Loopback address

Q: How deeply does The Well-Grounded Python Developer: How the pros use Python and Flask cover loopback address?

Defines the loopback interface and demonstrates browser access, but stops short of broader network configuration.

As explained in The Well-Grounded Python Developer: How the pros use Python and Flask

Localhost is the hostname convention that identifies the local computer in network communications.

A loopback address lets a computer host and access a server locally, even without a network card. The conventional address is 127.0.0.1, also called localhost. section 6.4.2

Testing a local Flask server

Start Flask’s development server, then visit http://127.0.0.1:5000 in a browser. The server receives the request and can return “Hello World!”; port 5000 is a configurable default. section 6.4.2

* Serving Flask app "app.py" (lazy loading)
 * Environment: development
 * Debug mode: on
 * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
 * Restarting with stat
 * Debugger is active!
 * Debugger PIN: 325-409-845

Use the server output to identify the local address, port, development mode, and command for stopping the process. section 6.4.2

How The Well-Grounded Python Developer: How the pros use Python and Flask covers it

Cover of The Well-Grounded Python Developer: How the pros use Python and Flask

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Related concepts

browserused by · A web browser is software that retrieves, interprets, and renders web resources, executes supported web content, and enables interaction with web pages and applications.
containeralternative to · A software container is an isolated execution environment that packages an application and its dependencies while sharing the host operating system kernel.
loopback interfacecontrasts with · A loopback interface is a virtual network interface that routes traffic back through the same host or network stack without using an external network.
service namealternative to · A service name is the identifier assigned to a Docker Compose service and used for addressing that service within the Compose network.
uriused by · A URI (Uniform Resource Identifier) is a standardized character sequence that identifies an abstract or physical resource.

This explainer was generated by Manning's knowledge graph from the text of The Well-Grounded Python Developer: How the pros use Python and Flask. The section links point to the parts of the book it draws on.