Python make an object hashable

class Hero:
    def __init__(self, name, age):
        self.name = name
        self.age = age

    def __str__(self):
        return self.name + str(self.age)

    def __hash__(self):
        print(hash(str(self)))
        return hash(str(self))

    def __eq__(self,other):
        return self.name == other.name and self.age== other.age



heroes = set()
heroes.add(Hero('Zina Portnova', 16)) # gets hash -8926039986155829407
print(len(heroes)) # gets 1

heroes.add(Hero('Lara Miheenko', 17)) # gets hash -2822451113328084695
print(len(heroes)) # gets 2

heroes.add(Hero('Zina Portnova', 16)) # gets hash -8926039986155829407
print(len(heroes)) # gets 2

Source: stackoverflow.com

Similar codes

0 vote133 views4 answers
Pip django graphql
Python Django
10 votes114 views1 answer
Main function python\
Python
0 vote106 views1 answer
Enumerate in range python
Python
4 votes82 views2 answers
Os.walk python
Python
0 vote109 views1 answer
Python proxy scraper
Python
2 votes94 views1 answer
Fromkeys in python
Python
1 vote129 views1 answer
How to count post by category django
Python Django
0 vote136 views2 answers
Django get all models
Python Django
3 votes101 views4 answers
Drop na dataframe
Python
2 votes100 views1 answer
Printing with format float to 2 decimal places python
Python