Python gave me 16. I expected 36. Here’s why — and why it matters for your code. Python has 6 types of operators. Most tutorials teach you 2. ① Arithmetic — +, -, *, /, //, %, ** The ones beginners miss: // (floor division) and % (remainder/modulus) ② Comparison — ==, !=, >, <, >=, <= All return True or False. Power every if statement and Pandas filter. ③ Logical — and, or, not df[(df[‘age’] > 18) & (df[‘score’] > 50)] ← two conditions, one line ④ Assignment — +=, -=, *=, /= Stop writing a = a + 5. Just write a += 5. ⑤ Membership — in, not in ‘Delhi’ in cities → True. Check membership in one word. ⑥ Identity — is, is not a == b → True (same values) a is b → False (different objects in memory) These are not the same thing. Now — why 10 + 2 * 3 = 16: Python follows PEMDAS. Multiplication first: 2*3=6, then 10+6=16. Want 36? → (10 + 2) * 3 Parentheses always go first. Always. Day 10 of learning Python for data science — documenting every concept. Which operator did you not kno...