list_inplace_cheatsheet.rst

List in-place operations

method	examples
sort	l = [2, 4, 1] l.sort() # -> None! l # -> [1, 2, 4]
	l = [('me', 4), ('you', 2)] l.sort(key=lambda x: x[1]) # -> None! l # -> [('you', 2), ('me', 4)]
reverse	l = [2, 4, 1, 3] l.reverse() # -> None! l # -> [3, 1, 4, 2]

sort vs sorted

In addition to the list method sort there is the built-in function sorted. It accepts a list and return a new, sorted list!. The original list is untouched.