Outline for November 15, 2021

Reading: §12, 13
Due: Homework 4, due November 22, 2021

1. Example of floating imprecision [roundoff.py]

2. Character/integer conversions [chr.py, ord.py]
   1. Cæsar cipher (shift cipher) [caesarenc.py, caesardec.py]

3. Reading a URL [geturl.py,geturl2.py,geturl3.py]
   1. Opening a URL
   2. Reading the page as a string
   3. The role of decode() [geturl-nd.py]

4. A program to print links in web pages [urlpat.py, urlpat2.py]

Matt Bishop Office: 2209 Watershed Sciences Phone: +1 (530) 752-8060 Email: [email protected]

ECS 235A, Computer and Information Security Version of November 15, 2021 at 10:28PM

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