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

For managing a connection to a database I usually do this,

# query method belonging to a DB manager class

def query (self, sql):
    con = sqlite3.connect(self.dbName)
    with con:
        cur = con.cursor()
        cur.execute(sql)
        res = cur.fetchall()
    if con:
        con.close()

    return res

doing so, I'm sure that the connection is explicitly closed.