def get_ext_fullname(self, ext_name):
        """Returns the fullname of a given extension name.

        Adds the `package.` prefix"""
        if self.package is None:
            return ext_name
        else:
            return self.package + '.' + ext_name
Returns the fullname of a given extension name.

        Adds the `package.` prefix
product/gradle-plugin/src/main/python/setuptools/_distutils/command/build_ext.py