Use python3.9 and add better linter setup

.flake8

@@ -1,7 +1,15 @@
 [flake8]
-application-import-names = platform_mcs
+application-import-names = unsupported_pcidevs
 import-order-style = smarkets
 inline-quotes = double
 max-complexity = 15
 multiline-quotes = double
-ignore=I101, P101
+ignore=
+    A003, A003 "set" is a python builtin, consider renaming the class attribute
+    I101,
+    P101,
+    D100,D101,D102 # Missing doctrings in a public module
+    D104, # Missing docstring in public package
+    D401, # First line should be in imperative mood; try rephrasing
+    D202, # No blank lines allowed after function docstring (conflicts with black)
+    D107, D103, # Missing docstring in ... (conflicts with interrogate)

.gitlab-ci.yml

@@ -22,26 +22,30 @@ lint:
   script:
     - pre-commit run -av
 
-test-python-3.6:
+.test-python-version: &test-python-version
   stage: test
-  variables:
-    PY_VERSION: "3.6"
   script:
     - docker-compose run tests
 
+test-python-3.6:
+  <<: *test-python-version
+  variables:
+    PY_VERSION: "3.6"
+
 test-python-3.7:
-  stage: test
+  <<: *test-python-version
   variables:
     PY_VERSION: "3.7"
-  script:
-    - docker-compose run tests
 
 test-python-3.8:
-  stage: test
+  <<: *test-python-version
   variables:
     PY_VERSION: "3.8"
-  script:
-    - docker-compose run tests
+
+test-python-3.9:
+  <<: *test-python-version
+  variables:
+    PY_VERSION: "3.9"
 
 deploy:pypi:
   stage: deploy

.pre-commit-config.yaml

@@ -1,64 +1,84 @@
 minimum_pre_commit_version: "2.3.0"
 repos:
   - repo: "https://github.com/psf/black"
-    rev: "19.10b0"
+    rev: "20.8b1"
     hooks:
       - id: "black"
         name: "Format code (black)"
-        language_version: "python3.8"
+        language_version: "python3"
         exclude: ^docs/.*$
 
   - repo: "https://github.com/asottile/blacken-docs"
-    rev: "v1.7.0"
+    rev: "v1.8.0"
     hooks:
       - id: "blacken-docs"
         name: "Format docs (blacken-docs)"
-        language_version: "python3.8"
+        language_version: "python3"
         args: ["-l", "64"]
         additional_dependencies:
-          - "black==19.10b0"
+          - "black==20.8b1"
 
-  - repo: https://github.com/timothycrosley/isort
-    rev: 5.1.4
+  - repo: "https://github.com/timothycrosley/isort"
+    rev: 5.6.4
     hooks:
       - id: isort
+        language_version: "python3"
         additional_dependencies: [toml]
 
   - repo: "https://github.com/pre-commit/pre-commit-hooks"
-    rev: "v3.1.0"
+    rev: "v3.2.0"
     hooks:
       - id: "end-of-file-fixer"
       - id: "trailing-whitespace"
       - id: "check-json"
       - id: "check-toml"
       - id: "check-yaml"
+      - id: "check-merge-conflict"
+
+  - repo: https://github.com/jorisroovers/gitlint
+    rev: v0.13.1
+    hooks:
+      - id: gitlint
+
+  - repo: https://github.com/PyCQA/bandit
+    rev: "1.6.2"
+    hooks:
+      - id: bandit
+        language_version: "python3"
+        exclude: ^tests/.*$
+
+  - repo: https://github.com/econchick/interrogate
+    rev: 1.3.1  # or master if you're bold
+    hooks:
+      - id: interrogate
+        language_version: "python3"
+        args: [tests]
 
   - repo: "https://gitlab.com/PyCQA/flake8"
-    rev: 3.8.3
+    rev: 3.8.4
     hooks:
       - id: "flake8"
         name: "Lint code (flake8)"
-        language_version: "python3.8"
+        language_version: "python3"
         additional_dependencies:
           - "flake8==3.7.9"
           - "flake8-broken-line==0.2.0"
           - "flake8-bugbear==20.1.4"
           - "flake8-builtins==1.5.2"
           - "flake8-comprehensions==3.2.2"
           - "flake8-eradicate==0.3.0"
-#          - "flake8-import-order==0.18.1"
           - "flake8-mutable==1.2.0"
           - "flake8-pie==0.5.0"
           - "flake8-quotes==3.0.0"
           - "flake8-string-format==0.3.0"
           - "flake8-tidy-imports==4.1.0"
+          - "flake8-docstrings==1.5.0"
           - "pep8-naming==0.10.0"
-        exclude: ^docs/.*$
 
   - repo: "https://github.com/pre-commit/mirrors-mypy"
-    rev: "v0.782"
+    rev: "v0.790"
     hooks:
       - id: "mypy"
         name: "Lint code (mypy)"
-        language_version: "python3.8"
-        exclude: ^docs/.*$
+        language_version: "python3"
+        exclude: ^tests/.*$

CHANGELOG.md

@@ -1,4 +1,7 @@
-# 2.1.0 (20 Jul 2020)
+# 2.2.0 (13 Oct 2020)
+## Features
+- Supports python 3.9
+- Monthly maintenance update
 
 ## Fixes
 - using sha256 from hashlib see

aiohttp_cache/__init__.py

@@ -3,6 +3,7 @@
 from .middleware import cache_middleware
 from .setup import setup_cache
 
+
 __all__ = (
     "AvailableKeys",
     "MemoryCache",