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Read all of chapter 1, sections 1.1 through 1.7 in the book and do the examples. This is only 6 pages, but it's one of the longest readings you'll have to do all semester. While reading, you should try out all the examples provided. If you want to install Python 3 on your own computer, I have a video about Python 3 basics and I talk about this at the beginning.
When you're finished, try out some additional things in interactive mode. One sort of thing is that you can put some arithmetic inside the parentheses when checking types:
>>> type(8)
<class 'int'>
>>> type(4 + 4)
<class 'int'>
>>> type(2 + 4 + 2)
<class 'int'>
>>>
All of those do the same thing because it does the arithmetic before checking the type.
See what different kinds of errors you can create. We'll talk about different errors in class.