[issue3976] pprint._safe_repr is not general enough in one instance
Armin Ronacher
report at bugs.python.org
Sun Sep 20 19:39:51 CEST 2009
Armin Ronacher <armin.ronacher at active-4.com> added the comment:
Eg, something like this:
class safe_key(object):
__slots__ = ('obj',)
def __init__(self, obj):
self.obj = obj
def __eq__(self, other):
return self.obj.__eq__(other.obj)
def __lt__(self, other):
rv = self.obj.__lt__(other.obj)
if rv is NotImplemented:
rv = id(type(self.obj)) < id(type(other.obj))
return rv
ls = [2, 1, 1.0, 1.5, 'a', 'c', 'b']
print(sorted(ls, key=safe_key))
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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue3976>
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