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

Katy Teague
Katy Teague
1,371 Points


I have written the code and tested it in work spaces (and it works correctly!) but when I type it into the challenge it says bummer: couldn't find covers!

It's been happening a lot to me recently but normally after a few goes it works but this time it's not having it!

Any ideas?

def covers(topic):
    results = []
    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"}

    for key in COURSES.keys():
        if topic.intersection(COURSES[key]):
    return results

1 Answer

Katy Teague
Katy Teague
1,371 Points

I finally got it working when I moved def covers to below the pre-written dictionary COURSES!