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This video is not optional because the material is advanced. It is optional because this video series has run long and this topic is less important for you to know. When we are done with out…

Generators take iterators as input, but they also produce one as output. In this video we show how to chain iterators together, doing complex operations on our data.

Now that we know how generators work, it is time to write our own. In this video we show how easy it is. We just take out experience with the accumulator pattern and replace the accumulator with a…

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,…

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…

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…

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…

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…

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…

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…

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…

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…

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…

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…

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.

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,…