PYTHON setup.py build_ext --inplace

PYTHON -c "import runner"

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

from Cython.Build.Dependencies import cythonize

from distutils.core import setup

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

######## notheaptype.pyx ########

cdef class Base:

    pass

Obj = type(object())

cdef class Foo(Base, Obj):

    pass

######## wrongbase.pyx ########

cdef class Base:

    pass

Str = type("")

cdef class X(Base, Str):

    pass

######## badmro.pyx ########

class Py(object):

    pass

cdef class X(object, Py):

    pass

######## nodict.pyx ########

cdef class Base:

    pass

class Py(object):

    pass

cdef class X(Base, Py):

    pass

######## oldstyle.pyx ########

cdef class Base:

    cdef dict __dict__

class OldStyle:

    pass

cdef class Foo(Base, OldStyle):

    pass

######## runner.py ########

import sys

try:

    import notheaptype

    assert False

except TypeError as msg:

    assert str(msg) == "base class 'object' is not a heap type"

try:

    import wrongbase

    assert False

except TypeError as msg:

    assert str(msg) == "best base 'str' must be equal to first base 'wrongbase.Base'"

try:

    import badmro

    assert False

except TypeError as msg:

    assert str(msg).startswith("Cannot create a consistent method resolution")

try:

    import nodict

    assert False

except TypeError as msg:

    assert str(msg) == "extension type 'nodict.X' has no __dict__ slot, but base type 'Py' has: either add 'cdef dict __dict__' to the extension type or add '__slots__ = [...]' to the base type"

try:

    # This should work on Python 3 but fail on Python 2

    import oldstyle

    assert sys.version_info[0] >= 3

except TypeError as msg:

    assert str(msg) == "base class 'OldStyle' is an old-style class"