Bill Allen <walle...@gmail.com> writes: > If I have a list defined as my_list = ['a','b','c'], what is the is > differnce between refering to it as my_list or my_list[:]?
‘my_list’ is a reference to the object you've already described (the existing object ‘['a', 'b', 'c']’). ‘my_list[:]’ is an operation that takes the original object and creates a new one by slicing. In this case, the new object happens to be equal to (but probably not identical to) the original, because of the slice you specified. > Is there any nuance I am missing here? Situations where one form > should be used as opposed to the other? You need to understand, when writing code, whether you are intending to refer to the original object, or to create a new one. Neither is better, they are both common but different operations. -- \ “Our products just aren't engineered for security.” —Brian | `\ Valentine, senior vice-president of Microsoft Windows | _o__) development, 2002 | Ben Finney _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
