我的操作系统为 debian 9,安装了 python3.5 3.6.6 3.7,pip 为最新版 在我的 debian 系统上直接安装 guess_language-spirit,不管哪个 py 版本,一律是报: Collecting guess_language-spirit Could not find a version that satisfies the requirement guess_language-spirit (from versions: ) No matching distribution found for guess_language-spirit