Adding items to nested lists Python

[c.poupin]

Hi @Alien

There is problem with your list (at initialization /construction), see this post

Putting items at a specific index index in a table using Python, seemingly inconsistent

When we use lstB = [[0] * 5] * 3 Python store each sub-list at same address memory (same object), so when we set a value, we set all sub-list (Python lists are mutable) [image] Test with 2 methods [image]