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from _testinternalcapi import get_recursion_depth
class MyException(Exception): pass
def setrecursionlimit(depth):
while 1:
try:
sys.setrecursionlimit(depth)
return depth
except RecursionError:
# sys.setrecursionlimit() raises a RecursionError if
# the new recursion limit is too low (issue #25274).
depth += 1
def recurse(cnt):
cnt -= 1
if cnt:
recurse(cnt)
else:
generator.throw(MyException)
def gen():
f = open(%a, mode='rb', buffering=0)
yield
generator = gen()
next(generator)
recursionlimit = sys.getrecursionlimit()
depth = get_recursion_depth()
try:
# Upon the last recursive invocation of recurse(),
# tstate->recursion_depth is equal to (recursion_limit - 1)
# and is equal to recursion_limit when _gen_throw() calls
# PyErr_NormalizeException().
recurse(setrecursionlimit(depth + 2) - depth)
finally:
sys.setrecursionlimit(recursionlimit)
print('Done.')
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try:
raise _testcapi.RecursingInfinitelyError
finally:
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class C(): pass
def recurse(cnt):
cnt -= 1
if cnt:
recurse(cnt)
else:
_testcapi.set_nomemory(0)
C()
recurse(16)
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C()
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