message: Use PIP_BIN_PATH instead of just pip.
diff: @@ -169,7 +169,7 @@ check_python_pip_version() {
  # Retrieve only the version numbers of the python & pip in use currently.
  PYTHON_VER_IN_USE=$(python --version 2>&1)
  PYTHON_VER_IN_USE=${PYTHON_VER_IN_USE:7:3}
  - PIP_VER_IN_USE=$(pip --version)
  + PIP_VER_IN_USE=$(${PIP_BIN_PATH} --version)
  PIP_VER_IN_USE=${PIP_VER_IN_USE:${#PIP_VER_IN_USE}-4:3}
  # If only major versions are applied, drop minor versions.
  @@ -663,10 +663,10 @@ for WHL_PATH in $(ls ${PIP_WHL_DIR}/${PROJECT_NAME}*.whl); do
  if [[ ${OS_TYPE} == "ubuntu" ]]; then
  # Repair the wheels for cpu manylinux1
  echo "auditwheel repairing ${WHL_PATH}"
  - pip show auditwheel
  + ${PIP_BIN_PATH} show auditwheel
  set +e
  - pip install auditwheel==1.5.0
  - sudo pip install auditwheel==1.5.0
  + ${PIP_BIN_PATH} install auditwheel==1.5.0
  + sudo ${PIP_BIN_PATH} install auditwheel==1.5.0
  set -e
  auditwheel --version
  auditwheel repair -w "${WHL_DIR}" "${WHL_PATH}"
  