Upgrade requirements

[adamchainz]

No description provided.

[adamchainz]

Seeing this failure:

 ERROR at setup of SlowFixDatetimeColumnsTests.test_with_one_column_to_migrate _
request = <SubRequest '_django_setup_unittest' for <TestCaseFunction 'test_with_one_column_to_migrate'>>
django_db_blocker = <pytest_django.plugin._DatabaseBlocker object at 0x7f47fca02bd0>
    @pytest.fixture(autouse=True, scope='class')
    def _django_setup_unittest(request, django_db_blocker):
        """Setup a django unittest, internal to pytest-django."""
        if django_settings_is_configured() and is_django_unittest(request):
            getfixturevalue(request, 'django_test_environment')
            getfixturevalue(request, 'django_db_setup')
    
            django_db_blocker.unblock()
    
            cls = request.node.cls
    
            # implement missing (as of 1.10) debug() method for django's TestCase
            # see pytest-dev/pytest-django#406
            def _cleaning_debug(self):
                testMethod = getattr(self, self._testMethodName)
                skipped = (
                    getattr(self.__class__, "__unittest_skip__", False) or
                    getattr(testMethod, "__unittest_skip__", False))
    
                if not skipped:
                    self._pre_setup()
                super(cls, self).debug()
                if not skipped:
                    self._post_teardown()
    
            cls.debug = _cleaning_debug
    
            _restore_class_methods(cls)
>           cls.setUpClass()
E           TypeError: 'NoneType' object is not callable
.tox/py27-django18/local/lib/python2.7/site-packages/pytest_django/plugin.py:422: TypeError
 ERROR at setup of SlowFixDatetimeColumnsTests.test_with_two_columns_to_migrate 
item = <TestCaseFunction 'test_with_two_columns_to_migrate'>
    def pytest_runtest_setup(item):
        if django_settings_is_configured() and is_django_unittest(item):
            cls = item.cls
>           _disable_class_methods(cls)
.tox/py27-django18/local/lib/python2.7/site-packages/pytest_django/plugin.py:333: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
.tox/py27-django18/local/lib/python2.7/site-packages/pytest_django/plugin.py:298: in _disable_class_methods
    _classmethod_is_defined_at_leaf(cls, 'setUpClass'),
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
cls = <class 'tests.testapp.management.commands.test_fix_datetime_columns.SlowFixDatetimeColumnsTests'>
method_name = 'setUpClass'
    def _classmethod_is_defined_at_leaf(cls, method_name):
        super_method = None
    
        for base_cls in cls.__bases__:
            if hasattr(base_cls, method_name):
                super_method = getattr(base_cls, method_name)
    
        assert super_method is not None, (
            '%s could not be found in base class' % method_name)
    
        method = getattr(cls, method_name)
    
        try:
            f = method.__func__
        except AttributeError:
>           pytest.fail('%s.%s should be a classmethod' % (cls, method_name))
E           Failed: <class 'tests.testapp.management.commands.test_fix_datetime_columns.SlowFixDatetimeColumnsTests'>.setUpClass should be a classmethod

[adamchainz]

Awaiting pytest-dev/pytest-django#618