Clean up import for pyright

Author: KoolADE85

dash/development/_py_components_generation.py

@@ -22,18 +22,17 @@
 import_string = """# AUTO GENERATED FILE - DO NOT EDIT
 
 import typing  # noqa: F401
-from typing import TYPE_CHECKING  # noqa: F401
 from typing_extensions import TypedDict, NotRequired, Literal # noqa: F401
 from dash.development.base_component import Component, _explicitize_args
-if TYPE_CHECKING:
+try:
     from dash.types import NumberType  # noqa: F401
-else:
-    try:
-        from dash.types import NumberType  # noqa: F401
-    except ImportError:
-        NumberType = typing.Union[  # noqa: F401
-            typing.SupportsFloat, typing.SupportsInt, typing.SupportsComplex
-        ]
+except ImportError:
+    # Backwards compatibility for dash<=4.1.0
+    if typing.TYPE_CHECKING:
+        raise
+    NumberType = typing.Union[  # noqa: F401
+        typing.SupportsFloat, typing.SupportsInt, typing.SupportsComplex
+    ]
 {custom_imports}
 ComponentSingleType = typing.Union[str, int, float, Component, None]
 ComponentType = typing.Union[