How come this is not passing?

Question

def covers(par):
    lst = []
    for k in COURSES.keys():
        if par.issubset(COURSES[k]):
            lst.append(k)
    return lst
```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(par):
    lst = []
    for k in COURSES.keys():
        if par.issubset(COURSES[k]):
            lst.append(k)
    return lst
```

Steven Parker · Answer

You're close, but a set is a subset of another only if all of its elements are in common with the other set, so that test is too specific for this particular task.
The challenge wants to see a list where the sets "overlap".  This means where the sets have any element(s) in common.

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sabrina watson

sabrina watson

How come this is not passing?

1 Answer

Steven Parker

Steven Parker