Merge pull request #119 from uktrade/ci/check-types

ci: run mypy type checking

.github/workflows/test.yml

@@ -40,6 +40,9 @@ jobs:
       - name: "Install python dependencies"
         run: |
           pip install ".[dev,ci]"
+      - name: "Run type checking"
+        run: |
+          mypy python test.py --disable-error-code import
       - name: "Run tests"
         run: |
           coverage run -m unittest -v

pyproject.toml

@@ -25,11 +25,13 @@ dependencies = [
 [project.optional-dependencies]
 dev = [
     "coverage>=6.2",
+    "mypy>=1.4.1",
     "pytest>=6.2.5",
     "pytest-cov>=3.0.0",
     "trio>=0.19.0",
 ]
 ci = [
+    "mypy==1.4.1",
     "pycryptodome==3.10.1",
     "stream-inflate==0.0.12",
 ]

python/stream_unzip/__init__.py

@@ -539,7 +539,7 @@ def to_sync_iterable(async_iterable):
         loop = None
 
     if loop is None:
-        import trio
+        import trio  # type: ignore [no-redef, assignment]
 
     unzipped_chunks = stream_unzip(
         zipfile_chunks=to_sync_iterable(chunks),