From a7ca2dbde8d722b9ef6fc7ea4d85c40957974fc1 Mon Sep 17 00:00:00 2001
From: Will McGugan <willmcgugan@gmail.com>
Date: Mon, 1 Jul 2024 10:50:17 +0100
Subject: [PATCH] speed up import

---
 src/textual/_time.py                 | 5 ++---
 src/textual/app.py                   | 4 +---
 src/textual/drivers/_input_reader.py | 4 ++--
 src/textual/drivers/web_driver.py    | 3 +--
 src/textual/worker.py                | 2 +-
 5 files changed, 7 insertions(+), 11 deletions(-)

diff --git a/src/textual/_time.py b/src/textual/_time.py
index fea8a569ed..13446dfb84 100644
--- a/src/textual/_time.py
+++ b/src/textual/_time.py
@@ -1,10 +1,9 @@
 import asyncio
-import platform
+import sys
 from asyncio import sleep as asyncio_sleep
 from time import monotonic, perf_counter
 
-PLATFORM = platform.system()
-WINDOWS = PLATFORM == "Windows"
+WINDOWS = sys.platform == "win32"
 
 
 if WINDOWS:
diff --git a/src/textual/app.py b/src/textual/app.py
index 6fff775bc1..0acfdcb904 100644
--- a/src/textual/app.py
+++ b/src/textual/app.py
@@ -12,7 +12,6 @@
 import inspect
 import io
 import os
-import platform
 import signal
 import sys
 import threading
@@ -132,8 +131,7 @@
     from .pilot import Pilot
     from .widget import MountError  # type: ignore  # noqa: F401
 
-PLATFORM = platform.system()
-WINDOWS = PLATFORM == "Windows"
+WINDOWS = sys.platform == "win32"
 
 # asyncio will warn against resources not being cleared
 if constants.DEBUG:
diff --git a/src/textual/drivers/_input_reader.py b/src/textual/drivers/_input_reader.py
index 84c72d3633..30f652284b 100644
--- a/src/textual/drivers/_input_reader.py
+++ b/src/textual/drivers/_input_reader.py
@@ -1,8 +1,8 @@
-import platform
+import sys
 
 __all__ = ["InputReader"]
 
-WINDOWS = platform.system() == "Windows"
+WINDOWS = sys.platform == "win32"
 
 if WINDOWS:
     from ._input_reader_windows import InputReader
diff --git a/src/textual/drivers/web_driver.py b/src/textual/drivers/web_driver.py
index 293901a427..f4536639c7 100644
--- a/src/textual/drivers/web_driver.py
+++ b/src/textual/drivers/web_driver.py
@@ -14,7 +14,6 @@
 import asyncio
 import json
 import os
-import platform
 import signal
 import sys
 from codecs import getincrementaldecoder
@@ -29,7 +28,7 @@
 from ._byte_stream import ByteStream
 from ._input_reader import InputReader
 
-WINDOWS = platform.system() == "Windows"
+WINDOWS = sys.platform == "win32"
 
 
 class _ExitInput(Exception):
diff --git a/src/textual/worker.py b/src/textual/worker.py
index f7f10b60ae..d3455b9a61 100644
--- a/src/textual/worker.py
+++ b/src/textual/worker.py
@@ -293,7 +293,7 @@ async def do_work() -> ResultType:
             return asyncio.run(do_work())
 
         def run_coroutine(
-            work: Callable[[], Coroutine[None, None, ResultType]]
+            work: Callable[[], Coroutine[None, None, ResultType]],
         ) -> ResultType:
             """Set the active worker and await coroutine."""
             return run_awaitable(work())