houses.py

## Filters out duplicate houses using 'set'

# students = [
#     {"name": "Hermione", "house": "Gryffindor"},
#     {"name": "Harry", "house": "Gryffindor"},
#     {"name": "Ron", "house": "Gryffindor"},
#     {"name": "Draco", "house": "Slytherin"},
#     {"name": "Padma", "house": "Ravenclaw"},
# ]


# houses = []
# for student in students:
#     if student["house"] not in houses:
#         houses.append(student["house"])

# for house in sorted(houses):
#     print(house)



## Using 'set'
students = [
    {"name": "Hermione", "house": "Gryffindor"},
    {"name": "Harry", "house": "Gryffindor"},
    {"name": "Ron", "house": "Gryffindor"},
    {"name": "Draco", "house": "Slytherin"},
    {"name": "Padma", "house": "Ravenclaw"},
]


houses = set()
for student in students:
    houses.add(student["house"])

for house in sorted(houses):
    print(house)