[PY312] Add blosc to requirement.txt

[iarspider]

This package was added in #10017 in master, but not in py312.

[iarspider]

please test

[cmsbuild]

A new Pull Request was created by @iarspider for branch IB/CMSSW_15_1_X/py312.

@akritkbehera, @iarspider, @smuzaffar can you please review it and eventually sign? Thanks.
@antoniovilela, @mandrenguyen, @rappoccio, @sextonkennedy you are the release manager for this.
cms-bot commands are listed here

[cmsbuild]

cms-bot internal usage

[cmsbuild]

-1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-e40585/47808/summary.html
COMMIT: 57c6b8d
CMSSW: CMSSW_15_1_PY312_X_2025-08-13-2300/el8_amd64_gcc12
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week0/cms-sw/cmsdist/10036/47808/install.sh to create a dev area with all the needed externals and cmssw changes.

External Build

I found compilation error when building:

+ DEPS='py3-typing-extensions '
+ '[' 'py3-typing-extensions ' '!=' '' ']'
+ echo 'ERROR: Missing dependencies for py3-tables (python3) found: py3-typing-extensions '
ERROR: Missing dependencies for py3-tables (python3) found: py3-typing-extensions 
+ exit 1
error: Bad exit status from /data/cmsbld/jenkins/workspace/ib-run-pr-tests/testBuildDir/tmp/rpm-tmp.uPrqWD (%build)


RPM build errors:
Macro expanded in comment on line 415: %{pkginstroot}/bin/*



[iarspider]

please test

[cmsbuild]

Pull request #10036 was updated.

[cmsbuild]

-1

Failed Tests: UnitTests
Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-e40585/47809/summary.html
COMMIT: 8baaf71
CMSSW: CMSSW_15_1_PY312_X_2025-08-13-2300/el8_amd64_gcc12
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week0/cms-sw/cmsdist/10036/47809/install.sh to create a dev area with all the needed externals and cmssw changes.

The following merge commits were also included on top of IB + this PR after doing git cms-merge-topic:

• @cms-sw auto generate/repalce tool name and base variables #10018
• @cms-sw cleanup for py3 blosc/blosc2 and tables packages #10017
• @cms-sw Update tag for RecoLocalCalo-HGCalRecProducers to V00-01-00 #10033
• @cms-sw Fix tensorflow toolfile #10032

You can see more details here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-e40585/47809/git-recent-commits.json
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-e40585/47809/git-merge-result

Unit Tests

I found 6 errors in the following unit tests:

---> test TestConfigDP_12 had ERRORS
---> test TestConfigDP_2 had ERRORS
---> test TestConfigDP_5 had ERRORS
and more ...

Comparison Summary

Summary:

• You potentially added 127 lines to the logs
• ROOTFileChecks: Some differences in event products or their sizes found
• Reco comparison results: 0 differences found in the comparisons
• DQMHistoTests: Total files compared: 50
• DQMHistoTests: Total histograms compared: 4075697
• DQMHistoTests: Total failures: 259480
• DQMHistoTests: Total nulls: 41
• DQMHistoTests: Total successes: 3816156
• DQMHistoTests: Total skipped: 20
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: -28.181999999999984 KiB( 49 files compared)
• DQMHistoSizes: changed ( 1000.0,... ): -0.012 KiB MessageLogger/Errors
• DQMHistoSizes: changed ( 1000.0,... ): -0.012 KiB MessageLogger/Warnings
• DQMHistoSizes: changed ( 10224.0,... ): -1.696 KiB Btag/SV
• DQMHistoSizes: changed ( 145.604 ): 0.051 KiB JetMET/SUSYDQM
• DQMHistoSizes: changed ( 24834.911,... ): 1.771 KiB HLTGenVal/tauHAD__HLT_DoubleMediumChargedIsoPFTauHPS40_eta2p1__hltL1P2GTTau__2Dvspteta
• DQMHistoSizes: changed ( 24834.911,... ): 1.769 KiB HLTGenVal/tauHAD__HLT_DoubleMediumDeepTauPFTauHPS35_eta2p1__hltL1P2GTTau__2Dvspteta
• DQMHistoSizes: changed ( 24834.911,... ): 0.196 KiB HLTGenVal/tauHAD__HLT_DoubleMediumChargedIsoPFTauHPS40_eta2p1__hltL1P2GTTau__vspt
• DQMHistoSizes: changed ( 24834.911,... ): 0.193 KiB HLTGenVal/tauHAD__HLT_DoubleMediumDeepTauPFTauHPS35_eta2p1__hltL1P2GTTau__vspt
• DQMHistoSizes: changed ( 24834.911,... ): 0.143 KiB HLTGenVal/tauHAD__HLT_DoubleMediumChargedIsoPFTauHPS40_eta2p1__hltL1P2GTTau__vseta
• DQMHistoSizes: changed ( 24834.911,... ): 0.140 KiB HLTGenVal/tauHAD__HLT_DoubleMediumDeepTauPFTauHPS35_eta2p1__hltL1P2GTTau__vseta
• DQMHistoSizes: changed ( 24834.911 ): ...
• Checked 215 log files, 184 edm output root files, 50 DQM output files
• TriggerResults: found differences in 7 / 48 workflows

[iarspider]

@cmsbuild ignore tests-rejected with ib-failure
These unit tests sometimes time out in IBs as well.

[iarspider]

+externals

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next IB/CMSSW_15_1_X/py312 IBs (test failures were overridden). This pull request will now be reviewed by the release team before it's merged. @sextonkennedy, @ftenchini, @mandrenguyen (and backports should be raised in the release meeting by the corresponding L2)