Using sets

Question

Let's write some functions to explore set math a bit more. We're going to be using this COURSES dict in all of the examples. Don't change it, though!
So, first, write a function named covers that accepts a single parameter, a set of topics. Have the function return a list of courses from COURSES where the supplied set and the course's value (also a set) overlap.
For example, covers({"Python"}) would return ["Python Basics"].
my function is:
python
def covers(set1):
    list1 = []
    for items, values in COURSES.items():
        if(values & set1 == set1):
            list1.append(items)
            continue
    return(list1)

please tell me where I am wrong

Christopher Shaw · Answer

Good day.
Please post a question from the link provided in the challenge so we can see what is being asked and what has been taught. https://teamtreehouse.com/library/python-collections-2/sets/set-math
The challenge is asking to provide the names of the sets that intersect. Your iterating though the Courses is correct, you just need to find the intersection between the set provided and the courses set.
python
if(values & set1):
    list1.append(items)
`

Ignatius Matongo · Answer

def covers(set2):
    set1 = set()
    for key, value in COURSES.items():
        if value&set2 == set2:
            set1.update({key})
    return list(set1)

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Amar Bir Singh

Amar Bir Singh

Using sets

2 Answers

Christopher Shaw

Christopher Shaw

Amar Bir Singh

Amar Bir Singh

Ignatius Matongo

Ignatius Matongo