Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

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

Posted by emil sanchez
emil sanchez
3,089 Points

need some help... i seem to get the right output... but i am getting the "bummer" message...

where am i going worng.. ts seems to be giving the correct output

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"}
}

set_entry = {"strings", "input"}

def covers(set_0):
    result1 = []
    for key in COURSES:
        if set_0 <= COURSES[key]:
            result = key
            result1.append(result)
    return result1

result2 = covers(set_entry)
print(result2)
awake
awake
6,126 Points
  1. You only need to write the function. You do not need to call it so you can remove set_entry, result2 and your print statement.
  2. You can just use:
if set_0.intersection(COURSES[key]):

1 Answer

emil sanchez
emil sanchez
3,089 Points
emil sanchez
emil sanchez
3,089 Points

thanks :)