gh-119180: Rename SOURCE format to STRING

[JelleZijlstra]

python/peps#4000

• Issue: Implement PEP 649 and PEP 749 #119180

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📚 Documentation preview 📚: https://cpython-previews--124620.org.readthedocs.build/

[bedevere-bot]

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot aarch64 Android 3.x has failed when building commit 2c10832.

What do you need to do:

1. Don't panic.
2. Check the buildbot page in the devguide if you don't know what the buildbots are or how they work.
3. Go to the page of the buildbot that failed (https://buildbot.python.org/#/builders/1594/builds/110) and take a look at the build logs.
4. Check if the failure is related to this commit (2c10832) or if it is a false positive.
5. If the failure is related to this commit, please, reflect that on the issue and make a new Pull Request with a fix.

You can take a look at the buildbot page here:

https://buildbot.python.org/#/builders/1594/builds/110

Failed tests:

• test_android

Failed subtests:

• test_bytes - test.test_android.TestAndroidOutput.test_bytes

Summary of the results of the build (if available):

==

Click to see traceback logs

Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/asyncio/runners.py", line 118, in run
    return self._loop.run_until_complete(task)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/asyncio/base_events.py", line 687, in run_until_complete
    return future.result()
           ^^^^^^^^^^^^^^^
  File "/Volumes/InternalDisk/Users/android/buildarea/3.x.mhsmith-android-aarch64/build/Android/android.py", line 530, in run_testbed
    async with asyncio.TaskGroup() as tg:
  File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/asyncio/taskgroups.py", line 134, in __aexit__
    raise propagate_cancellation_error
  File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/asyncio/taskgroups.py", line 110, in __aexit__
    await self._on_completed_fut
asyncio.exceptions.CancelledError


Traceback (most recent call last):
  File "/data/user/0/org.python.testbed/files/python/lib/python3.14/test/test_android.py", line 67, in assert_log
    line = self.logcat_queue.get(timeout=(deadline - time()))
  File "/data/user/0/org.python.testbed/files/python/lib/python3.14/queue.py", line 212, in get
    raise Empty
_queue.Empty


Traceback (most recent call last):
  File "/data/user/0/org.python.testbed/files/python/lib/python3.14/test/test_android.py", line 57, in setUp
    self.assert_log("I", tag, message, skip=True, timeout=5)
    ~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/data/user/0/org.python.testbed/files/python/lib/python3.14/test/test_android.py", line 69, in assert_log
    self.fail(f"line not found: {expected!r}")
    ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: line not found: 'test.test_android.TestAndroidOutput.test_bytes 1727384280.6351213'

[JelleZijlstra]

That seems unrelated.

[mhsmith]

Agreed, the buildbot failure is unrelated. I've created #124666 to track it.