[3.12] pythongh-135101: When choosing the default simulator device, don't use simctl --set testing (pythonGH-135102) (python#135114)

miss-islington · joerick · freakboy3742 · commit 258330ee6533 · 2026-01-29T14:30:03.000+08:00
On a fresh Xcode install (including some CI provider configurations), there is no pre-existing testing set that can be used to identify simulator models. Use the default device set to detect available models instead. Live testing simulators are still created in the testing set. (cherry picked from commit dba9de7) Co-authored-by: Joe Rickerby <joerick@mac.com>
diff --git a/iOS/testbed/__main__.py b/iOS/testbed/__main__.py
@@ -84,7 +84,7 @@ async def async_check_output(*args, **kwargs):
 async def select_simulator_device():
     # List the testing simulators, in JSON format
     raw_json = await async_check_output(
-        "xcrun", "simctl", "--set", "testing", "list", "-j"
+        "xcrun", "simctl", "list", "-j"
     )
     json_data = json.loads(raw_json)
 

Original file line number	Diff line number	Diff line change
`@@ -84,7 +84,7 @@ async def async_check_output(args, *kwargs):`
`84`	`84`	`async def select_simulator_device():`
`85`	`85`	`# List the testing simulators, in JSON format`
`86`	`86`	`raw_json = await async_check_output(`
`87`		`- "xcrun", "simctl", "--set", "testing", "list", "-j"`
	`87`	`+ "xcrun", "simctl", "list", "-j"`
`88`	`88`	`)`
`89`	`89`	`json_data = json.loads(raw_json)`
`90`	`90`