const tensorflow::quantization::PyFunctionLibrary*
                      quantization_py_function_library) {
  // Use Python C API to validate and convert arguments. In py3 (bytes),
  // in py2 (str).
  auto ConvertArg = [&](PyObject* obj, bool* error) {
    char* buf;
    Py_ssize_t len;
    if (::tflite::python_utils::ConvertFromPyString(obj, &buf, &len) == -1) {
      *error = true;

    environ_cp['PYTHON_LIB_PATH'] = python_lib_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():
    python_lib_path = cygpath(python_lib_path)

  # Set-up env variables used by python_configure.bzl