code: def include_file(filename, global_vars=None, local_vars=None):
      
      if global_vars is None:
          global_vars = sys._getframe(1).f_globals
      if local_vars is None:
          local_vars = sys._getframe(1).f_locals
  
      with open(filename, 'r') as f:
          code = compile(f.read(), os.path.basename(filename), 'exec')
          exec(code, global_vars, local_vars)
          pass
docs: .. deprecated 2.1::
          Don't use this any more.
  
          It's not pythonic.
  
  
      include file like php include.
  
      include is very useful when we need to split large config file