November 2018
Beginner
304 pages
7h 35m
English
Content preview from Learn Programming in Python with Cody Jackson
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Mutability
As mentioned several times, one of the special things about lists is that they are mutable; that is, they can be modified in place without creating a new object. The big concern with this is remembering that, if you do this, it can affect other references to it. However, this isn't usually a large problem; it's more of something to keep in mind if you get program errors.
The following screenshot is an example of changing a list using index offset, slicing, and deleting elements:
Changing a list
Line 12 changes the value for the element at index 1 (second position in the list). Line 14 swaps out the first two elements for new values. ...
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