Dictionaries (and sets) are not sequences, because they don't have an order--a dictionary is allowed to store things however it wants so that it can use an efficient hashing.

Sequences Learning Goals Utilize Python's list, tuple, range, and str data types to accomplish several common programming tasks. Execute and test Python code using the Python shell and pytest.

Sorting a list in Python is simple, and you have two options: In-place: Modifies the list. Out-of-place: Returns a new list and doesn't modify the original list. The sort method is in-place, and it ...

Introduction A sequence is a simple data structure that is present in all programming languages in which data is stored in a specified order. The elements of a sequence can be accessed by their index.

Iterators give the programmer the ability to traverse or “iterate through” elements of a data set. They are especially useful when the items of such sets are of differing types. Python has already ...