code: def peep_port(paths):
      
      if not paths:
          print('Please specify one or more requirements files so I have '
                'something to port.\n')
          return COMMAND_LINE_ERROR
  
      comes_from = None
      for req in chain.from_iterable(
              _parse_requirements(path, package_finder(argv)) for path in paths):
          req_path, req_line = path_and_line(req)
          hashes = [hexlify(urlsafe_b64decode((hash + '=').encode('ascii'))).decode('ascii')
                    for hash in hashes_above(req_path, req_line)]
          if req_path != comes_from:
              print()
              print('# from %s' % req_path)
              print()
              comes_from = req_path
  
          if not hashes:
              print(req.req)
          else:
              print('%s' % (req.link if getattr(req, 'link', None) else req.req), end='')
              for hash in hashes:
                  print(' \\')
                  print('    --hash=sha256:%s' % hash, end='')
              print()
docs: Convert a peep requirements file to one compatble with pip-8 hashing.
  
      Loses comments and tromps on URLs, so the result will need a little manual
      massaging, but the hard part--the hash conversion--is done for you.