Python strip_tags supports retention of specified labels

#coding: Utf-8import redef strip_tags (String, allowed_tags= "):  if Allowed_tags! =":    # Get A list of all allowed Tag names.    Allowed_tags = Allowed_tags.split (', ')    allowed_tags_pattern = [' </? ' +allowed_tag+ ' [^>]*> ' for Allowed_tag in allowed_tags]    all_tags = Re.findall (R ' <[^>]+> ', string, re . I)    not_allowed_tags = []    tmp = 0 for    tag in all_tags: for        pattern in Allowed_tags_pattern:            rs = re.ma TCH (Pattern,tag)            if RS:                tmp + = 1            else:                tmp + = 0        if not tmp:            not_allowed_tags.append (tag )        tmp = 0    for Not_allowed_tag in not_allowed_tags:        string = Re.sub (Re.escape (Not_allowed_tag), ", String)    print not_allowed_tags  else:    # If No allowed tags, remove all.    String = Re.sub (R ' <[^>]*?> ', ', string)   return string

　　

Python strip_tags supports retention of specified labels