What is Flask in Python ?

Definition

• Flask is a lightweight, web framework for Python that allows developers to create web applications quickly and easily. It is designed to be simple and flexible, with minimal boilerplate code.

Examples

[pastacode lang=”python” manual=”from%20flask%20import%20Flask%0A%0Aapp%20%3D%20Flask(__name__)%0A%0A%40app.route(‘%2F’)%0A%0Adef%20home()%3A%0A%0A%C2%A0%C2%A0%C2%A0%20return%20%22Hello%2C%20Flask!%22%0A%0Aif%20__name__%20%3D%3D%20%22__main__%22%3A%0A%0A%C2%A0%C2%A0%C2%A0%20app.run(debug%3DTrue)” message=”” highlight=”” provider=”manual”/]

Output

[pastacode lang=”python” manual=”Hello%2C%20Flask!” message=”” highlight=”” provider=”manual”/]

Features

• Provides URL routing to map urls to specific functions.
• Uses Jinja2, a powerful templating engine, for rendering HTML templates.
• Flask provides only the essential tools needed to get a web application 

Advantages

• Easy to learn and use.
• Leads to faster development and performance.
• Offers flexibility in design and architecture.

Uses

• Quickly prototyping ideas due to its simplicity and ease of setup.
• Ideal for building microservices due to its lightweight nature.
• Used by beginners and educators for learning web development