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Lecture 6, Thu 08/16

Formatting, mutability, swapping, word-counting example

Code from classs

https://github.com/ucsb-cs8-m18/code-from-class/tree/master/08-16

Python print documentation Python isspace documentation

Pair Programming

https://www.youtube.com/watch?v=rG_U12uqRhE

Try to choose a partner near the same prior experience and confidence level as yourself.

You will learn more than if you and your partner are at very disparate levels of experience/confidence.

Strong Style Pairing

All code goes through two minds.

http://llewellynfalco.blogspot.com/2014/06/llewellyns-strong-style-pairing.html

iClicker Questions

  1. Consider the following code:

    l = [[1,2,3], [4,5,6], [7,8,9]] for inner_l in l: for n in inner_l: print(n + 1)

    Assuming you run this code in the REPL, what is the second thing that gets printed?

    (a) 1 (b) 2 (c) 3 (d) Something else

In-Class Questions / Schedule of Events

  1. Immutable vs. mutable objects, and parameter passing. How do function calls look in memory?

  2. Formatted output. Month/Day/Year, Day/Month/Year, 10×10 times table example.

  3. Swapping variables.

  4. Word count example.

  5. Together, let’s write a function that draws a bunch of concentric turtle graphics circles using a loop.