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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def Parse(self, cmd, args, stdout, stderr, return_val, time_taken, knowledge_base):
 """Parse the yum repolist output."""

    _ = stderr, time_taken, args, knowledge_base  # Unused.
    self.CheckReturn(cmd, return_val)
    output = iter(stdout.decode("utf-8").splitlines())

    repo_regexes = {
        "name": self._re_compile("Repo-name"),
        "revision": self._re_compile("Repo-revision"),
        "last_update": self._re_compile("Repo-updated"),
        "num_packages": self._re_compile("Repo-pkgs"),
        "size": self._re_compile("Repo-size"),
        "baseurl": self._re_compile("Repo-baseurl"),
        "timeout": self._re_compile("Repo-expire")
    }

    repo_id_re = self._re_compile("Repo-id")

    for line in output:
      match = repo_id_re.match(line)
      if match:
        repo_info = rdf_client.PackageRepository()
        setattr(repo_info, "id", match.group(1).strip())
        while line:
          for attr, regex in iteritems(repo_regexes):
            match = regex.match(line)
            if match:
              setattr(repo_info, attr, match.group(1).strip())
              break
          line = next(output)
        yield repo_info