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[tmva][sofie] Guard old Keras parser against Keras-3 #20791

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Merged
guitargeek merged 1 commit into from
Jan 6, 2026
Merged

[tmva][sofie] Guard old Keras parser against Keras-3 #20791

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12 changes: 10 additions & 2 deletions tmva/sofie_parsers/src/RModelParser_Keras.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -873,8 +873,16 @@ RModel Parse(std::string filename, int batch_size){
// For each layer: type,name,activation,dtype,input tensor's name,
// output tensor's name, kernel's name, bias's name
// None object is returned for if property doesn't belong to layer
PyRunString("import tensorflow",fGlobalNS,fLocalNS);
PyRunString("import tensorflow.keras as keras",fGlobalNS,fLocalNS);
PyRunString("import tensorflow\n", fGlobalNS, fLocalNS);
PyRunString("import tensorflow.keras as keras\n"
"version = keras.__version__\n"
"major = int(version.split('.')[0])\n"
"if major >= 3:\n"
" raise RuntimeError(\n"
" 'TMVA SOFIE Keras parser supports Keras 2 only.\\n'\n"
" 'Keras 3 detected. Please export the model to ONNX.\\n'\n"
" )\n",
fGlobalNS, fLocalNS);
PyRunString("from tensorflow.keras.models import load_model",fGlobalNS,fLocalNS);
PyRunString("print('TF/Keras Version: '+ tensorflow.__version__)",fGlobalNS,fLocalNS);
PyRunString(TString::Format("model=load_model('%s')",filename.c_str()),fGlobalNS,fLocalNS);
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