source: geniuswebcore/geniusweb/actions/PartyId.py

import re
from pyson.JsonValue import JsonValue

class PartyId:
        '''
        Unique ID of a party in a negotiation. The name should start with a short
        string indicating the party (eg, the party name plus some machine
        identifier), optionally followed by an "_", and more characters to make the
        partyid unique. We require the name and "-" so that the string up to the
        first "-" can be used to determine between sessions which opponents are
        instances of the same class.
        <h2>Note</h2> Normally, negotiation parties should not create new Party IDs
        as all needed IDs should be provided by the protocol.
        '''
        

        def __init__(self,name:str):
                '''
                 @param name a simple name, starting with letter, followed by zero or more
                             letters, digits or _.

                '''
                if name == None or not re.fullmatch("[a-zA-Z]\\w*", name):
                        raise ValueError("name '" + name
                                        + "' is not a letter followed by zero or more word characters (letter, digit or _)");
                self._name = name;

        @JsonValue()
        def getName(self) -> str:
                return self._name

        def __repr__(self):
                return self._name

        
        def __eq__(self, other):
                return super().__eq__(other) and isinstance(other, self.__class__) and \
                        self._name==other._name

        def __hash__(self):
                '''
                support for using this in dict etc
                '''
                return hash(self._name)