Search for tag: "tuple"

Zoom Oct. 20. Recursion

Recursion is a powerful programming tool and one of the fundamental principles of computer science. It is used in many advanced algorithms.In this session, we will just focus on divide-and-conquer,…

From  Hannah Lee on October 27th, 2020 10 plays

Lesson 20.10 Representation Methods

When we first introduced objects, we talked about the concept of object representation. But how does Python know how to use this representation. In this video, we see that this is the result of…

From  Hannah Lee on October 27th, 2020 29 plays

Lesson 19.8 Keyword Expansion (OPTIONAL)

This video introduces an advanced topic that is completely optional and will not appear on any exam. Keyword expansion is the dictionary version of tuple expansion. It is used in modules like Kivy to…

From  Hannah Lee on October 27th, 2020 3 plays

Lesson 19.5 Dictionaries and For-Loops

Dictionaries are not sliceable, but they are iterable. In this video we show the many different ways you can use a dictionary in a for-loop. The primary thing to understand is that you have to…

From  Hannah Lee on October 27th, 2020 33 plays

Zoom Oct. 15. For-Loops

In this session, we review the for-loop, which is the next control structure. This is the last control structure we will need for a while.For-loops are pretty easy to use in Python, and most students…

From  Hannah Lee on October 19th, 2020 6 plays

Zoom Oct. 13. Lists (and Sequences)

In this session we review the two new sequence data types: tuples, and lists. This is the last material on the first prelim.For the most part these are similar to strings, and so we will do a lot of…

From  Hannah Lee on October 19th, 2020 3 plays

Lesson 17.4 Divide and Conquer

Recursion has many, many uses. But one of the most popular applications is divide-and-conquer. In this video we introduce this new concept and show how we will use to solve several problems on…

From  Hannah Lee on October 19th, 2020 44 plays

Lesson 16.8 Tuple Expansion (OPTIONAL)

This video introduces an advanced topic that is completely optional and will not appear on any exam. You might have noticed that some functions, like max can take an arbitrary number of arguments. In…

From  Hannah Lee on October 19th, 2020 8 plays

Lesson 16.4 Range-Based For-Loops

Strings, lists, and tuples are not the only iterable types. In this video we introduce the range function, which creates another iterable value. This is going to allow us to do several things that we…

From  Hannah Lee on October 19th, 2020 30 plays

Lesson 15.8 Slice Assignment (OPTIONAL)

This video introduces an advanced topic that is completely optional and will not appear on any exam. Lists don’t just allow us to use a single position in an assignment statement. We can also…

From  Hannah Lee on October 10th, 2020 5 plays

Lesson 15.7 Mutable List Functions

Because lists are mutable, just like general objects, we can modify them in the body of a function. In this video we show how to write mutable list functions, which are (typically) procedures that…

From  Hannah Lee on October 10th, 2020 16 plays

Lesson 15.4 List Assignment

The big advantage that lists have over tuples is that they are mutable.In this video we show how to write assignment statements that modify the contents of a list.

From  Hannah Lee on October 10th, 2020 16 plays

Lesson 15.3 List Expressions

In this video we introduce the list, which looks almost exactly the the same as a tuple, except that it is written differently. Indeed, it supports many of the same operations as tuples. Together,…

From  Hannah Lee on October 10th, 2020 16 plays

Lesson 15.2 Complex Tuple Expressions

Tuples are very, very similar to strings. In this video we explore this similarity, showing that they support many of the same operations and methods.

From  Hannah Lee on October 10th, 2020 15 plays

Lesson 15.1 Tuple Expressions

In this video we introduce the first new sliceable type, the tuple. We show why we need this new type, and why it is more flexible than a string.

From  Hannah Lee on October 10th, 2020 16 plays