description
The
description property of a
Cursor object allows to query the number of columns and their names from the most recently executed statement:
import sqlite3
db = sqlite3.connect(':memory:')
cur = db.cursor()
db.execute("create table t (c1, c2, c3)")
db.execute("insert into t values('foo', 1, 'one' )")
db.execute("insert into t values('bar', 2, 'two' )")
db.execute("insert into t values('baz', 3, 'three')")
colWidth = 6
first = True
for rec in cur.execute('select * from t'):
if first:
for colName in [colDesc[0] for colDesc in cur.description]:
print(' ', end='')
print(colName.ljust(colWidth, ' '), end='')
print('')
for colNo in range(len(cur.description)):
print(' ', end='')
print('-'.ljust(colWidth, '-'), end='')
print('')
first = False
for colNo in range(len(cur.description)):
print(' ', end='')
print(str(rec[colNo]).ljust(colWidth, ' '), end='')
print('')
This example prints:
c1 c2 c3
------ ------ ------
foo 1 one
bar 2 two
baz 3 three