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Description of problem¶

pyyaml==6.0 installation fails with "AttributeError: cython_sources" and is an instance of https://github.com/yaml/pyyaml/issues/601

Environment¶

• ceph version string: v18.0.0-7432-g329e2a1e046
• Platform (OS/distro/release): Fedora 39
• Cluster details (nodes, monitors, OSDs): N/A
• Did it happen on a stable environment or after a migration/upgrade?: N/A
• Browser used (e.g.: Version 86.0.4240.198 (Official Build) (64-bit)): N/A

How reproducible¶

100%

Steps:

Create a new fedora 39 environment and run install-deps.sh

Actual results¶

+ pip --timeout 300 --exists-action i wheel -w wheelhouse-wip -r requirements-alerts.txt -r requirements-grafonnet.txt -r requirements-lint.txt                                                                                             
Collecting pyyaml==6.0 (from -r requirements-alerts.txt (line 1))                                                                                                                                                                           
  Downloading PyYAML-6.0.tar.gz (124 kB)                                                                                                                                                                                                    
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 125.0/125.0 kB 252.3 kB/s eta 0:00:00                                                                                                                                                         
  Installing build dependencies ... done                                                                                                                                                                                                    
  Getting requirements to build wheel ... error
...
        File "/tmp/pip-build-env-t3m5whfk/overlay/lib/python3.12/site-packages/setuptools/_distutils/cmd.py", line 107, in __getattr__                                                                                                      
          raise AttributeError(attr)                                                                                                                                                                                                        
      AttributeError: cython_sources                                                                                                                                                                                                        
      [end of output]                                                                                                                                                                                                                       

  note: This error originates from a subprocess, and is likely not a problem with pip.                                
error: subprocess-exited-with-error 

Expected results¶

Successful completion of install-deps.sh

Additional info¶

The following patch resolves the failure in install-deps.sh and allows it to complete but has not been validated in any other way.

diff --git a/install-deps.sh b/install-deps.sh
index d01bc6464e6..1d6ba5b8cbf 100755
--- a/install-deps.sh
+++ b/install-deps.sh
@@ -304,7 +304,8 @@ function populate_wheelhouse() {
     pip $PIP_OPTS $install \
       'setuptools >= 0.8' 'pip >= 21.0' 'wheel >= 0.24' 'tox >= 2.9.1' || return 1
     if test $# != 0 ; then
-        pip $PIP_OPTS $install $@ || return 1
+        echo "cython<3" > /tmp/constraint.txt
+        PIP_CONSTRAINT=/tmp/constraint.txt pip $PIP_OPTS $install $@ || return 1
     fi
 }