docstr: Case-sensitive path existence check
  
  >>> sdist._cs_path_exists(__file__)
  True
  >>> sdist._cs_path_exists(__file__.upper())
  False
code: def _cs_path_exists(fspath):
      """
      Case-sensitive path existence check
  
      >>> sdist._cs_path_exists(__file__)
      True
      >>> sdist._cs_path_exists(__file__.upper())
      False
      """
      if not os.path.exists(fspath):
          return False
      # make absolute so we always have a directory
      abspath = os.path.abspath(fspath)
      directory, filename = os.path.split(abspath)
      return filename in os.listdir(directory)
  
imports: import os
  import sys
  from glob import glob
  from warnings import warn
  from ..core import Command
  from distutils import dir_util
  from distutils import file_util
  from distutils import archive_util
  from ..text_file import TextFile
  from ..filelist import FileList
  from distutils._log import log
  from ..util import convert_path
  from ..errors import DistutilsOptionError, DistutilsTemplateError
label_desc: Use image node_id 8 for calling the sdist obj's underlying member method code with example usage: obj._cs_path_exists(fspath) and returns: unknown, False