PYTHON setup.py build_ext --inplace
PYTHON -c "import test_fail_in_init; test_fail_in_init.try_import()"
PYTHON -c "import test_fail_in_init_after_atexit; test_fail_in_init_after_atexit.try_import()"

######## setup.py ########

from Cython.Build.Dependencies import cythonize
from distutils.core import setup

setup(
    ext_modules = cythonize("fail_in_init*.pyx")
)

######## test_fail_in_init.py ########

import sys

def try_import():
    try:
        import fail_in_init
    except ValueError:
        pass
    else:
        raise RuntimeError("expected ValueError from import")

    if (3, 3) <= sys.version_info < (3, 5):
        assert 'fail_in_init' not in sys.modules
    elif 'fail_in_init' in sys.modules:
        try:
            sys.modules['fail_in_init'].fail()
        except AttributeError:
            pass  # this is "ok enough"
        except ValueError:
            pass  # this is what we had expected
        else:
            raise RuntimeError("expected ValueError from call through sys.modules")

######## fail_in_init.pyx ########

def fail():
    raise ValueError("kaputt")

fail()

######## test_fail_in_init_after_atexit.py ########

def try_import():
    try:
        import fail_in_init_after_atexit
    except ValueError:
        pass
    else:
        raise RuntimeError("expected ValueError from import")

######## fail_in_init_after_atexit.pyx ########

X = 5

def callback():
    try:
        print(X)
    except NameError:
        pass  # NameError is acceptable, a crash is not

import atexit
atexit.register(callback)

def fail():
    raise ValueError("holla!")

fail()