class_docstr: Smart sdist that finds anything supported by revision control
class_docstr_tok: ["Smart","sdist","that","finds","anything","supported","by","revision","control"]
code: def check_readme(self):
      for f in self.READMES:
          if os.path.exists(f):
              return
      else:
          self.warn(
              "standard file not found: should have one of "
              + ", ".join(self.READMES)
          )
  
imports: from distutils import log
  import distutils.command.sdist
  import os
  import sys
  import contextlib
  from itertools import chain
  from .._importlib import metadata
  from .build import _ORIGINAL_SUBCOMMANDS
label_desc: Use image node_id 13 for calling the sdist obj's underlying member method code with example usage: obj.check_readme() without return types