Bug 1900668 - mailman3 fails to build with Python 3.10: OSError: [Errno 9] Bad file descriptor
Summary: mailman3 fails to build with Python 3.10: OSError: [Errno 9] Bad file descri...
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: mailman3
Version: rawhide
Hardware: Unspecified
OS: Unspecified
Target Milestone: ---
Assignee: Aurelien Bompard
QA Contact: Fedora Extras Quality Assurance
Depends On:
Blocks: PYTHON3.10
TreeView+ depends on / blocked
Reported: 2020-11-23 13:56 UTC by Tomáš Hrnčiar
Modified: 2021-02-09 16:24 UTC (History)
5 users (show)

Fixed In Version:
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Type: Bug

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Description Tomáš Hrnčiar 2020-11-23 13:56:26 UTC
mailman3 fails to build with Python 3.10.0a2.

(mailman.mta.tests.test_connection.TestSTARTTLSConnectionCount) ... ERROR:asyncio:Fatal error on SSL transport
protocol: <asyncio.sslproto.SSLProtocol object at 0x7f51e0684fd0>
transport: <_SelectorSocketTransport closing fd=31>
Traceback (most recent call last):
  File "/usr/lib64/python3.10/asyncio/selector_events.py", line 918, in write
    n = self._sock.send(data)
OSError: [Errno 9] Bad file descriptor

For the build logs, see:

For all our attempts to build mailman3 with Python 3.10, see:

Testing and mass rebuild of packages is happening in copr. You can follow these instructions to test locally in mock if your package builds with Python 3.10:

Let us know here if you have any questions.

Python 3.10 will be included in Fedora 35. To make that update smoother, we're building Fedora packages with early pre-releases of Python 3.10.
A build failure prevents us from testing all dependent packages (transitive [Build]Requires), so if this package is required a lot, it's important for us to get it fixed soon.
We'd appreciate help from the people who know this package best, but if you don't want to work on this now, let us know so we can try to work around it on our side.

Comment 1 Ben Cotton 2021-02-09 15:27:15 UTC
This bug appears to have been reported against 'rawhide' during the Fedora 34 development cycle.
Changing version to 34.

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