Day 3
Today
- Gene Finder guest lecture by Joanne Pratt
- Reading journal day 1 debrief
- Exploring modular design
- Intro to unit testing
For Next Time
- Start on mini-project 1
- Read Think Python Ch. 8, 10.1-10.6.
- Do the reading journal.
Reading Journal Day 1 Debrief
We’ll go over some of the take homes from the reading journals that we collected from the class.
The day 2 reading journal responses are also now available.
Exploring Modular Design
In groups of 3, review the solutions from the class to the Exercise 3.3.
What aspects of these different designs:
- Increased / decreased the readability of code (readability means your ability to easily deduce what the code does, how it works, and whether or not it is correct).
- Increased / decreased the flexibility of the code (flexibility means the ability of this code to be easily modified to satisfy new requirements that may arise.
In groups, redo Chapter 3 Exercise 5 based on the design that your group decides is most readable and most flexible.
In a surprise move, your manager has asked you to implement two new features for your program.
1. Write a function that draws the following grid
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2. Modify your function to take in two additional inputs that specify the dimensions of width and height (in characters) of each of the boxes that compose the grid. For instance,
grid(6, 3) produces
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Running doctests
Doctests can be run in normal mode, in which only failing tests will be reported, or in verbose mode, which reports results from all tests.
If you’ve written a program called my_prog.py, you can test it from the
command line by running
$ python3 -m doctest [-v] my_prog.py
where the [-v] means you can either include the -v verbose flag or not.
You can also run doctests from inside your program, by including:
import doctest
doctest.testmod(verbose=True)
at the bottom.
Exercise: Add doctests to your is_triangle function from the Day 1 reading journal and verify your implementation.