pymysql报错：RuntimeError: ‘cryptography‘ package is ?

pymysql报错 RuntimeError: 'cryptography' package is required for sha256_password or caching_sha2_password auth methods

connection = pymysql.connect(host='localhost',
                                 user='root',
                                 password='568hdfyrtyey',
                                 database='test1')
cursor = connection.cursor()

pymysql报错：RuntimeError: 'cryptography