Pros and Cons of Flask and FastAPI (When to Use Each?)

Python microframeworks.

Whenever someone mentions this, the first thing that typically comes to mind for the speaker — if they are a developer — is Flask and FastAPI. This is because both are useful for creating small-scale data science web applications.

But which micro-framework should one use? Flask or FastAPI? Because both libraries offer similar features. Before discussing the pros and cons, let’s see what Flask and FastAPI are.

Flask is a web framework designed for creating web applications. It …

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