JetSubStructureMomentTools: enable flake8 and make code compliant

Reconstruction/Jet/JetSubStructureMomentTools/CMakeLists.txt

@@ -37,5 +37,5 @@ atlas_add_dictionary( JetSubStructureMomentToolsDict
    LINK_LIBRARIES JetSubStructureMomentToolsLib )
 
 # Install files from the package:
-atlas_install_python_modules( python/*.py )
+atlas_install_python_modules( python/*.py POST_BUILD_CMD ${ATLAS_FLAKE8} )
 atlas_install_joboptions( share/*.py )

Reconstruction/Jet/JetSubStructureMomentTools/python/DefaultTools.py

@@ -10,6 +10,7 @@ from JetSubStructureMomentTools.JetSubStructureMomentToolsConf import Dipolarity
 from JetSubStructureMomentTools.JetSubStructureMomentToolsConf import PlanarFlowTool
 from JetSubStructureMomentTools.JetSubStructureMomentToolsConf import KtMassDropTool
 from JetSubStructureMomentTools.JetSubStructureMomentToolsConf import EnergyCorrelatorTool
+from JetSubStructureMomentTools.JetSubStructureMomentToolsConf import EnergyCorrelatorGeneralizedTool
 from JetSubStructureMomentTools.JetSubStructureMomentToolsConf import EnergyCorrelatorGeneralizedRatiosTool
 from JetSubStructureMomentTools.JetSubStructureMomentToolsConf import CenterOfMassShapesTool
 from JetSubStructureMomentTools.JetSubStructureMomentToolsConf import JetPullTool