Bump various test dependencies (#349)

Enable some new lints from flake8-bugbear and mypy

.flake8

@@ -18,18 +18,16 @@
 #       E704 multiple statements on one line (def) -- disallows function body on the same line as the def
 #
 # flake8-bugbear rules that cause too many false positives:
-#       B028 "Use !r inside f-strings instead of manual quotes" --
-#           produces false positives if you're surrounding things with double quotes
 #       B905 "`zip()` without an explicit `strict=True` parameter --
 #           the `strict` parameter was introduced in Python 3.10; we support Python 3.7
-#       B906 "`visit_` function with no further calls to a visit function" --
-#           there's no reason to call generic_visit(node) inside visit_Name, visit_Str, etc.
+#       B907 "Use !r inside f-strings instead of manual quotes" --
+#           produces false positives if you're surrounding things with double quotes
 
 [flake8]
 max-line-length = 80
 max-complexity = 12
 noqa-require-code = true
 select = B,C,E,F,W,Y,B9,NQA
 per-file-ignores =
-  *.py: B028, B905, B906, B950, E203, E501, W503, W291, W293
+  *.py: B905, B907, B950, E203, E501, W503, W291, W293
   *.pyi: B, E301, E302, E305, E501, E701, E704, W503

.pre-commit-config.yaml

@@ -9,7 +9,7 @@ repos:
       - id: check-merge-conflict
       - id: mixed-line-ending
   - repo: https://github.com/psf/black
-    rev: 22.12.0 # must match pyproject.toml
+    rev: 23.1.0 # must match pyproject.toml
     hooks:
       - id: black
         language_version: python3.7

pyi.py

@@ -999,15 +999,15 @@ def visit_Assign(self, node: ast.Assign) -> None:
             self.generic_visit(node)
             return
         if len(node.targets) == 1:
-            target = node.targets[0]
+            target: ast.expr | None = node.targets[0]
             if isinstance(target, ast.Name):
                 target_name = target.id
             else:
                 self.error(node, Y017)
                 target_name = None
         else:
             self.error(node, Y017)
-            target_name = None
+            target = target_name = None
         is_special_assignment = _is_assignment_which_must_have_a_value(
             target_name, in_class=self.in_class.active
         )
@@ -1085,6 +1085,7 @@ def _check_for_type_aliases(
             self.error(node, Y026.format(suggestion=unparse(new_node)))
 
     def visit_Name(self, node: ast.Name) -> None:
+        self.generic_visit(node)
         self.all_name_occurrences[node.id] += 1
 
     def visit_Call(self, node: ast.Call) -> None:

pyproject.toml

@@ -60,11 +60,11 @@ dependencies = [
 
 [project.optional-dependencies]
 dev = [
-    "black==22.12.0",                         # Must match .pre-commit-config.yaml
-    "flake8-bugbear==23.1.14",
+    "black==23.1.0",                          # Must match .pre-commit-config.yaml
+    "flake8-bugbear==23.2.13",
     "flake8-noqa==1.3.0",
     "isort==5.12.0; python_version >= '3.8'", # Must match .pre-commit-config.yaml
-    "mypy==1.0",
+    "mypy==1.0.1",
     "pre-commit-hooks==4.4.0",                # Must match .pre-commit-config.yaml
     "pytest==7.2.1",
     "types-pyflakes<4",
@@ -92,7 +92,7 @@ files = ["pyi.py", "tests/test_pyi_files.py"]
 show_traceback = true
 pretty = true
 strict = true
-enable_error_code = "ignore-without-code,redundant-expr"
+enable_error_code = "ignore-without-code,redundant-expr,possibly-undefined"
 warn_unreachable = true
 allow_subclassing_any = true
 allow_untyped_defs = true