10. Glossary

collection data type
A data type in which the values are made up of components, or elements, that are themselves values.
dot notation
Use of the dot operator, ., to access functions inside a module, or to access methods and attributes of an object.
Data types whose content cannot be changed after creation (e.g., strings, ints, floats, tuples).
A variable or value used to select a member of an ordered collection, such as a character from a string, or an element from a list.
A part of a string (substring) specified by a range of indices. More generally, a subsequence of any sequence type in Python can be created using the slice operator (sequence[start:stop]).
To iterate through the elements of a collection, performing a similar operation on each.
Any of the characters that move the cursor without printing visible characters. The constant string.whitespace contains all the white-space characters.