message: [CircleCI] fix config for python_root
diff: @@ -67,9 +67,10 @@ jobs:
  export CUDA_HOME=/usr/local/cuda-10.1
  export NCCL_HOME=$FF_HOME/nccl/build
  export PATH=/opt/conda/bin:$PATH
  - export PYTHON_ROOT=/opt/conda/bin/python3
  - export PYTHON_EXE=python3
  - export PYTHON_VERSION_MAJOR=3
  + which python3
  + #export PYTHON_ROOT=/opt/conda/bin/python3
  + #export PYTHON_EXE=python3
  + #export PYTHON_VERSION_MAJOR=3
  export GASNET=$FF_HOME/../gasnet/release
  export CPLUS_INCLUDE_PATH=/usr/include/mpi:$CPLUS_INCLUDE_PATH
  cd python
  