Support Python 3.8, update dependencies

Author: Cito

.travis.yml

@@ -6,6 +6,11 @@ matrix:
       python: 3.7
       dist: xenial
       sudo: true
+    - name: Unit tests with Python 3.8
+      env: TOXENV=py38
+      python: 3.8
+      dist: xenial
+      sudo: true
     - name: Unit tests with Python 3.7
       env: TOXENV=py37
       python: 3.7
@@ -19,7 +24,7 @@ cache:
     - "$HOME/.cache/pip"
     - "$TRAVIS_BUILD_DIR/.tox"
 install:
-  - pip install "poetry>=1.0.0b1"
+  - pip install "poetry>=1.0.0b7"
   - poetry install
 script:
   - tox -e $TOXENV -- --cov-report term-missing --cov=graphql

mypy.ini

@@ -1,5 +1,5 @@
 [mypy]
-python_version = 3.7
+python_version = 3.8
 check_untyped_defs = True
 warn_redundant_casts = True
 warn_unused_ignores = True

poetry.lock

@@ -19,7 +19,8 @@ classifiers = [
     "License :: OSI Approved :: MIT License",
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3.6",
-    "Programming Language :: Python :: 3.7"
+    "Programming Language :: Python :: 3.7",
+    "Programming Language :: Python :: 3.8"
 ]
 packages = [
     { include = "graphql", from = "src" },
@@ -34,22 +35,23 @@ python = "^3.6"
 pytest = "^5"
 pytest-asyncio = ">=0.10"
 pytest-benchmark = "^3.2"
-pytest-cov = "^2.7"
+pytest-cov = "^2.8"
 pytest-describe = ">=0.12"
 pyyaml = "^5.1"
-black = ">=19.3b0"
+black = ">=19.10b0"
 flake8 = "^3.7"
-mypy = ">=0.720"
+mypy = ">=0.720,<0.730"
 codecov = "^2"
 sphinx = "^2.2"
 sphinx_rtd_theme = ">=0.4"
-check-manifest = ">=0.39"
+check-manifest = ">=0.40"
 bump2version = ">=0.5"
 tox = "^3.14"
 
 [tool.black]
 target-version = ['py36', 'py37', 'py38']
+
 [build-system]
-requires = ["poetry>=1.0.0b1"]
+requires = ["poetry>=1.0.0b7"]
 build-backend = "poetry.masonry.api"
 

pyproject.toml

@@ -195,7 +195,7 @@ def build_enum_def(enum_introspection: Dict) -> GraphQLEnumType:
         )
 
     def build_input_object_def(
-        input_object_introspection: Dict
+        input_object_introspection: Dict,
     ) -> GraphQLInputObjectType:
         if input_object_introspection.get("inputFields") is None:
             raise TypeError(
@@ -279,7 +279,7 @@ def build_input_value(input_value_introspection: Dict) -> GraphQLInputField:
         )
 
     def build_input_value_def_map(
-        input_value_introspections: Dict
+        input_value_introspections: Dict,
     ) -> Dict[str, GraphQLInputField]:
         return {
             input_value_introspection["name"]: build_input_value(

src/graphql/utilities/build_client_schema.py

@@ -177,7 +177,7 @@ def extend_directive(directive: GraphQLDirective) -> GraphQLDirective:
         )
 
     def extend_input_object_type(
-        type_: GraphQLInputObjectType
+        type_: GraphQLInputObjectType,
     ) -> GraphQLInputObjectType:
         kwargs = type_.to_kwargs()
         extensions = type_exts_map.get(kwargs["name"], [])

src/graphql/utilities/extend_schema.py

@@ -55,7 +55,7 @@
 
 
 def with_modifiers(
-    types: List[GraphQLNamedType]
+    types: List[GraphQLNamedType],
 ) -> List[Union[GraphQLNamedType, GraphQLNonNull, GraphQLList]]:
     return (
         cast(List[Union[GraphQLNamedType, GraphQLNonNull, GraphQLList]], types)

tests/type/test_validation.py

@@ -413,7 +413,7 @@ def expect_stripped_string(block_str: str):
 
     # noinspection PyShadowingNames
     def strips_kitchen_sink_query_but_maintains_the_exact_same_ast(
-        kitchen_sink_query  # noqa: F811
+        kitchen_sink_query,  # noqa: F811
     ):
         stripped_query = strip_ignored_characters(kitchen_sink_query)
         assert strip_ignored_characters(stripped_query) == stripped_query
@@ -424,7 +424,7 @@ def strips_kitchen_sink_query_but_maintains_the_exact_same_ast(
 
     # noinspection PyShadowingNames
     def strips_kitchen_sink_sdl_but_maintains_the_exact_same_ast(
-        kitchen_sink_sdl  # noqa: F811
+        kitchen_sink_sdl,  # noqa: F811
     ):
         stripped_sdl = strip_ignored_characters(kitchen_sink_sdl)
         assert strip_ignored_characters(stripped_sdl) == stripped_sdl

tests/utilities/test_strip_ignored_characters.py

@@ -1,9 +1,9 @@
 [tox]
-envlist = py{36,37}, black, flake8, mypy, docs, manifest
+envlist = py{36,37,38}, black, flake8, mypy, docs, manifest
 
 [testenv:black]
 basepython = python3.7
-deps = black>=19.3b0
+deps = black>=19.10b0
 commands  =
     black src tests setup.py --check
 
@@ -15,7 +15,7 @@ commands =
 
 [testenv:mypy]
 basepython = python3.7
-deps = mypy>=0.720
+deps = mypy>=0.720,<0.730
 commands =
     mypy src tests
 
@@ -29,7 +29,7 @@ commands =
 
 [testenv:manifest]
 basepython = python3.7
-deps = check-manifest>=0.39
+deps = check-manifest>=0.40
 commands =
     check-manifest -v
 
@@ -40,7 +40,7 @@ deps =
     pytest>=5.0,<6
     pytest-asyncio>=0.10
     pytest-benchmark>=3.2,<4
-    pytest-cov>=2.7,<3
+    pytest-cov>=2.8,<3
     pytest-describe>=0.12
 commands =
     pytest tests {posargs}