Merge branch 'flake8_phys1' into 'master'

...erivationFramework/DerivationFrameworkCalo/CMakeLists.txt

...mework/DerivationFrameworkCalo/python/CaloCellDFGetter.py

...erivationFramework/DerivationFrameworkCore/CMakeLists.txt

...ramework/DerivationFrameworkCore/python/ContentHandler.py

...rivationFrameworkCore/python/DerivationFrameworkMaster.py

...ationFrameworkCore/python/DerivationFrameworkProdFlags.py

...work/DerivationFrameworkCore/python/LHE3WeightMetadata.py

...ramework/DerivationFrameworkCore/python/SlimmingHelper.py

...ramework/DerivationFrameworkCore/python/ThinningHelper.py

...ramework/DerivationFrameworkCore/python/WeightMetadata.py

...ivationFramework/DerivationFrameworkEGamma/CMakeLists.txt

...ork/DerivationFrameworkEGamma/python/EGAM1ExtraContent.py

...ork/DerivationFrameworkEGamma/python/EGAM2ExtraContent.py

...ork/DerivationFrameworkEGamma/python/EGAM3ExtraContent.py

...ork/DerivationFrameworkEGamma/python/EGAM4ExtraContent.py

...ork/DerivationFrameworkEGamma/python/EGAM5ExtraContent.py

...ork/DerivationFrameworkEGamma/python/EGAM7ExtraContent.py

...ork/DerivationFrameworkEGamma/python/EGAM8ExtraContent.py

...ork/DerivationFrameworkEGamma/python/EGAM9ExtraContent.py

...ramework/DerivationFrameworkEGamma/python/EGammaCommon.py