Georg Brandl <[email protected]> added the comment:
OK, there *is* a way. Consider 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):
try:
return self.obj < other.obj
except TypeError:
return id(type(self.obj)) < id(type(other.obj))
ls = [2, 1, 1.0, 1.5, 'a', 'c', 'b']
print(sorted(ls, key=safe_key))
----------
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Python tracker <[email protected]>
<http://bugs.python.org/issue3976>
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