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Python

Josh Bennett
Josh Bennett
15,258 Points

Why is the variable not defined? Looks defined to me.

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(topics):
    aList = []
    for x in COURSES:
        if COURSES[x] & topics:
            alist.append(x)
    return aList

2 Answers

Hi Josh

Your list is called aList, but your appending to a list called alist ? alist is obviously not defined. Also not sure whats if COURSES[x] & topics: is doing.

I did the same thing in a slightly different way.

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(topics):
    aList = []
    for key,val in COURSES.items():
        if key == topics:
            aList.append(val)
    return aList
Josh Bennett
Josh Bennett
15,258 Points

Son of a.... Well thats what I get for coding before 5 am. Lesson learned. :-)

son of a, I do that all the time haha