make uvloop optional

pyproject.toml

@@ -11,7 +11,7 @@ readme = "README.md"
 python = "^3.7"
 textual = { version = ">=0.13.0", extras = ["dev"] }
 aiohttp = "^3.8.4"
-uvloop = "^0.17.0"
+uvloop = { version = "^0.17.0", platform = "windows" }
 click = "^8.1.3"
 aiohttp-jinja2 = "^1.5.1"
 pydantic = "^2.1.1"

src/textual_web/cli.py

@@ -16,7 +16,6 @@ from .ganglion_client import GanglionClient
 from rich.console import Console
 from rich.logging import RichHandler
 from rich.text import Text
-import uvloop
 
 from importlib_metadata import version
 
@@ -150,9 +149,14 @@ def app(
     if not ganglion_client.app_count:
         ganglion_client.add_app("Welcome", "textual-web --welcome", "welcome")
 
-    if sys.version_info >= (3, 11):
-        with asyncio.Runner(loop_factory=uvloop.new_event_loop) as runner:
-            runner.run(ganglion_client.run())
-    else:
-        uvloop.install()
+    try:
+        import uvloop
+    except ImportError:
         asyncio.run(ganglion_client.run())
+    else:
+        if sys.version_info >= (3, 11):
+            with asyncio.Runner(loop_factory=uvloop.new_event_loop) as runner:
+                runner.run(ganglion_client.run())
+        else:
+            uvloop.install()
+            asyncio.run(ganglion_client.run())