message: Force sanity configure step to use python3.8
  It currently attempts to use python3.5. So build breaks.
  Should fully unblock
diff: @@ -641,8 +641,8 @@ do_configure_test() {
  do
  export TF_NEED_CUDA=${WITH_CUDA}
  export CUDNN_INSTALL_PATH="/usr/local/cudnn"
  - export PYTHON_BIN_PATH=$(which python)
  - yes "" | ./configure
  + export PYTHON_BIN_PATH=$(which python3.8)
  + yes "" | ${PYTHON_BIN_PATH} configure.py
  RESULT=$?
  if [[ ${RESULT} != "0" ]]; then
  