Note: This is a public test instance of Red Hat Bugzilla. The data contained within is a snapshot of the live data so any changes you make will not be reflected in the production Bugzilla. Email is disabled so feel free to test any aspect of the site that you want. File any problems you find or give feedback at bugzilla.redhat.com.

Bug 1926202

Summary: openvswitch fails to build with Python 3.10ImportError: cannot import name 'Sequence' from 'collections'
Product: [Fedora] Fedora Reporter: Tomáš Hrnčiar <thrnciar>
Component: openvswitchAssignee: Timothy Redaelli <tredaelli>
Status: CLOSED RAWHIDE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: rawhideCC: aconole, chrisw, fleitner, mhroncok, tgraf, thrnciar, tredaelli
Target Milestone: ---   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-02-22 17:12:08 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1890881    

Description Tomáš Hrnčiar 2021-02-08 12:54:30 UTC
openvswitch fails to build with Python 3.10.0a5.

#                             -*- compilation -*-
1258. ovsdb-types.at:3: testing integer - Python3 ...
./ovsdb-types.at:3: $PYTHON3 $srcdir/test-ovsdb.py parse-atomic-type '["integer"]' 
--- /dev/null	2021-02-07 02:06:16.619048055 +0000
+++ /builddir/build/BUILD/openvswitch-2.14.0/tests/testsuite.dir/at-groups/1258/stderr	2021-02-07 02:36:25.975586284 +0000
@@ -0,0 +1,19 @@
+Traceback (most recent call last):
+  File "/builddir/build/BUILD/openvswitch-2.14.0/python/ovs/db/custom_index.py", line 10, in <module>
+    import sortedcontainers
+ModuleNotFoundError: No module named 'sortedcontainers'
+
+During handling of the above exception, another exception occurred:
+
+Traceback (most recent call last):
+  File "/builddir/build/BUILD/openvswitch-2.14.0/tests/testsuite.dir/1258/../.././test-ovsdb.py", line 21, in <module>
+    import ovs.db.idl
+  File "/builddir/build/BUILD/openvswitch-2.14.0/python/ovs/db/idl.py", line 25, in <module>
+    from ovs.db import custom_index
+  File "/builddir/build/BUILD/openvswitch-2.14.0/python/ovs/db/custom_index.py", line 12, in <module>
+    from ovs.compat import sortedcontainers
+  File "/builddir/build/BUILD/openvswitch-2.14.0/python/ovs/compat/sortedcontainers/__init__.py", line 41, in <module>
+    from .sortedlist import SortedList, SortedListWithKey
+  File "/builddir/build/BUILD/openvswitch-2.14.0/python/ovs/compat/sortedcontainers/sortedlist.py", line 9, in <module>
+    from collections import Sequence, MutableSequence
+ImportError: cannot import name 'Sequence' from 'collections' (/usr/lib64/python3.10/collections/__init__.py)

bpo-37324: Remove deprecated aliases to Collections Abstract Base Classes
from the collections module.

https://docs.python.org/3.10/whatsnew/changelog.html#python-3-10-0-alpha-5

For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.10/fedora-rawhide-x86_64/01952039-openvswitch/

For all our attempts to build openvswitch with Python 3.10, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.10/package/openvswitch/

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:
https://copr.fedorainfracloud.org/coprs/g/python/python3.10/

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 16:06:30 UTC
This bug appears to have been reported against 'rawhide' during the Fedora 34 development cycle.
Changing version to 34.