Fix type hings

Author: mattkram

src/pyscript/_node_parser.py

@@ -8,6 +8,7 @@
 from collections import defaultdict
 from itertools import chain, filterfalse
 from pathlib import Path
+from typing import DefaultDict
 
 from ._supported_packages import PACKAGE_RENAMES, PYODIDE_PACKAGES, STANDARD_LIBRARY
 
@@ -65,9 +66,9 @@ def __repr__(self) -> str:
 
 class FinderResult:
     def __init__(self) -> None:
-        self._packages = set()
-        self._locals = set()
-        self._unsupported = defaultdict(set)
+        self._packages: set[str] = set()
+        self._locals: set[str] = set()
+        self._unsupported: DefaultDict[str, set] = defaultdict(set)
 
     def add_package(self, pkg_name: str) -> None:
         self._packages.add(pkg_name)

tests/test_cli.py

@@ -25,9 +25,9 @@ class Dependency:
     This class is a general abstraction over both external and local module dependency."""
 
     import_line: str  # Import line to inject in code under test
-    filename: str = None  # filename: to be used for tmp local modules, i.e. paths
-    code: str = None  # code in the tmp local modules
-    inject: str = None  # any code to inject in code under test
+    filename: str | None = None  # filename: to be used for tmp local modules, i.e. paths
+    code: str | None = None  # code in the tmp local modules
+    inject: str | None = None  # any code to inject in code under test
 
 
 @pytest.fixture()