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

Dmitriy Ignatiev
PLUS
Dmitriy Ignatiev
Courses Plus Student 6,236 Points
Posted by Dmitriy Ignatiev
Dmitriy Ignatiev
Courses Plus Student 6,236 Points

covers_all

Hi there. Couldn't solve challenge 2/2

Please help me understand how to solve.

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 (parametr):
    new_list = []
    for i in COURSES:
        if COURSES[i] & parametr :
            new_list.append(i)
    return (new_list)

1 Answer

Fernando Cordeiro
Fernando Cordeiro
34,597 Points
Fernando Cordeiro
Fernando Cordeiro
34,597 Points

Dictionaries don't have indexes Try something that runs through the key value pairs instead.

 for key, value in COURSES.items():
        if set(parametr) & set(value):
            solution.append(key)