Tidy mypy and tox config

.travis.yml

@@ -10,21 +10,28 @@ matrix:
   fast_finish: true
 
   include:
+    - python: &latest_py3 3.8
+    - python: 3.7
+    - python: &oldest_py3 3.6
+
     - python: 3.7
       name: Linting code style
       env:
         TOXENV: code-style
-    - python: 3.7
-      name: Linting type annotations
+
+    - python: *latest_py3
+      name: Checking type annotations (latest Python)
       env:
         TOXENV: typing
+    - python: *oldest_py3
+      name: Checking type annotations (oldest Python)
+      env:
+        TOXENV: typing
+
     - python: 3.7
       name: Making sure that docs build is healthy
       env:
         TOXENV: docs
-    - python: &latest_py3 3.8
-    - python: 3.7
-    - python: 3.6
 
     - stage: deploy
       if: tag IS present

mypy.ini

@@ -1,8 +1,5 @@
 [mypy]
 show_traceback = True
-; TODO: Make this more granular; docs recommend it as a "last resort"
-; https://mypy.readthedocs.io/en/latest/running_mypy.html#missing-type-hints-for-third-party-library
-ignore_missing_imports = True
 
 ; --strict settings
 warn_redundant_casts = True
@@ -20,3 +17,35 @@ no_implicit_optional = True
 warn_return_any = True
 no_implicit_reexport = True
 strict_equality = True
+
+[mypy-importlib_metadata]
+; https://gitlab.com/python-devs/importlib_metadata/-/issues/10
+ignore_missing_imports = True
+
+[mypy-keyring]
+; https://github.com/jaraco/keyring/issues/437
+ignore_missing_imports = True
+
+[mypy-pkginfo]
+; https://bugs.launchpad.net/pkginfo/+bug/1876591
+ignore_missing_imports = True
+
+[mypy-requests_toolbelt,requests_toolbelt.*]
+; https://github.com/requests/toolbelt/issues/279
+ignore_missing_imports = True
+
+[mypy-readme_renderer,readme_renderer.*]
+; https://github.com/pypa/readme_renderer/issues/166
+ignore_missing_imports = True
+
+[mypy-setuptools]
+; https://github.com/python/typeshed/issues/2171
+ignore_missing_imports = True
+
+[mypy-tqdm]
+; https://github.com/tqdm/tqdm/issues/260
+ignore_missing_imports = True
+
+[mypy-urllib3]
+; https://github.com/urllib3/urllib3/issues/867
+ignore_missing_imports = True

tox.ini

@@ -27,6 +27,7 @@ commands =
     twine check dist/*
 
 [testenv:format]
+skip_install = True
 deps =
     isort
     black
@@ -35,6 +36,7 @@ commands =
     black twine/ tests/
 
 [testenv:code-style]
+skip_install = True
 deps =
     {[testenv:format]deps}
     flake8
@@ -44,22 +46,16 @@ commands =
     flake8 twine/ tests/
 
 [testenv:typing]
+skip_install = True
 deps =
     mypy
     lxml
 commands =
     # TODO: Consider checking the tests after the source is fully typed
     mypy {posargs:--html-report mypy --txt-report mypy twine}
 
-[testenv:monkeytype]
-deps = 
-    {[testenv]deps}
-    {[testenv:typing]deps}
-    monkeytype
-commands = 
-    monkeytype {posargs:run -m pytest}
-
 [testenv:lint]
+skip_install = True
 deps =
     {[testenv:code-style]deps}
     {[testenv:typing]deps}