Configuration management in Flask - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is configuration management in Flask?

It is the process of setting up and managing settings that control how a Flask app behaves, like database info, debug mode, or secret keys.

beginner

How do you load configuration from a Python file in Flask?

Use app.config.from_pyfile('config.py') to load settings from a Python file named config.py.

beginner

What is the purpose of SECRET_KEY in Flask configuration?

It is used to keep client sessions secure and protect against attacks like CSRF by signing cookies and forms.

intermediate

How can environment variables be used in Flask configuration?

You can read environment variables in your config file or code to set values dynamically, helping keep secrets out of code.

intermediate

What is the difference between app.config.from_object() and app.config.from_pyfile()?

from_object() loads config from a Python object or class, while from_pyfile() loads from a Python file on disk.

Which Flask method loads configuration from a Python file?

A app.config.from_pyfile()

B app.load_config()

C app.config.load_file()

D app.set_config()

The correct method to load config from a Python file is app.config.from_pyfile().

What is the role of SECRET_KEY in Flask?

A To secure sessions and sign cookies

B To set the app's debug mode

C To configure the database URL

D To define the app's port number

SECRET_KEY is used to secure sessions and sign cookies in Flask.

How can you keep sensitive info like passwords out of your Flask code?

A Hardcode them in the app.py

B Store them in static files

C Print them in logs

D Use environment variables

Environment variables keep secrets out of code and allow dynamic configuration.

Which method loads config from a Python class or object?

A app.config.load_class()

B app.config.from_pyfile()

C app.config.from_object()

D app.config.from_envvar()

app.config.from_object() loads config from a Python object or class.

What is a good practice for managing different configs for development and production?

A Use the same config for all environments

B Use separate config files or classes for each environment

C Hardcode production settings in development

D Change config manually in the code each time

Separate config files or classes help manage settings cleanly for different environments.

Explain how Flask configuration management helps keep your app flexible and secure.

Think about how settings control app behavior and protect sensitive info.

Describe the steps to set up configuration in a Flask app using a Python file and environment variables.

Consider how to combine files and environment for flexible config.