Python Interview Trap: == vs is

🚨 Python Interview Trap: == vs is Many beginners think == and is are the same in Python… but they are NOT. ✔ == → compares values ✔ is → compares memory location (object identity) Example 👇 a = [1,2,3] b = [1,2,3] print(a == b) → True print(a is b) → False Why? Even though the values are the same, Python created two different objects in memory. Now look at this 👇 a = 256 b = 256 print(a is b) → True But… a = 257 b = 257 print(a is b) → False 📌 Reason: Python internally caches integers from -5 to 256. 💡 Interview Tip: Use == when comparing values, and is when checking object identity. Small concepts like this are commonly asked in Python interviews. #Python #CodingInterview #DataScience #MachineLearning #LearnInPublic #100DaysOfCode

To view or add a comment, sign in

Explore content categories