Day 57/100 of #100DaysOfPythonTips 🐍 len(obj) -> obj.__len__() next(obj) -> obj.__next__() Built-in functions delegate behavior to dunder (double-underscore) methods implemented on objects. That’s how Python lets your own classes behave like built-in types #Python

Day 56/100 of #100DaysOfPythonTips 🐍 zip(strict=True) is your silent bug killer. It forces iterables to have the same length instead of quietly truncating data. #Python #pythonlearn #100DaysOfCode

Day 55/100 of #100DaysOfPythonTips 🐍 Did you know there are 5 ways to merge dicts in python! Do you know any other way? #Python #pythonlearn #100DaysOfCode

Day 54/100 of #100DaysOfPythonTips 🐍 Python has a weird superpower: True and False are actually numbers. Yep — True == 1 and False == 0. #Python #pythonlearn #100DaysOfCode

Day 53/100 of #100DaysOfPythonTips 🐍 Put * in a function signature to force keyword-only arguments. #Python #pythonlearn #100DaysOfCode

Day 52/100 of #100DaysOfPythonTips 🐍 dict.setdefault for setting default values for dicts #Python #pythonlearn #100DaysOfCode

Day 51/100 of #100DaysOfPythonTips 🐍 Most if / elif chains are a code smell. If your logic looks like this: “If A do this, if B do that…” You probably need a dispatch table — not more ifs. Use a dictionary that maps keys → functions. #Python #pythonlearn #100DaysOfCode

Day 50/100 of #100DaysOfPythonTips 🐍 Suppress errors like a pro #Python #pythonlearn #100DaysOfCode

Day 49/100 of #100DaysOfPythonTips 🐍 If a function is pure, Python can safely cache it and skip recomputation. #Python #pythonlearn #100DaysOfCode

Day 48/100 of #100DaysOfPythonTips 🐍 EAFP! #Python #pythonlearn #100DaysOfCode

Day 47/100 of #100DaysOfPythonTips 🐍 If you are counting things, Counter is your superpower. collections.Counter gives you: • instant counts • most common items #Python #pythonlearn #100DaysOfCode

Day 46/100 of #100DaysOfPythonTips 🐍 Python’s for loop has an else. The else block runs only if the loop didn’t break. “If I never found it, do this.” It’s perfect for search logic — clean, readable, and almost nobody uses it.🧠🐍 #Python #pythonlearn #100DaysOfCode

Day 45/100 of #100DaysOfPythonTips 🐍 Using lists for everything in Python is like using a hammer for every tool. It works… until performance matters. #Python #pythonlearn #100DaysOfCode

Day 44/100 of #100DaysOfPythonTips 🐍 sum() is one of those tools people think they know, but barely use 30% of its power. Here are real, practical examples. #Python #pythonlearn #100DaysOfCode

Day 43/100 of #100DaysOfPythonTips 🐍 Use sorted with key Write code that explains itself. Python gives you the tools — use them. #Python #pythonlearn #100DaysOfCode

Day 42/100 of #100DaysOfPythonTips 🐍 * set is implemented as a hash table → average O(1) lookup * list is a dynamic array → O(n) linear scan * If you care about existence, use a set. * If you care about order or duplicates, use a list. #Python #pythonlearn #100DaysOfCode

Day 41/100 of #100DaysOfPythonTips 🐍 zip your jacket to keep warm :) #Python #pythonlearn #100DaysOfCode

Day 41/100 of #100DaysOfPythonTips 🐍 Sick and tired of KeyError? Say hello to my little friend: defaultdict #Python #pythonlearn #100DaysOfCode

Day 40/100 of #100DaysOfPythonTips 🐍 Need index of a list when you loop over? enumerate to the rescue! #Python #pythonlearn #100DaysOfCode

Day 39/100 of #100DaysOfPythonTips 🐍 Most Basic explanation of Python generators. p.s. : the one you can understand #Python #pythonlearn #100DaysOfCode