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

Chul Kim
Chul Kim
2,341 Points

what is wrong with the code?

I picked up list comprehensions while reading something and thought I would give it a try in this exercise.

When i type in the example input I get the same example output in the question. However, when I click check work I am getting an error.

What seems to be the problem?

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(x):
    list_of_course = [course_title for course_title, topics in COURSES.items() if x & topics]
    return list_of_course

1 Answer

Dave StSomeWhere
Dave StSomeWhere
19,822 Points

This gets accepted for me, You might try restarting the challenge and/or restarting your browser - it's probably just the challenge checker getting messed up.