satisfy pyright (#2793)

Author: willmcgugan

docs/examples/guide/input/binding01.py

@@ -8,7 +8,6 @@ class Bar(Static):
 
 
 class BindingApp(App):
-
     CSS_PATH = "binding01.css"
     BINDINGS = [
         ("r", "add_bar('red')", "Add Red"),

src/textual/_types.py

@@ -3,6 +3,8 @@
 from typing_extensions import Protocol
 
 if TYPE_CHECKING:
+    from rich.segment import Segment
+
     from .message import Message
 
 

src/textual/app.py

@@ -721,7 +721,7 @@ def animator(self) -> Animator:
         return self._animator
 
     @property
-    def screen(self) -> Screen:
+    def screen(self) -> Screen[object]:
         """The current active screen.
 
         Returns:
@@ -834,8 +834,8 @@ def _log(
     def call_from_thread(
         self,
         callback: Callable[..., CallThreadReturnType | Awaitable[CallThreadReturnType]],
-        *args,
-        **kwargs,
+        *args: object,
+        **kwargs: object,
     ) -> CallThreadReturnType:
         """Run a callable from another thread, and return the result.
 
@@ -1712,7 +1712,7 @@ def uninstall_screen(self, screen: Screen | str) -> str | None:
                     return name
         return None
 
-    def pop_screen(self) -> Screen:
+    def pop_screen(self) -> Screen[object]:
         """Pop the current [screen](/guide/screens) from the stack, and switch to the previous screen.
 
         Returns:

src/textual/dom.py

@@ -457,7 +457,7 @@ def parent(self) -> DOMNode | None:
         return cast("DOMNode | None", self._parent)
 
     @property
-    def screen(self) -> "Screen":
+    def screen(self) -> "Screen[object]":
         """The screen containing this node.
 
         Returns:

src/textual/message_pump.py

@@ -31,10 +31,15 @@
 from .timer import Timer, TimerCallback
 
 if TYPE_CHECKING:
+    from typing_extensions import TypeAlias
+
     from .app import App
     from .css.model import SelectorSet
 
 
+Callback: TypeAlias = "Callable[..., Any] | Callable[..., Awaitable[Any]]"
+
+
 class CallbackError(Exception):
     pass
 
@@ -174,7 +179,7 @@ def has_parent(self) -> bool:
         return self._parent is not None
 
     @property
-    def app(self) -> "App":
+    def app(self) -> "App[object]":
         """
         Get the current app.
 
@@ -369,7 +374,7 @@ def set_interval(
         self._timers.add(timer)
         return timer
 
-    def call_after_refresh(self, callback: Callable, *args: Any, **kwargs: Any) -> bool:
+    def call_after_refresh(self, callback: Callback, *args: Any, **kwargs: Any) -> bool:
         """Schedule a callback to run after all messages are processed and the screen
         has been refreshed. Positional and keyword arguments are passed to the callable.
 
@@ -387,7 +392,7 @@ def call_after_refresh(self, callback: Callable, *args: Any, **kwargs: Any) -> b
         message = messages.InvokeLater(partial(callback, *args, **kwargs))
         return self.post_message(message)
 
-    def call_later(self, callback: Callable, *args: Any, **kwargs: Any) -> bool:
+    def call_later(self, callback: Callback, *args: Any, **kwargs: Any) -> bool:
         """Schedule a callback to run after all messages are processed in this object.
         Positional and keywords arguments are passed to the callable.
 
@@ -404,7 +409,7 @@ def call_later(self, callback: Callable, *args: Any, **kwargs: Any) -> bool:
         message = events.Callback(callback=partial(callback, *args, **kwargs))
         return self.post_message(message)
 
-    def call_next(self, callback: Callable, *args: Any, **kwargs: Any) -> None:
+    def call_next(self, callback: Callback, *args: Any, **kwargs: Any) -> None:
         """Schedule a callback to run immediately after processing the current message.
 
         Args:

tests/test_concurrency.py

@@ -20,7 +20,7 @@ def test_call_from_thread():
     class BackgroundThread(Thread):
         """A background thread which will modify app in some way."""
 
-        def __init__(self, app: App) -> None:
+        def __init__(self, app: App[object]) -> None:
             self.app = app
             super().__init__()
 
@@ -33,7 +33,7 @@ def write_stuff(text: str) -> None:
             # Exit the app with a code we can assert
             self.app.call_from_thread(self.app.exit, 123)
 
-    class ThreadTestApp(App):
+    class ThreadTestApp(App[object]):
         """Trivial app with a single widget."""
 
         def compose(self) -> ComposeResult: