Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

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

Lee McCormick
seal-mask
.a{fill-rule:evenodd;}techdegree
Lee McCormick
Python Web Development Techdegree Student 16,595 Points

my code seems correct from fiddle but i cant see what it is testing it with

if i could see what is being tested against this code, it would be beneficial in being able to solve as this works in fiddle

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"}
}

def covers(topics):
    courses_that_cover = []

    for topic in COURSES:
        if COURSES[topic] & topics == topics:
            courses_that_cover.append(topic)

    return courses_that_cover

1 Answer

Steven Parker
Steven Parker
231,275 Points

For this function, you only need to determine if there is any overlap. It's not necessary for the overlap to exactly match the input set.

        if COURSES[topic] & topics:  # check for any overlap

But your concept may come in handy for the next task!