Use typing module in exactly one place

.github/workflows/main.yml

@@ -21,13 +21,14 @@ jobs:
           - dependencies: yamllint
             task: make -f Makefile yamllint
           - dependencies: >
+              bandit
               pylint
               python3-dbus
               python3-dbus-signature-pyparsing
               python3-hypothesis
             task: >
-              PYTHONPATH=./src:/github/home/.local/lib/python3.12/site-packages
-              make -f Makefile lint
+              PATH=${PATH}:/github/home/.local/bin
+              PYTHONPATH=./src make -f Makefile lint
           - dependencies: >
               python3-dbus
               python3-dbus-signature-pyparsing
@@ -53,6 +54,8 @@ jobs:
           ${{ matrix.dependencies }}
       - name: Install hs-dbus-signature
         run: pip install --user hs-dbus-signature
+      - name: Install pyright
+        run: pip install --user pyright
       - name: ${{ matrix.task }}
         run: ${{ matrix.task }}
 
@@ -61,12 +64,15 @@ jobs:
       matrix:
         include:
           - dependencies: >
+              bandit
               pylint
               python3-dbus
               python3-dbus-signature-pyparsing
               python3-hypothesis
               python3-hs-dbus-signature
-            task: PYTHONPATH=./src make -f Makefile lint
+            task: >
+              PATH=${PATH}:/github/home/.local/bin
+              PYTHONPATH=./src make -f Makefile lint
           - dependencies: >
               python3-dbus
               python3-dbus-signature-pyparsing
@@ -90,6 +96,9 @@ jobs:
         run: >
           dnf install -y
           make
+          pip
           ${{ matrix.dependencies }}
+      - name: Install pyright
+        run: pip install --user pyright
       - name: ${{ matrix.task }}
         run: ${{ matrix.task }}

.github/workflows/weekly.yml

@@ -17,13 +17,14 @@ jobs:
           - dependencies: yamllint
             task: make -f Makefile yamllint
           - dependencies: >
+              bandit
               pylint
               python3-dbus
               python3-dbus-signature-pyparsing
               python-hypothesis
             task: >
-              PYTHONPATH=./src:/github/home/.local/lib/python3.12/site-packages
-              make -f Makefile lint
+              PATH=${PATH}:/github/home/.local/bin
+              PYTHONPATH=./src make -f Makefile lint
     runs-on: ubuntu-latest
     container: fedora:41  # NEXT DEVELOPMENT ENVIRONMENT
     steps:
@@ -36,5 +37,7 @@ jobs:
           ${{ matrix.dependencies }}
       - name: Install hs-dbus-signature
         run: pip install --user hs-dbus-signature
+      - name: Install pyright
+        run: pip install --user pyright
       - name: ${{ matrix.task }}
         run: ${{ matrix.task }}

Makefile

@@ -3,6 +3,13 @@ lint:
 	pylint setup.py
 	pylint src/into_dbus_python
 	pylint tests
+	bandit setup.py
+	# Ignore B101 errors. We do not distribute optimized code, i.e., .pyo
+	# files in Fedora, so we do not need to have concerns that assertions
+	# are removed by optimization.
+	bandit --recursive ./src --skip B101
+	bandit --recursive ./tests
+	pyright
 
 .PHONY: test
 test:

pyproject.toml

@@ -1,3 +1,6 @@
 [build-system]
 requires = ["setuptools"]
 build-backend = "setuptools.build_meta"
+
+[tool.pyright]
+include = ["src"]

src/into_dbus_python/_xformer.py

@@ -18,6 +18,7 @@
 # isort: STDLIB
 import functools
 from collections.abc import Sequence
+from typing import Any
 
 # isort: THIRDPARTY
 import dbus
@@ -148,7 +149,7 @@ def the_dict_func(a_dict, *, variant=0):
         if len(toks) == 2:
             (func, sig) = toks[1]
 
-            def the_array_func(a_list, *, variant=0):
+            def the_array_func(a_list: Sequence[Any], *, variant=0):
                 """
                 Function for generating an Array from a list.
 
@@ -188,7 +189,7 @@ def _handle_struct(toks):
         signature = "".join(s for (_, s) in subtrees)
         funcs = [f for (f, _) in subtrees]
 
-        def the_func(a_list, *, variant=0):
+        def the_func(a_list: Sequence[Any], *, variant=0):
             """
             Function for generating a Struct from a list.
 
@@ -290,9 +291,13 @@ def __init__(self):
 
         self.VARIANT.setParseAction(self._handle_variant)
 
-        self.ARRAY.setParseAction(_ToDbusXformer._handle_array)
+        self.ARRAY.setParseAction(  # pyright: ignore [ reportOptionalMemberAccess ]
+            _ToDbusXformer._handle_array
+        )
 
-        self.STRUCT.setParseAction(_ToDbusXformer._handle_struct)
+        self.STRUCT.setParseAction(  # pyright: ignore [ reportOptionalMemberAccess ]
+            _ToDbusXformer._handle_struct
+        )
 
 
 _XFORMER = _ToDbusXformer()