Frozenlist Hash Implementation

[xinhong3]

Why is sorted needed in 'freeze.py'?

Exception:

  File ".../distalgo-master/da/freeze.py", line 88, in __hash__
    h = self._cached_hash = hash(tuple(sorted(self)))
TypeError: '<' not supported between instances of 'SomeClass' and 'SomeClass'

class SomeClass:
    def __init__(self, val):
        self.val = val

class Primary(process):
    def setup(nBackups: int):
        pass

    def run():
        await(len(setof(p, received(("hello", _, _), from_= p))) >= nBackups)
        
        values = setof(
            v, received(("hello", v, _))
        )
        
        output(values)

class Backup(process):
    def setup(primary):
        pass

    def run():
        send(("hello", [SomeClass(1), SomeClass(2)], self), to = primary)

def main():
    nbackups = 3
    primary = new(Primary, (nbackups,), num= 1)
    backups = new(Backup, (primary,), num= nbackups)
    start(backups | primary)