Test failures with pytest 5.1

============================= test session starts ==============================
platform linux -- Python 3.7.4, pytest-5.1.0, py-1.8.0, pluggy-0.12.0
apipkg full install version=1.5
rootdir: /build/apipkg-1.5
collected 37 items

test_apipkg.py ...................F............F....                     [100%]

=================================== FAILURES ===================================
________________________ test_error_loading_one_element ________________________

monkeypatch = <_pytest.monkeypatch.MonkeyPatch object at 0x7ffff591be10>
tmpdir = local('/build/pytest-of-nixbld/pytest-0/test_error_loading_one_element0')

    def test_error_loading_one_element(monkeypatch, tmpdir):
        pkgdir = tmpdir.mkdir("errorloading1")
        pkgdir.join('__init__.py').write(py.code.Source("""
            import apipkg
            apipkg.initpkg(__name__, exportdefs={
                'x': '.notexists:x',
                'y': '.submod:y'
                },
            )
        """))
        pkgdir.join('submod.py').write("y=0")
        monkeypatch.syspath_prepend(tmpdir)
        import errorloading1
        assert isinstance(errorloading1, apipkg.ApiModule)
        assert errorloading1.y == 0
>       py.test.raises(ImportError, 'errorloading1.x')
E       TypeError: 'errorloading1.x' object (type: <class 'str'>) must be callable

test_apipkg.py:322: TypeError
________________________ test_aliasmodule_proxy_methods ________________________

tmpdir = local('/build/pytest-of-nixbld/pytest-0/test_aliasmodule_proxy_methods0')
monkeypatch = <_pytest.monkeypatch.MonkeyPatch object at 0x7ffff73e9cd0>

    def test_aliasmodule_proxy_methods(tmpdir, monkeypatch):
        pkgdir = tmpdir
        pkgdir.join('aliasmodule_proxy.py').write(py.code.Source("""
            def doit():
                return 42
        """))

        pkgdir.join('my_aliasmodule_proxy.py').write(py.code.Source("""
            import apipkg
            apipkg.initpkg(__name__, dict(proxy='aliasmodule_proxy'))

            def doit():
                return 42
        """))

        monkeypatch.syspath_prepend(tmpdir)
        import aliasmodule_proxy as orig
        from my_aliasmodule_proxy import proxy

        doit = proxy.doit
        assert doit is orig.doit

        del proxy.doit
>       py.test.raises(AttributeError, "orig.doit")
E       TypeError: 'orig.doit' object (type: <class 'str'>) must be callable

test_apipkg.py:496: TypeError
========================= 2 failed, 35 passed in 0.29s =========================
builder for '/nix/store/mfm3g4mjlc3lx1irxd8fdh67l87zmdw4-python3.7-apipkg-1.5.drv' failed with exit code 1
error: build of '/nix/store/mfm3g4mjlc3lx1irxd8fdh67l87zmdw4-python3.7-apipkg-1.5.drv' failed
pytest-dev / apipkg

Test failures with pytest 5.1 #17
