'Resolve a calendar alias for retrieval.
Parameters
name : str
The name of the requested calendar.
Returns
canonical_name : str
The real name of the calendar to create/return.'

def resolve_alias(self, name):

    seen = []
    while (name in self._aliases):
        seen.append(name)
        name = self._aliases[name]
        if (name in seen):
            seen.append(name)
            raise CyclicCalendarAlias(cycle='    ->    '.join((repr(k) for k in seen)))
    return name
