Question

In python what is the difference between these two?

sequence = range(10)
buffer = sequence

and

sequence = range(10)
buffer = [item for item in sequence]

Answer 1

in the first one, you are creating an alias called 'b' to 's' and therefore any changes to make to 'b' will also change the contents of 's'
in the second one, you are using list comprehensions to create a separate copy of 's' in 'b'. so any changes in 'b' now will NOT be reflected in 's'.