相关疑难解决方法(0)

我喜欢Python列表理解语法.

它也可以用来创建字典吗？例如,通过迭代成对的键和值:

mydict = {(k,v) for (k,v) in blah blah blah}  # doesn't work

#!/usr/bin/env python
# -*- coding: utf-8 -*-

from sqlalchemy import create_engine

connection = create_engine('mysql://user:passwd@localhost:3306/db').connect()

result = connection.execute("select * from table")
for v in result:
        print v['id']
        print v['name']
connection.close()

我如何动态地获得TABLES COLUMNS NAMES？在这种情况下id,并name