Add support for Python 3.5 in Docker 5.0 image

Author: humitos

readthedocs/config/tests/test_config.py

@@ -953,8 +953,8 @@ def test_python_check_invalid_types(self, value):
     @pytest.mark.parametrize(
         'image,versions',
         [
-            ('latest', [2, 2.7, 3, 3.6, 3.7, 'pypy3.5']),
-            ('stable', [2, 2.7, 3, 3.6, 3.7]),
+            ('latest', [2, 2.7, 3, 3.5, 3.6, 3.7, 'pypy3.5']),
+            ('stable', [2, 2.7, 3, 3.5, 3.6, 3.7]),
         ],
     )
     def test_python_version(self, image, versions):

readthedocs/rtd_tests/tests/test_config_integration.py

@@ -144,7 +144,7 @@ def test_python_supported_versions_image_latest(self, load_config):
         config = load_yaml_config(self.version)
         self.assertEqual(
             config.get_valid_python_versions(),
-            [2, 2.7, 3, 3.6, 3.7, 'pypy3.5'],
+            [2, 2.7, 3, 3.5, 3.6, 3.7, 'pypy3.5'],
         )
 
     @mock.patch('readthedocs.doc_builder.config.load_config')

readthedocs/settings/base.py

@@ -330,7 +330,7 @@ def USE_PROMOS(self):  # noqa
             'python': {'supported_versions': [2, 2.7, 3, 3.5, 3.6, 3.7]},
         },
         'readthedocs/build:5.0': {
-            'python': {'supported_versions': [2, 2.7, 3, 3.6, 3.7, 'pypy3.5']},
+            'python': {'supported_versions': [2, 2.7, 3, 3.5, 3.6, 3.7, 'pypy3.5']},
         },
     }