john = find_user_by_username("john_doe") print(f"Found: john")
def insert_user(username, email, age): conn = sqlite3.connect('my_database.db') cursor = conn.cursor() # Method 1: Using ? placeholders (recommended - prevents SQL injection) cursor.execute( "INSERT INTO users (username, email, age) VALUES (?, ?, ?)", (username, email, age) ) sqlite3 tutorial query python fixed