您是否尝试过:

result = db.engine.execute("<sql here>")

或:

from sqlalchemy import text

sql = text('select name from penguins')
result = db.engine.execute(sql)
names = [row[0] for row in result]
print names

请注意，db.engine.execute() 是无连接"，即 在 SQLAlchemy 2.0 中已弃用.

Note that db.engine.execute() is "connectionless", which is deprecated in SQLAlchemy 2.0.