def InstallOsTextGenerator(self, min_os=None, max_os=None):
    """Generates readable text about minimum and maximum OSs for a package.

    Args:
      min_os: Minimum OS setting as a string.
      max_os: Maximum OS setting as a string.

    Returns:
      result: String, which OSs will get the install.
    """
    # TODO(user): This should handle minor releases as well.
    # If a minimum or maximum OS is set, this reads only the 4th character,
    # which will correspond with the major OS version.
    min_os_major = GetOSXMajorVersion(min_os)
    if min_os_major == '4' or min_os_major == '5':
      min_os_major = None

    max_os_major = GetOSXMajorVersion(max_os)
    if max_os_major and min_os_major:
      if max_os_major == min_os_major:
        result_string = ' %s %s.' % (settings.RELEASE_REPORT_VERSION_VERB,
                                     OSX_VERSIONS[max_os_major])
      elif max_os_major and not min_os_major:
        result_string = ' %s %s and earlier versions of the OS.' % (
            settings.RELEASE_REPORT_VERSION_VERB, OSX_VERSIONS[max_os_major])
      elif min_os_major and not max_os_major:
        result_string = ' %s %s and later versions of the OS.' % (
            settings.RELEASE_REPORT_VERSION_VERB, OSX_VERSIONS[min_os_major])
      else:
        version_list = []
        for version_number in range(int(min_os_major), int(max_os_major)+1):
          version_list.append(OSX_VERSIONS[str(version_number)])
        and_list = ' and '.join(version_list)
        grammar_string = and_list.replace(' and ', ', ', len(version_list)-2)
        result_string = ' %s %s.' % (settings.RELEASE_REPORT_VERSION_VERB,
                                     grammar_string)
    else:
      result_string = '.'
    return result_string
dataset/ETHPy150Open google/simian/src/simian/mac/admin/release_report.py/ReleaseReport.InstallOsTextGenerator/operator `or` -> `and`