There is definitely a bug.
Maybe the follownig snippet is more clear:
class OBJ:
def __init__(self,identifier):
self.id=identifier
self.allocated=0
#def __cmp__(self,other):
# return cmp(other.allocated,self.allocated)
mylist=[OBJ(i) for i in range(10)]
excluded=[obj for obj in mylist if obj.id in [2,4,6,8]]
exclusion_list_by_id=[2,4,6,8]
print 'exclusion list by id=',exclusion_list_by_id
for obj in mylist:
print 'current obj=',obj.id,
if obj in excluded:
print ' ---> THIS OBJECT IS EXCLUDED'
assert obj.id in exclusion_list_by_id
continue
print
If you uncomment the two lines, the assert will be erroneously
triggered.
Alain
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