我写了这段代码来连接jupyter笔记本上的mysqlserver：

import sqlalchemy
from sqlalchemy import create_engine
engine = sqlalchemy.create_engine(‘mysql+mysqlconnector://root:password@localhost:3306/dbname′)

我得到以下错误：

File "<ipython-input-12-c958f7670e02>", line 6
    engine = sqlalchemy.create_engine(‘mysql+mysqlconnector://root:password@localhost:3306/events′)
                                           ^
SyntaxError: invalid character in identifier

pip list 命令还列出 PyMySQL (0.9.2) .