Outline for November 19, 2020

Reading: §3.7, 4.5, 7.7
Due: Homework 4, due December 1, 2020

1. Handling exceptions
   1. except [except0.py]
   2. except exceptcode [except1.py]
   3. else [except2.py]
   4. except exceptcode as msgvar [except3.py]
   5. finally [except4.py]
   6. Exceptions in a function: who handles them? [except5.py, except6.py]
   7. Using global variables as error flags [except6a.py]
   8. raise exceptcode message [except7.py]

2. Randomness [random.py]
   1. Pseudorandomness vs. randomness
   2. random returns random number between 0.0 and 1.0 (but never 1.0)
   3. randint(low, high) returns random integer between low and high inclusive
   4. seed(n) uses a fixed starting point for the sequence
   5. choice(seq) returns a randomly-selected element of the sequence seq
   6. choices(seq, k=n) returns a list of n randomly-selected elements of the sequence seq
   7. shuffle(seq) shuffles the elements of the sequence seq in place

Matt Bishop Office: 2209 Watershed Sciences Phone: +1 (530) 752-8060 Email: mabishop@ucdavis.edu

MHI 289I, Programming for Health Informatics Version of November 17, 2020 at 10:42PM

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