Add tvOS Testbed.

[johnzhou721]

Add a tvOS testbed. This is currently failing with the latest stable release of Python Apple Support (w/ platform-config stripped) with (EDIT -- actually the result of #8 since I messed stuff up with my local files):

est Suite 'iOSTestbedTests' started at 2025-05-08 19:40:44.480.
Test Case '-[iOSTestbedTests testPython]' started.
Test command: (
    test,
    "-uall",
    "--single-process",
    "--rerun",
    "-W"
)
Configuring isolated Python...
Pre-initializing Python runtime...
PythonHome: /Users/johnzhou/Library/Developer/XCTestDevices/7D33A312-D280-4723-8D97-E1D4DC17BAE1/data/Containers/Bundle/Application/8FCF1EB2-1088-4555-B21D-F9CFED9D1DFA/tvOSTestbed.app/python
Configure argc/argv...
Initializing Python runtime...
App packages path: /Users/johnzhou/Library/Developer/XCTestDevices/7D33A312-D280-4723-8D97-E1D4DC17BAE1/data/Containers/Bundle/Application/8FCF1EB2-1088-4555-B21D-F9CFED9D1DFA/tvOSTestbed.app/app_packages
App path: /Users/johnzhou/Library/Developer/XCTestDevices/7D33A312-D280-4723-8D97-E1D4DC17BAE1/data/Containers/Bundle/Application/8FCF1EB2-1088-4555-B21D-F9CFED9D1DFA/tvOSTestbed.app/app
---------------------------------------------------------------------------
/Users/johnzhou/Library/Developer/XCTestDevices/7D33A312-D280-4723-8D97-E1D4DC17BAE1/data/Containers/Bundle/Application/8FCF1EB2-1088-4555-B21D-F9CFED9D1DFA/tvOSTestbed.app/python/lib/python3.14/selectors.py:579: RuntimeWarning: An exception of type <class 'AttributeError'> was raised while registering an after-fork handler for select.kqueue objects: module 'posix' has no attribute 'register_at_fork'
  selector_obj = selector()
== CPython 3.14.0a6 (main, Mar 19 2025, 06:55:59) [Clang 15.0.0 (clang-1500.3.9.4)]
Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "/Users/johnzhou/Library/Developer/XCTestDevices/7D33A312-D280-4723-8D97-E1D4DC17BAE1/data/Containers/Bundle/Application/8FCF1EB2-1088-4555-B21D-F9CFED9D1DFA/tvOSTestbed.app/python/lib/python3.14/test/__main__.py", line 2, in <module>
    main(_add_python_opts=True)
    ~~~~^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/johnzhou/Library/Developer/XCTestDevices/7D33A312-D280-4723-8D97-E1D4DC17BAE1/data/Containers/Bundle/Application/8FCF1EB2-1088-4555-B21D-F9CFED9D1DFA/tvOSTestbed.app/python/lib/python3.14/test/libregrtest/main.py", line 765, in main
    Regrtest(ns, _add_python_opts=_add_python_opts).main(tests=tests)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^
  File "/Users/johnzhou/Library/Developer/XCTestDevices/7D33A312-D280-4723-8D97-E1D4DC17BAE1/data/Containers/Bundle/Application/8FCF1EB2-1088-4555-B21D-F9CFED9D1DFA/tvOSTestbed.app/python/lib/python3.14/test/libregrtest/main.py", line 757, in main
    exitcode = self.run_tests(selected, tests)
  File "/Users/johnzhou/Library/Developer/XCTestDevices/7D33A312-D280-4723-8D97-E1D4DC17BAE1/data/Containers/Bundle/Application/8FCF1EB2-1088-4555-B21D-F9CFED9D1DFA/tvOSTestbed.app/python/lib/python3.14/test/libregrtest/main.py", line 585, in run_tests
    return self._run_tests(selected, tests)
           ~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
  File "/Users/johnzhou/Library/Developer/XCTestDevices/7D33A312-D280-4723-8D97-E1D4DC17BAE1/data/Containers/Bundle/Application/8FCF1EB2-1088-4555-B21D-F9CFED9D1DFA/tvOSTestbed.app/python/lib/python3.14/test/libregrtest/main.py", line 527, in _run_tests
    display_header(self.use_resources, self.python_cmd)
    ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/johnzhou/Library/Developer/XCTestDevices/7D33A312-D280-4723-8D97-E1D4DC17BAE1/data/Containers/Bundle/Application/8FCF1EB2-1088-4555-B21D-F9CFED9D1DFA/tvOSTestbed.app/python/lib/python3.14/test/libregrtest/utils.py", line 651, in display_header
    print("==", platform.platform(aliased=True),
                ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^
  File "/Users/johnzhou/Library/Developer/XCTestDevices/7D33A312-D280-4723-8D97-E1D4DC17BAE1/data/Containers/Bundle/Application/8FCF1EB2-1088-4555-B21D-F9CFED9D1DFA/tvOSTestbed.app/python/lib/python3.14/platform.py", line 1437, in platform
    system, node, release, version, machine, processor = uname()
                                                         ~~~~~^^
  File "/Users/johnzhou/Library/Developer/XCTestDevices/7D33A312-D280-4723-8D97-E1D4DC17BAE1/data/Containers/Bundle/Application/8FCF1EB2-1088-4555-B21D-F9CFED9D1DFA/tvOSTestbed.app/python/lib/python3.14/platform.py", line 1153, in uname
    system, release, _, _ = tvos_ver()
                            ~~~~~~~~^^
  File "/Users/johnzhou/Library/Developer/XCTestDevices/7D33A312-D280-4723-8D97-E1D4DC17BAE1/data/Containers/Bundle/Application/8FCF1EB2-1088-4555-B21D-F9CFED9D1DFA/tvOSTestbed.app/python/lib/python3.14/platform.py", line 550, in tvos_ver
    return TVOSVersionInfo(*result)
TypeError: TVOSVersionInfo.__new__() takes 5 positional arguments but 6 were given
/Users/johnzhou/cpython-fb37/tvOS/testbed/tvOSTestbedTests/tvOSTestbedTests.m:154: error: -[iOSTestbedTests testPython] : ((exit_code) equal to (0)) failed: ("1") is not equal to ("0") - Test suite did not pass
---------------------------------------------------------------------------
Test Case '-[iOSTestbedTests testPython]' failed (17.349 seconds).
Test Suite 'iOSTestbedTests' failed at 2025-05-08 19:41:01.829.
	 Executed 1 test, with 1 failure (0 unexpected) in 17.349 (17.349) seconds

Also there's no __main__.py so far. EDIT: The logs is a bug in #8

[johnzhou721]

Also, note that this crashes with EXC_BAD_ACCESS if Mac Catalyst patch on Python-Apple-Support -- beeware/Python-Apple-support#280 is applied. That is already detected at the iOS testbed there.

[freakboy3742]

I asked this in general terms yesterday - PLEASE slow down.

To be explicit - I'm going to ignore this pull request until #8 is completed.

[johnzhou721]

I asked this in general terms yesterday - PLEASE slow down.

To be explicit - I'm going to ignore this pull request until #8 is completed.

Entirely expected. This is just a very rough first draft -- and I'm expecting you to ignore it, until we sort out more stuff. Sorry for accidentally misclicking Ready for Review 1 minute before I sent this comment.

[johnzhou721]

FYI -- my intent is to make sure I do not lose the code that I stored in a separate working tree prior to starting Mac Catalyst does not get lost if my computer has a virus or something, so it's a draft PR on here.

[johnzhou721]

Ready for review. Will need to sort out test failures within the next few days.

[johnzhou721]

OK... how do you export a variable to sysconfigdata? TVOS_DEPLOYMENT_TARGET and WATCHOS_DEPLOYMENT_TARGET are not exported and that is what is causing one of the test failures. Also the defaults for gettting TVOS_DEPLOYMENT_TARGET is 9.0 but the default in build is 12.0. All of those are for sysconfig.