code: def extract_code(obj, compile_mode):
      
      try:
          code = obj.__code__
          if isinstance(code, CodeType):
              return code
          raise ValueError(
              "{obj} has a `__code__` attribute, "
              "but it's an instance of {notcode!r}, not CodeType.".format(
                  obj=obj,
                  notcode=type(code).__name__,
              )
          )
      except AttributeError:
          raise ValueError("Don't know how to extract code from %s." % obj)
docs: Generic function for converting objects into instances of `CodeType`.