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

Posted by Habiba Ibrahim
Habiba Ibrahim
Courses Plus Student 1,336 Points

Set Math challenge for Python

Hi I've tried this code on IDLE and it gives me the result but not as a list and also including list(key) in the return statement does not give the required output. Can someone please give me some insight on it?

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(set):
    for key, value in COURSES.items():
        if set.intersection(value):
            return(list(key))

1 Answer

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,441 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,441 Points

You are very close! Current, your code will return only the first course that intersects.

Hint: Can you create a variable to hold all the matches then return that list after the loop completes?

Habiba Ibrahim
Habiba Ibrahim
Courses Plus Student 1,336 Points

Thanks a lot...your hint really helped