code: def __init__(self, name, sourcedir=""):
      Extension.__init__(self, name, sources=[])
      self.sourcedir = os.path.abspath(sourcedir)
  
file_path: delta/gcompiler/python/setup.py
imports: import os
  import sys
  import re
  import platform
  import subprocess
  from setuptools import setup, Extension, find_packages
  from setuptools.command.build_ext import build_ext
  from distutils.version import LooseVersion
label_desc: Use image node_id 1 to create a new DeltaExportExtension object from inherited base classes: Extension with example: obj = DeltaExportExtension(name, sourcedir)