[BuildRules] patch release build fix: use realpath for import python module

[smuzaffar]

As cms-sw/cmssw#46955 has been merged , so we can enable the usage of realpth for cmssw python package imports

[cmsbuild]

A new Pull Request was created by @smuzaffar for branch IB/CMSSW_15_0_X/master.

@cmsbuild, @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

[smuzaffar]

test parameters:

• addpkg = FWCore, DataFormats

[smuzaffar]

please test

[cmsbuild]

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-2bb03b/43504/summary.html
COMMIT: 59aa9d4
CMSSW: CMSSW_15_0_X_2024-12-17-1100/el8_amd64_gcc12
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week0/cms-sw/cmsdist/9583/43504/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 Added git-lfs and update git to version 2.47.1 #9569
• @cms-sw [BuildRule]Fix for code checks #9575

You can see more details here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-2bb03b/43504/git-recent-commits.json
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-2bb03b/43504/git-merge-result

Comparison Summary

Summary:

• You potentially added 14 lines to the logs
• Reco comparison results: 15 differences found in the comparisons
• DQMHistoTests: Total files compared: 46
• DQMHistoTests: Total histograms compared: 3510017
• DQMHistoTests: Total failures: 442
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3509555
• DQMHistoTests: Total skipped: 20
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 45 files compared)
• Checked 202 log files, 172 edm output root files, 46 DQM output files
• TriggerResults: no differences found