Python's variables are not buckets that contain objects; they're pointers. Assignment statements don't copy: they point a variable to a value (and multiple variables can "point" to the same value).
Article at https://pym.dev/variables-are-pointers/
More #Python screencasts at https://pym.dev/screencasts/
00:00 Changing two lists at once
01:09 Variables are separate from objects
01:38 Assignment statements don't copy
02:04 Explicitly copying a list
02:30 Variables are like pointers, not buckets
Watch video Variables are pointers in Python online without registration, duration hours minute second in high quality. This video was added by user Python Morsels 02 May 2024, don't forget to share it with your friends and acquaintances, it has been viewed on our site 800 once and liked it 61 people.