# adapted from Tools/scripts/find_recursionlimit.py
import itertools
import io
import _pickle

#comdensed from def test_cpickle():
l = None
for n in itertools.count():
    try:
        raise KeyError
    except KeyError:
        for i in range(100):
            l = [l]
        print(n,i)
    _pickle.Pickler(io.BytesIO(), protocol=-1).dump(l)

##    for i in range(100):
##        l = [l]
##    print(n,i)
##    _pickle.Pickler(io.BytesIO(), protocol=-1).dump(l)