1 #!/usr/bin/env python 2 3 """ 4 Identity-related functions. 5 6 Copyright (C) 2015 Paul Boddie <paul@boddie.org.uk> 7 8 This program is free software; you can redistribute it and/or modify it under 9 the terms of the GNU General Public License as published by the Free Software 10 Foundation; either version 3 of the License, or (at your option) any later 11 version. 12 13 This program is distributed in the hope that it will be useful, but WITHOUT 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 15 FOR A PARTICULAR PURPOSE. See the GNU General Public License for more 16 details. 17 18 You should have received a copy of the GNU General Public License along with 19 this program. If not, see <http://www.gnu.org/licenses/>. 20 """ 21 22 from native import _isinstance 23 24 def callable(obj): pass 25 def help(*args): pass 26 def id(obj): pass 27 28 def isinstance(obj, cls_or_tuple): 29 30 """ 31 Return whether 'obj' is an instance of 'cls_or_tuple', where the latter is 32 either a class or a tuple of classes. 33 """ 34 35 # NOTE: CPython insists on tuples, but any sequence might be considered 36 # NOTE: acceptable. 37 38 if _isinstance(cls_or_tuple, tuple): 39 for cls in cls_or_tuple: 40 if obj.__class__ is cls or _isinstance(obj, cls): 41 return True 42 return False 43 else: 44 return obj.__class__ is cls_or_tuple or _isinstance(obj, cls_or_tuple) 45 46 def issubclass(obj, cls_or_tuple): pass 47 48 def repr(obj): pass 49 50 # vim: tabstop=4 expandtab shiftwidth=4
