Hello, checkiomates🐱‍👤!

This week's digest explores the path to mastery, defining what truly makes a developer senior beyond years of experience. We also break down the SOLID principles for better Python design and dive deep into the internals of dataclasses. Our mission is a fundamental logic test: identify if an integer is positive, negative, or zero.

💡TIP

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🏁 MISSION

Integer Sign Determination by freeman_lex -

Identify whether a given integer is positive, negative, or zero and return a respective string: "positive", "negative" or "zero".

determine_sign(5) == "positive"
determine_sign(0) == "zero"
determine_sign(-10) == "negative"

📖 ARTICLES

What Actually Makes You Senior -

This opinion piece argues that there is one skill that separates senior engineers from everyone else. It isn’t technical. It’s the ability to take ambiguous problems and make them concrete.

SOLID Design Principles: Improve Object-Oriented Code in Python -

Learn how to apply SOLID design principles in Python and build maintainable, reusable, and testable object-oriented code.

The Inner Workings of Python Dataclasses Explained -

Discover how Python dataclasses work internally! Learn how to use __annotations__ and exec() to make our own dataclass decorator!

👩‍💻CODE SHOT

What do you think the following code does?

checkio= lambda c1, c2: len({round(a/b, 2) for a, b in zip(dist(*c1), dist(*c2))}) == 1

dist = lambda a, b, c: sorted([hyp(*a, *b), hyp(*a, *c), hyp(*c, *b)])
    
hyp = lambda a, b, c, d: __import__("math").hypot(a - c, b - d)

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