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

Posted by Mathew Yangang
Mathew Yangang
4,433 Points

second challenge

I'm confuse, how to tackle the second challenge. Any idea?

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):
    course_list = []
    for course,sets in COURSES.items():
        if topics.intersection(sets):
            course_list.append(course)
    return course_list        

def covers_all(single_set):
    all_course=[]