Merge pull request #711 from pyvisa/typing-fixes

Typing and cis fixes

.github/dependabot.yml

@@ -0,0 +1,7 @@
+version: 2
+updates:
+  # Maintain dependencies for GitHub Actions
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"

.github/workflows/ci.yml

@@ -74,7 +74,7 @@ jobs:
           pip install pytest-cov
           python -X dev -m pytest --pyargs pyvisa --cov pyvisa --cov-report xml -v
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v1
+        uses: codecov/codecov-action@v3
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           flags: unittests

.pre-commit-config.yaml

@@ -4,15 +4,15 @@ repos:
     hooks:
       - id: isort
   - repo: https://github.com/psf/black
-    rev: 22.3.0
+    rev: 22.10.0
     hooks:
       - id: black
-  - repo: https://gitlab.com/pycqa/flake8
-    rev: 3.9.2
+  - repo: https://github.com/pycqa/flake8
+    rev: 6.0.0
     hooks:
       - id: flake8
   - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v0.950 # Use the sha / tag you want to point at
+    rev: v0.991 # Use the sha / tag you want to point at
     hooks:
       - id: mypy
         additional_dependencies: [numpy, typing_extensions]

pyvisa/rname.py

@@ -50,7 +50,7 @@ def __init__(self, msg: str) -> None:
 
     @classmethod
     def bad_syntax(
-        cls, syntax: str, resource_name: str, ex: Exception = None
+        cls, syntax: str, resource_name: str, ex: Optional[Exception] = None
     ) -> "InvalidResourceName":
         """Build an exception when the resource name cannot be parsed."""
         if ex:
@@ -64,7 +64,9 @@ def bad_syntax(
 
     @classmethod
     def subclass_notfound(
-        cls, interface_type_resource_class: Tuple[str, str], resource_name: str = None
+        cls,
+        interface_type_resource_class: Tuple[str, str],
+        resource_name: Optional[str] = None,
     ) -> "InvalidResourceName":
         """Build an exception when no parser has been registered for a pair."""
 
@@ -77,7 +79,7 @@ def subclass_notfound(
 
     @classmethod
     def rc_notfound(
-        cls, interface_type: str, resource_name: str = None
+        cls, interface_type: str, resource_name: Optional[str] = None
     ) -> "InvalidResourceName":
         """Build an exception when no resource class is provided and no default is found."""
 

pyvisa/util.py

@@ -448,7 +448,7 @@ def parse_ieee_block_header(
 def parse_hp_block_header(
     block: Union[bytes, bytearray],
     is_big_endian: bool,
-    length_before_block: int = None,
+    length_before_block: Optional[int] = None,
     raise_on_late_block: bool = False,
 ) -> Tuple[int, int]:
     """Parse the header of a HP block.