__init__.py 文件源码

def exec_(self, source):
            source = '''\
            (function() {{
                {0};
                {1};
            }})()'''.format(
                encode_unicode_codepoints(self._source),
                encode_unicode_codepoints(source)
            )
            source = str(source)

            import PyV8
            import contextlib
            #backward compatibility
            with contextlib.nested(PyV8.JSContext(), PyV8.JSEngine()) as (ctxt, engine):
                js_errors = (PyV8.JSError, IndexError, ReferenceError, SyntaxError, TypeError)
                try:
                    script = engine.compile(source)
                except js_errors as e:
                    raise RuntimeError(e)
                try:
                    value = script.run()
                except js_errors as e:
                    raise ProgramError(e)
                return self.convert(value)