How can I get dict from sqlite query?

Question

db = sqlite.connect("test.sqlite")
res = db.execute("select * from table")

With iteration I get lists coresponding to the rows.

for row in res:
    print row

I can get name of the columns

col_name_list = [tuple[0] for tuple in res.description]

But is there some function or setting to get dictionaries instead of list?

{'col1': 'value', 'col2': 'value'}

or I have to do myself?

Answer 1

You could use row_factory, as in the example in the docs:

import sqlite3

def dict_factory(cursor, row):
    d = {}
    for idx, col in enumerate(cursor.description):
        d[col[0]] = row[idx]
    return d

con = sqlite3.connect(":memory:")
con.row_factory = dict_factory
cur = con.cursor()
cur.execute("select 1 as a")
print cur.fetchone()["a"]

or follow the advice that's given right after this example in the docs:

If returning a tuple doesn’t suffice and you want name-based access to columns, you should consider setting row_factory to the highly-optimized sqlite3.Row type. Row provides both index-based and case-insensitive name-based access to columns with almost no memory overhead. It will probably be better than your own custom dictionary-based approach or even a db_row based solution.