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

why my code is not executing?

please help! it is showing 'Bummer! Couldn,t find "covers" '.

def covers(single_set):
    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"}
    for key, value in COURSES.items():
        if set(single_set).issubset(value) :
    return my_list

1 Answer

Chris Freeman
Chris Freeman
Treehouse Moderator 68,094 Points

This challenge is looking for the less precise simple overlap and not a proper subset comparison. Using intersection instead of issubset