message: Set --host_force_python=PY2 when using python2
  Fixes
diff: @@ -236,7 +236,9 @@ def setup_python(environ_cp):
  python_lib_path = default_python_lib_path
  environ_cp['PYTHON_LIB_PATH'] = python_lib_path
  - _ = get_python_major_version(python_bin_path)
  + python_major_version = get_python_major_version(python_bin_path)
  + if python_major_version == '2':
  + write_to_bazelrc('build --host_force_python=PY2')
  # Convert python path to Windows style before writing into bazel.rc
  if is_windows() or is_cygwin():
  