message: Make pip_smoke_test.py run on Python 3
diff: @@ -141,6 +141,8 @@ def main():
  # pip_package_dependencies_list is the list of included files in pip packages
  pip_package_dependencies = subprocess.check_output(
  ["bazel", "cquery", PIP_PACKAGE_QUERY_EXPRESSION])
  + if isinstance(pip_package_dependencies, bytes):
  + pip_package_dependencies = pip_package_dependencies.decode("utf-8")
  pip_package_dependencies_list = pip_package_dependencies.strip().split("\n")
  pip_package_dependencies_list = [
  x.split()[0] for x in pip_package_dependencies_list
  @@ -151,6 +153,8 @@ def main():
  # tests in tensorflow
  tf_py_test_dependencies = subprocess.check_output(
  ["bazel", "cquery", PY_TEST_QUERY_EXPRESSION])
  + if isinstance(tf_py_test_dependencies, bytes):
  + tf_py_test_dependencies = tf_py_test_dependencies.decode("utf-8")
  tf_py_test_dependencies_list = tf_py_test_dependencies.strip().split("\n")
  tf_py_test_dependencies_list = [
  x.split()[0] for x in tf_py_test_dependencies.strip().split("\n")
  