Copy List in Python – copy(), For Loop & Index Explained скачать в хорошем качестве

Copy List in Python – copy(), For Loop & Index Explained

In this video, you will learn how to copy a list in Python using three different methods: Using copy() method Using for loop Using index (range & len) You will also understand the important concept of reference vs actual copy (aliasing problem). 1️⃣ Using copy() Method original = [10, 20, 30, 40] copy_list = original.copy() print("Original:", original) print("Copy:", copy_list) ✔ Creates a new list ✔ Changes in copy do NOT affect original 2️⃣ Using For Loop original = [10, 20, 30, 40] copy_list = [] for item in original: copy_list.append(item) print(copy_list) ✔ Manual copying ✔ Good for understanding list behavior 3️⃣ Using Index original = [10, 20, 30, 40] copy_list = [] for i in range(len(original)): copy_list.append(original[i]) print(copy_list) ✔ Same result, different logic ✔ Helps understand indexing ❌ Wrong Way (Aliasing Problem) copy_list = original This does NOT create a new list. Both variables point to the same memory location. Topics Covered List copy method Manual copying using loop Index-based copying Aliasing concept Interview-focused explanation Perfect for beginners and Python interview preparation. 👉 LIKE | SHARE | SUBSCRIBE for more Data Structures tutorials.