Method __getitem__

source/python.js:38–43

(key)

                this.set(key, value);
            }
            __getitem__(key) {
                if (!super.has(key)) {
                    throw new python.Error(`KeyError: ${key}`);
                }
                return super.get(key);
            }
            __delitem__(key) {
                this.delete(key);
            }