Question: 
Write a function to sort counter by value.


Model's Code:
def sort_counter(counter):
    return sorted(counter.items(), key=lambda item: item[1], reverse=True)



Sample Correct Code:
from collections import Counter
def sort_counter(dict1):
 x = Counter(dict1)
 sort_counter=x.most_common()
 return sort_counter


Asserts:
assert sort_counter({'Math':81, 'Physics':83, 'Chemistry':87})==[('Chemistry', 87), ('Physics', 83), ('Math', 81)]
assert sort_counter({'Math':400, 'Physics':300, 'Chemistry':250})==[('Math', 400), ('Physics', 300), ('Chemistry', 250)]
assert sort_counter({'Math':900, 'Physics':1000, 'Chemistry':1250})==[('Chemistry', 1250), ('Physics', 1000), ('Math', 900)]


Tests:
Test 1 of 3: PASS
Test 2 of 3: PASS
Test 3 of 3: PASS

Test 475 of 974: 349/475 (73.47368421052632%): success