Python is known for being dynamic, fast to prototype with, and easy to write. But these same characteristics can introduce bugs that are only caught at runtime.
Static type checking—validating code without running it—helps you catch bugs earlier. This is where Pyright enters the stage.
Python is known for being a dynamically typed language — you don’t have to declare variable types, and everything works at runtime. But as your codebase grows, undetected type errors can creep in. That’s where Mypy comes in.
Mypy is a static type checker for Python. It checks your Python code for type errors without running it.
If you've heard developers or tech leads talk about "shifting left", it may sound like some kind of command-line trick. But in reality, "shift left" is a mindset — and it's becoming increasingly important in modern software development.
Whether you're writing Python or any other language, understanding this approach can help you build more reliable code, find bugs earlier, and ship faster.
Before diving into Shift Left, which emphasizes catching bugs, performance, and security issues early in the software development lifecycle, it’s important for new programmers to learn the foundational paradigms that support this philosophy.
These paradigms teach early thinking, good code hygiene, and automation — all of which are building blocks of effective software engineering.