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

fahad lashari
fahad lashari
7,693 Points
Posted by fahad lashari
fahad lashari
7,693 Points

Really stuck on this problem. Can someone help out or provide a hint?

Just a newbie here. I am able to get the values of the courses where the supplied set and the values from the COURSES dictionary overlap. However I am struggling to get the key of the courses. I have managed to get the actual courses doing the following:

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):
    list = []
    for value in COURSES.values():
        if set.intersection(value):
            list.append(value)
        return list

And I tried to solve this using dictionary unpacking however I couldn't achieve the desired result:

def covers(set):
    list = []
    for key, value in COURSES.items():
        if set.intersection(value):
            list.append(key)
        return list

Any help would be greatly appreciated.

Kind regards,

Fahad

1 Answer

Jason Anello
Jason Anello
Courses Plus Student 94,610 Points

Hi fahad,

You're on the right track with your second attempt but you have your return statement indented 1 level too far. Should be lined up with the for

Also, I would recommend that you don't use set and list for variable names since these are built in types.