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

Posted by Andrew McLane
Andrew McLane
3,385 Points

Covers function help

I'm not sure if I need to use union or intersection. Also, do I need to turn my argument and COURSES into a set before I can use a set operand?

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(single_set):
    sets = []
    for key, value in COURSES.items():
        if value in set(single_set).union(COURSES):
            sets.append(key)
    return sets

1 Answer

Stuart McIntosh
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.a{fill-rule:evenodd;}techdegree seal-36
Stuart McIntosh
Python Web Development Techdegree Graduate 22,874 Points
Stuart McIntosh
.a{fill-rule:evenodd;}techdegree seal-36
Stuart McIntosh
Python Web Development Techdegree Graduate 22,874 Points

hi there, you are very close - you need to use an intersection and if you look at Courses the value in the dict is already a set. So just test your single_set against the value.

Hope that helps