message: Fixing the setuptools issue for pip builds.
diff: @@ -315,6 +315,7 @@ create_activate_virtualenv_and_install_tensorflow() {
  # Upgrade pip so it supports tags such as cp27mu, manylinux1 etc.
  echo "Upgrade pip in virtualenv"
  pip install --upgrade pip==9.0.1
  + pip install --upgrade setuptools==39.1.0
  # Force tensorflow reinstallation. Otherwise it may not get installed from
  # last build if it had the same version number as previous build.
  