Broken backward compatibility with older releases

[bfonta]

I'm using this repository within release CMSSW_10_6_29 for the resonant $HH\rightarrow bb\tau\tau$ analysis.
This commit (9cfa01925ae3e9bed808a08519aa37a3c5a68ac5) @Prasant1993 introduces references to Run 3 files that do not exist for older releases, breaking backward compatibility.
For your reference, the first error I get is (run within crab):

ERROR: ImportError: No module named mvaElectronID_RunIIIWinter22_iso_V1_cff

[Prasant1993]

Hi @bfonta, the master branch was updated to add the Run3 IDs and energy scale+smearing corrections to run for electron and photon collections in MiniAOD. The Run3 IDs are not available anymore in Run2 if you are processing in CMSSW_10. Unfortunately backward compatibility fails.

You may try to run this postrecotools file instead for CMSSW_10 to work in Run2 : https://github.com/jainshilpi/EgammaPostRecoTools/tree/master

If you compare the two postreco files, the only difference you will get is adding Run3 IDs and corrections.

[bfonta]

Thanks for the reply.
I was wondering whether we could add some conditional statements using the cmsswVersion variable (link), or else tag a particular commit to make it clear it refers to Run2.
Anyways, I've simply removed the Run3-related lines in the commit I mentioned above, and the code worked. I suppose this is equivalent to your suggested solution, but let me know otherwise.