What if I don't close the database connection in Python SQLite

Question

I am doing something like this...

conn = sqlite3.connect(db_filename)

with conn:
    cur = conn.cursor()
    cur.execute( ... )

with

Answer 1

This is the code that I use. The Connection and the Cursor will automatically close thanks to contextlib.closing(). The Connection will automatically commit thanks to the context manager.

import sqlite3
import contextlib

def execute_statement(statement):
    with contextlib.closing(sqlite3.connect(path_to_file)) as conn: # auto-closes
        with conn: # auto-commits
            with contextlib.closing(conn.cursor()) as cursor: # auto-closes
                cursor.execute(statement)