Using SQLite in a Python program

Question

I have created a Python module that creates and populates several SQLite tables. Now, I want to use it in a program but I don\'t really know how to call it properly. All the

Answer 1

• Sqlite doesn't throw an exception if you create a new database with the same name, it will just connect to it. Since sqlite is a file based database, I suggest you just check for the existence of the file.
• About your second problem, to check if a table has been already created, just catch the exception. An exception "sqlite3.OperationalError: table TEST already exists" is thrown if the table already exist.

import sqlite3
import os
database_name = "newdb.db"
if not os.path.isfile(database_name):
    print "the database already exist"
db_connection = sqlite3.connect(database_name)
db_cursor = db_connection.cursor()
try:
    db_cursor.execute('CREATE TABLE TEST (a INTEGER);')
except sqlite3.OperationalError, msg:
    print msg