ppperry added the comment:
Does this work with wacky code like this?
@functools.total_ordering
class ClassAssignmentCanBreakChecks():
def __init__(self, i):
self._i = i
def __lt__ (self, other):
last.__class__ = OrdinaryOldInteger
return self._i < (other._i if hasattr(other, '_i') else
other)
@functools.total_ordering
class OrdinaryOldInteger:
def __init__(self, i):
self._i = i
def __lt__(self, other):
return self._i < (other._i if hasattr(other, '_i') else
other)
lst = [ClassAssignmentCanBreakChecks(i) for i in range(10)]
random.shuffle(lst)
last = lst[-1]
lst.sort()
It looks like it will initially say that all are the same type, and attempt
that optimization, which will probably lead to unexpected results as that
condition is no longer true after the first compare.
----------
nosy: +ppperry
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<http://bugs.python.org/issue28685>
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