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Posted to commits@buildstream.apache.org by "mcatanzaro (via GitHub)" <gi...@apache.org> on 2025/09/04 20:06:14 UTC
[I] AttributeError: module 'asyncio' has no attribute 'set_child_watcher' [buildstream]
mcatanzaro opened a new issue, #2053:
URL: https://github.com/apache/buildstream/issues/2053
Looks like bst 2.5.0 is unfortunately incompatible with Python 3.14.0rc2. Here's an example of me trying to run `bst build components/openssl.bst` in the freedesktop-sdk project using Fedora 43's buildstream package:
```
BUG module 'asyncio' has no attribute 'set_child_watcher'
Traceback (most recent call last):
File "/usr/bin/bst", line 8, in <module>
sys.exit(cli())
~~~^^
File "/usr/lib/python3.14/site-packages/click/core.py", line 1442, in __call__
return self.main(*args, **kwargs)
~~~~~~~~~^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.14/site-packages/click/core.py", line 1363, in main
rv = self.invoke(ctx)
File "/usr/lib/python3.14/site-packages/click/core.py", line 1830, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
File "/usr/lib/python3.14/site-packages/click/core.py", line 1226, in invoke
return ctx.invoke(self.callback, **ctx.params)
~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.14/site-packages/click/core.py", line 794, in invoke
return callback(*args, **kwargs)
File "/usr/lib/python3.14/site-packages/click/decorators.py", line 46, in new_func
return f(get_current_context().obj, *args, **kwargs)
File "/usr/lib64/python3.14/site-packages/buildstream/_frontend/cli.py", line 522, in build
app.stream.build(
~~~~~~~~~~~~~~~~^
elements,
^^^^^^^^^
...<6 lines>...
retry_failed=retry_failed,
^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "/usr/lib64/python3.14/site-packages/buildstream/_stream.py", line 442, in build
self._run(announce_session=True)
~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib64/python3.14/site-packages/buildstream/_stream.py", line 1811, in _run
status = self._scheduler.run(self.queues, self._context.get_cascache().get_casd())
File "/usr/lib64/python3.14/site-packages/buildstream/_scheduler/scheduler.py", line 53, in wrapper
return func(*args, **kwargs)
File "/usr/lib64/python3.14/site-packages/buildstream/_scheduler/scheduler.py", line 145, in run
asyncio.set_child_watcher(asyncio.SafeChildWatcher()) # pylint: disable=deprecated-class
^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib64/python3.14/asyncio/__init__.py", line 74, in __getattr__
raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
AttributeError: module 'asyncio' has no attribute 'set_child_watcher'
Error in sys.excepthook:
Traceback (most recent call last):
File "/usr/lib64/python3.14/site-packages/buildstream/_frontend/app.py", line 538, in _global_exception_handler
self.stream.terminate()
~~~~~~~~~~~~~~~~~~~~~^^
File "/usr/lib64/python3.14/site-packages/buildstream/_stream.py", line 1276, in terminate
self._scheduler.terminate()
~~~~~~~~~~~~~~~~~~~~~~~~~^^
File "/usr/lib64/python3.14/site-packages/buildstream/_scheduler/scheduler.py", line 242, in terminate
self.loop.call_soon(self._terminate_jobs_real)
^^^^^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'call_soon'
Original exception was:
Traceback (most recent call last):
File "/usr/bin/bst", line 8, in <module>
sys.exit(cli())
~~~^^
File "/usr/lib/python3.14/site-packages/click/core.py", line 1442, in __call__
return self.main(*args, **kwargs)
~~~~~~~~~^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.14/site-packages/click/core.py", line 1363, in main
rv = self.invoke(ctx)
File "/usr/lib/python3.14/site-packages/click/core.py", line 1830, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
File "/usr/lib/python3.14/site-packages/click/core.py", line 1226, in invoke
return ctx.invoke(self.callback, **ctx.params)
~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.14/site-packages/click/core.py", line 794, in invoke
return callback(*args, **kwargs)
File "/usr/lib/python3.14/site-packages/click/decorators.py", line 46, in new_func
return f(get_current_context().obj, *args, **kwargs)
File "/usr/lib64/python3.14/site-packages/buildstream/_frontend/cli.py", line 522, in build
app.stream.build(
~~~~~~~~~~~~~~~~^
elements,
^^^^^^^^^
...<6 lines>...
retry_failed=retry_failed,
^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "/usr/lib64/python3.14/site-packages/buildstream/_stream.py", line 442, in build
self._run(announce_session=True)
~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib64/python3.14/site-packages/buildstream/_stream.py", line 1811, in _run
status = self._scheduler.run(self.queues, self._context.get_cascache().get_casd())
File "/usr/lib64/python3.14/site-packages/buildstream/_scheduler/scheduler.py", line 53, in wrapper
return func(*args, **kwargs)
File "/usr/lib64/python3.14/site-packages/buildstream/_scheduler/scheduler.py", line 145, in run
asyncio.set_child_watcher(asyncio.SafeChildWatcher()) # pylint: disable=deprecated-class
^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib64/python3.14/asyncio/__init__.py", line 74, in __getattr__
raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
AttributeError: module 'asyncio' has no attribute 'set_child_watcher'
```
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Re: [I] AttributeError: module 'asyncio' has no attribute 'set_child_watcher' [buildstream]
Posted by "nanonyme (via GitHub)" <gi...@apache.org>.
nanonyme commented on issue #2053:
URL: https://github.com/apache/buildstream/issues/2053#issuecomment-3255840411
I would say duplicate. This was known removal, no one just fixed it in time
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Re: [I] AttributeError: module 'asyncio' has no attribute 'set_child_watcher' [buildstream]
Posted by "juergbi (via GitHub)" <gi...@apache.org>.
juergbi commented on issue #2053:
URL: https://github.com/apache/buildstream/issues/2053#issuecomment-3264735047
Yes, let's close this as a duplicate and try to fix #1990 as soon as possible.
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Re: [I] AttributeError: module 'asyncio' has no attribute 'set_child_watcher' [buildstream]
Posted by "juergbi (via GitHub)" <gi...@apache.org>.
juergbi closed issue #2053: AttributeError: module 'asyncio' has no attribute 'set_child_watcher'
URL: https://github.com/apache/buildstream/issues/2053
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Re: [I] AttributeError: module 'asyncio' has no attribute 'set_child_watcher' [buildstream]
Posted by "mcatanzaro (via GitHub)" <gi...@apache.org>.
mcatanzaro commented on issue #2053:
URL: https://github.com/apache/buildstream/issues/2053#issuecomment-3255566543
Looks like this is a sequel to #1990
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