如何将超集与mysql数据库连接？

Question

我试图使用此 SQLAlchemy URI 将超集与 mysql 数据库连接：mysql://localhost:3306/mysql/database/table1 但无法连接。

我收到此错误：

ERROR: {"error": "Connection failed!

The error message returned was:
No module named 'MySQLdb'", "stacktrace": "Traceback (most recent call last):
  File \"/Users/akay/venv/lib/python3.7/site-packages/superset/views/core.py\", line 1703, in testconn
    engine = database.get_sqla_engine(user_name=username)
  File \"/Users/akay/venv/lib/python3.7/site-packages/superset/utils/core.py\", line 131, in __call__
    value = self.func(*args, **kwargs)
  File \"/Users/akay/venv/lib/python3.7/site-packages/superset/models/core.py\", line 923, in get_sqla_engine
    return create_engine(url, **params)
  File \"/Users/akay/venv/lib/python3.7/site-packages/sqlalchemy/engine/__init__.py\", line 479, in create_engine
    return strategy.create(*args, **kwargs)
  File \"/Users/akay/venv/lib/python3.7/site-packages/sqlalchemy/engine/strategies.py\", line 87, in create
    dbapi = dialect_cls.dbapi(**dbapi_args)
  File \"/Users/arkay/venv/lib/python3.7/site-packages/sqlalchemy/dialects/mysql/mysqldb.py\", line 118, in dbapi
    return __import__(\"MySQLdb\")
    ModuleNotFoundError: No module named 'MySQLdb'
"}

Answer 1

MySQLdb 与 Python 3 不兼容，您需要使用 pymysql。

安装pymysql：

$ pip install pymysql

使用以下 URI 字符串连接到 mysql 数据源。

mysql+pymysql://user:pass@host/databasename