from decimal import Decimal
import time
class CachingDecimal(Decimal):
    def __hash__(self):
        try: return self.myHash;
        except:
            self.myHash = super().__hash__();
            return self.myHash;

d = dict();
start = time.time();
i = int(1);
j = int(2);
k = int(3);
for i in range(100000):
    d[i,j,k] = 5;
print(time.time() - start);

d = dict();
start = time.time();
i = Decimal(1);
j = Decimal(2);
k = Decimal(3);
for i in range(100000):
    d[i,j,k] = 5;
print(time.time() - start);

d = dict();
start = time.time();
i = CachingDecimal(1);
j = CachingDecimal(2);
k = CachingDecimal(3);
for i in range(100000):
    d[i,j,k] = 5;
print(time.time() - start);