找不到名为游标的模块

Question

我只是在VPS上安装了PyMySQL，安装似乎没有任何问题。为了确保一切正常，我尝试执行在他们的文档中找到的以下脚本。Python 2.7.5 和 Python 3.6.5Server version: 10.1.34-MariaDB MariaDB Serverimport pymysql.cursors# Connect to datebasecon = pymysql.connect(host='localhost',                    user='dbuser',                    password='dbpass',                    db='dbname',                    charset='utf8mb4',                    cursorclass=pymysql.cursor.DictCursor)try:    with con.cursor() as cursor:        # Create new record        sql = "INSERT INTO `test` (`idx`, `title`, `description`, `category`) VALUES (%s, %s, %s, %s)"        cursor.execute(sql, (1, 'Fake Title', 'Fake description about a fake post.', 'WELLNESS'))    with con.cursor() as cursor:        # Read a single record        sql = "SELECT `idx`, `title` FROM `test` WHERE `idx`=%s"        cursor.execute(sql, ('1'))        result = cursor.fetchone()finally:    with open('dbText.txt', 'w') as f:        f.write('%s'.format(result))        con.close()但是，我收到一个ImportError，显示为No module found named cursors。[root@host public_html]# python pymysql.pyTraceback (most recent call last):    File "pymysql.py", line 1, in <module>        import pymysql.cursors    File "/home/bldsprt/public_html/pymysql.py", line 1, in <module>        import pymysql.cursorsImportError: No module named cursors[root@host public_html]# python3.6 pymysql.pyTraceback (most recent call last):  File "pymysql.py", line 1, in <module>    import pymysql.cursors  File "/home/bldsprt/public_html/pymysql.py", line 1, in <module>    import pymysql.cursorsModuleNotFoundError: No module named 'pymysql.cursors'; 'pymysql' is not a package我需要cursors单独安装模块吗？