199, in execute
    exec (compiled, self._context)
  File "<EvalJS snippet>", line 2, in <module>
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 949, in __call__
    return self.call(self.GlobalObject, args)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 1464, in call
    return Js(self.code(*args))
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/evaljs.py", line 162, in _js_require_impl
    return require(to_python(npm_module_name), context=self._context)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/node_import.py", line 166, in require
    exec(py_code, context)
  File "<string>", line 32269, in <module>
  File "<string>", line 32268, in PyJs_LONG_2046_
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 949, in __call__
    return self.call(self.GlobalObject, args)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 1464, in call
    return Js(self.code(*args))
  File "<string>", line 32259, in PyJsHoisted_r_
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 949, in __call__
    return self.call(self.GlobalObject, args)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 1464, in call
    return Js(self.code(*args))
  File "<string>", line 32250, in PyJsHoisted_o_
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 996, in callprop
    return cand.call(self, args)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 1464, in call
    return Js(self.code(*args))
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/prototypes/jsfunction.py", line 27, in call
    return this.call(obj, args)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 1464, in call
    return Js(self.code(*args))
  File "<string>", line 232, in PyJs_anonymous_7_
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 949, in __call__
    return self.call(self.GlobalObject, args)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 1464, in call
    return Js(self.code(*args))
  File "<string>", line 32248, in PyJs_anonymous_2045_
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 949, in __call__
    return self.call(self.GlobalObject, args)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 1464, in call
    return Js(self.code(*args))
  File "<string>", line 32250, in PyJsHoisted_o_
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 996, in callprop
    return cand.call(self, args)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 1464, in call
    return Js(self.code(*args))
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/prototypes/jsfunction.py", line 27, in call
    return this.call(obj, args)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 1464, in call
    return Js(self.code(*args))
  File "<string>", line 27692, in PyJs_anonymous_1144_
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 996, in callprop
    return cand.call(self, args)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 1464, in call
    return Js(self.code(*args))
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/prototypes/jsfunction.py", line 27, in call
    return this.call(obj, args)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 1464, in call
    return Js(self.code(*args))
  File "<string>", line 27690, in PyJs_anonymous_1145_
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 996, in callprop
    return cand.call(self, args)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 1464, in call
    return Js(self.code(*args))
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/prototypes/jsfunction.py", line 27, in call
    return this.call(obj, args)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 1464, in call
    return Js(self.code(*args))
  File "<string>", line 16457, in PyJs_anonymous_1146_
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 949, in __call__
    return self.call(self.GlobalObject, args)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 1464, in call
    return Js(self.code(*args))
  File "<string>", line 32248, in PyJs_anonymous_2045_
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 949, in __call__
    return self.call(self.GlobalObject, args)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 1464, in call
    return Js(self.code(*args))
  File "<string>", line 32250, in PyJsHoisted_o_
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 996, in callprop
    return cand.call(self, args)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 1464, in call
    return Js(self.code(*args))
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/prototypes/jsfunction.py", line 27, in call
    return this.call(obj, args)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 1464, in call
    return Js(self.code(*args))
  File "<string>", line 28816, in PyJs_anonymous_1807_
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 1153, in get
    return self.prototype.get(prop, throw)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/js2py/base.py", line 1158, in get
    raise MakeError('ReferenceError', '%s is not defined' % prop)
js2py.internals.simplex.JsException: ReferenceError: TextEncoder is not defined