code: def compatible_python_version():
      return "{}.{}".format(
          sys.version_info.major, sys.version_info.minor
      )
  
imports: from __future__ import absolute_import
  import base64
  import os
  import subprocess
  import shutil
  import pytest
  import docker
  import re
  import sys
  from docker.errors import BuildError
  from sagemaker.utils import sagemaker_timestamp, _tmpdir, sts_regional_endpoint
label_desc: Use image node_id 1 for calling a global function with example usage: compatible_python_version() and returns: str