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

Siddharth Pande
Siddharth Pande
9,046 Points
Posted by 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
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
wayne ross
wayne ross
3,225 Points

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