# This tests that recursion with iternext doesn't lead to segfault.
try:
x = (1, 2)
for i in range(1000):
x = enumerate(x)
tuple(x)
except RuntimeError:
print("RuntimeError")
try:
x = (1, 2)
for i in range(1000):
x = filter(None, x)
tuple(x)
except RuntimeError:
print("RuntimeError")
try:
x = (1, 2)
for i in range(1000):
x = map(max, x, ())
tuple(x)
except RuntimeError:
print("RuntimeError")
try:
x = (1, 2)
for i in range(1000):
x = zip(x)
tuple(x)
except RuntimeError:
print("RuntimeError")