Python Coding challenge - Day 337| What is the output of the following Python Code?

 

Explanation:

from sqlalchemy import create_engine

This imports the create_engine function from SQLAlchemy.

SQLAlchemy is a popular Python library for working with relational databases. It provides tools for both SQL and Object-Relational Mapping (ORM).

engine = create_engine('sqlite:///:memory:')

create_engine: Creates a database engine object that represents the database and its connection.

'sqlite:///:memory:': Specifies the type of database (sqlite) and that it will be created in memory (not stored on disk).

SQLite is a lightweight, file-based database.

:memory: indicates that the database will exist only while the program is running (temporary database).

The engine acts as the interface for communicating with the database.

connection = engine.connect()

engine.connect(): Establishes a connection to the SQLite database through the engine.

The connection object is used to execute SQL queries or transactions directly on the database.

print(connection.closed)

connection.closed: A property that indicates whether the connection is closed or not.

Returns True if the connection is closed.

Returns False if the connection is open.

Output: Since the connection has just been established, this will print:

False