Fix build: rumps is a macos only dependency

jaraco/home/trap-watcher.py

@@ -1,17 +1,20 @@
+import sys
+from typing import TYPE_CHECKING
+
+if sys.platform != "darwin" and TYPE_CHECKING:
+    assert False  # https://github.com/python/mypy/issues/9025#issuecomment-1087270212
+
 import asyncio
 import pathlib
 import subprocess
-import sys
 
 import keyring
-import rumps
 import typer
 import victor_smart_kill as vsk
 
 from . import contact
 from .compat.py38 import resources
 
-
 app = typer.Typer()
 
 
@@ -63,4 +66,12 @@ def main(ctx: typer.Context, update: bool = False):
     TrapWatch()
 
 
-__name__ == '__main__' and app()
+if __name__ == '__main__':
+    # This check and import must be delayed as to not break pytest discovery
+    if sys.platform != "darwin":
+        print("This app is only available on MacOS.")
+        sys.exit(1)
+
+    import rumps
+
+    app()

newsfragments/3.bugfix.rst

@@ -0,0 +1 @@
+Fix build on non-Darwin machines -- by :user:`Avasam`

pyproject.toml

@@ -32,7 +32,7 @@ dependencies = [
 	'importlib_resources; python_version < "3.9"',
 	"jaraco.compat>=4.1",
 	"tempora>=5.7",
-	"rumps",
+	"rumps; sys_platform == 'darwin'",
 	"typer",
 ]
 dynamic = ["version"]