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Python Python Collections (2016, retired 2019) Sets Set Math

Siddharth Pande
Siddharth Pande
9,046 Points

help needed!

Let's write some functions to explore set math a bit more. We're going to be using this COURSES dict in all of the examples. Don't change it, though!

So, first, write a function named covers that accepts a single parameter, a set of topics. Have the function return a list of courses from COURSES where the supplied set and the course's value (also a set) overlap.

For example, covers({"Python"}) would return ["Python Basics"].

sets.py
COURSES = {
    "Python Basics": {"Python", "functions", "variables",
                      "booleans", "integers", "floats",
                      "arrays", "strings", "exceptions",
                      "conditions", "input", "loops"},
    "Java Basics": {"Java", "strings", "variables",
                    "input", "exceptions", "integers",
                    "booleans", "loops"},
    "PHP Basics": {"PHP", "variables", "conditions",
                   "integers", "floats", "strings",
                   "booleans", "HTML"},
    "Ruby Basics": {"Ruby", "strings", "floats",
                    "integers", "conditions",
                    "functions", "input"}
}
Jeff Muday
Jeff Muday
Treehouse Moderator 28,720 Points

What is your specific question?

The challenge is to see if you understand that COURSES is a dictionary with keys which identify sets. The challenge objectives are:

1) if given a single topic, identify which courses have the topics in the set.

2) if given multiple topics (as a set) identify which courses contain both topics.

1 Answer

wayne ross
wayne ross
3,225 Points

Hey I dont understand your question fully, are you asking how to write the first function?