PYTHON setup.py build_ext --inplace
PYTHON -c "import my_test_package as p; assert not p.__file__.rstrip('co').endswith('.py'), p.__file__; p.test()"
PYTHON -c "import my_test_package.a as a; a.test()"
PYTHON -c "import my_test_package.another as p; assert not p.__file__.rstrip('co').endswith('.py'), p.__file__; p.test()"
PYTHON -c "import my_test_package.another.a as a; a.test()"

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

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

setup(
    ext_modules = cythonize(["my_test_package/**/*.py"]),
)

######## my_test_package/__init__.py ########

# cython: set_initial_path=SOURCEFILE

initial_path = __path__
initial_file = __file__

try:
    from . import a
    import_error = None
except ImportError as e:
    import_error = e
    import traceback
    traceback.print_exc()

def test():
    print("FILE: ", initial_file)
    print("PATH: ", initial_path)
    assert initial_path[0].endswith('my_test_package'), initial_path
    assert initial_file.endswith('__init__.py'), initial_file
    assert import_error is None, import_error

######## my_test_package/another/__init__.py ########

# cython: set_initial_path=SOURCEFILE

initial_path = __path__
initial_file = __file__

try:
    from . import a
    import_error = None
except ImportError as e:
    import_error = e
    import traceback
    traceback.print_exc()

def test():
    print("FILE: ", initial_file)
    print("PATH: ", initial_path)
    assert initial_path[0].endswith('another'), initial_path
    assert initial_file.endswith('__init__.py'), initial_file
    assert import_error is None, import_error

######## my_test_package/a.py ########

# cython: set_initial_path=SOURCEFILE

initial_file = __file__

try:
    initial_path = __path__
except NameError:
    got_name_error = True
else:
    got_name_error = False

def test():
    assert initial_file.endswith('a.py'), initial_file
    assert got_name_error, "looks like __path__ was set at module init time: " + initial_path

######## my_test_package/another/a.py ########

# cython: set_initial_path=SOURCEFILE

initial_file = __file__

try:
    initial_path = __path__
except NameError:
    got_name_error = True
else:
    got_name_error = False

def test():
    assert initial_file.endswith('a.py'), initial_file
    assert got_name_error, "looks like __path__ was set at module init time: " + initial_path