>> people{} #creates empty dictionary
>> add_person('Peter')
'Peter' is not in people, so we add it with value 1 >> people = {'Peter': 1}
>> add_person('Paul')
'Paul' is not in people, so we add it with value 1
people = {'Peter': 1, 'Paul': 1}
>> add_person('peter')
'peter' is not in people ('peter' is lowercase, which is NOT the same as 'Peter' in Python (case-sensitive)) So we add it with value 1
people = {'Peter': 1, 'Paul': 1, 'peter': 1}
print(len(people)) #output = 3 (3 keys: 'Peter', "Paul', 'peter)
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Donny_575
1 month, 1 week ago