Python – mysqlDB,sqlite结果作为字典

当我做某事时

sqlite.cursor.execute("SELECT * FROM foo")
result = sqlite.cursor.fetchone()

我想必须记住这些列似乎能够把它们取出来的顺序,例如

result[0] is id
result[1] is first_name

有没有办法返回字典？所以我可以使用结果[‘id’]或类似的？

编号列的问题是,如果您编写代码,则插入一列,您可能需要更改代码,例如first_name的result [1]现在可能是date_joined,因此必须更新所有代码…

David Beazley在他的Python Essential Reference中有一个很好的例子.

我手上没有这本书,但我认为他的例子是这样的：

def dict_gen(curs):
    ''' From Python Essential Reference by David Beazley
    '''
    import itertools
    field_names = [d[0].lower() for d in curs.description]
    while True:
        rows = curs.fetchmany()
        if not rows: return
        for row in rows:
            yield dict(itertools.izip(field_names, row))

样品用量：

>>> import sqlite3
>>> conn = sqlite3.connect(':memory:')
>>> c = conn.cursor()
>>> c.execute('create table test (col1,col2)')
<sqlite3.Cursor object at 0x011A96A0>
>>> c.execute("insert into test values (1,'foo')")
<sqlite3.Cursor object at 0x011A96A0>
>>> c.execute("insert into test values (2,'bar')")
<sqlite3.Cursor object at 0x011A96A0>
# `dict_gen` function code here
>>> [r for r in dict_gen(c.execute('select * from test'))]
[{'col2': u'foo', 'col1': 1}, {'col2': u'bar', 'col1': 2}]