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from test_support import TestFailed
class base_set:
def __init__(self, el):
self.el = el
class set(base_set):
def __contains__(self, el):
return self.el == el
class seq(base_set):
def __getitem__(self, n):
return [self.el][n]
def check(ok, *args):
if not ok:
raise TestFailed, join(map(str, args), " ")
a = base_set(1)
b = set(1)
c = seq(1)
check(1 in b, "1 not in set(1)")
check(0 not in b, "0 in set(1)")
check(1 in c, "1 not in seq(1)")
check(0 not in c, "0 in seq(1)")
try:
1 in a
check(0, "in base_set did not raise error")
except AttributeError:
pass
try:
1 not in a
check(0, "not in base_set did not raise error")
except AttributeError:
pass
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