给定一个 rpm 包名，查询 yum 数据库以获取更新 [英] Given an rpm package name, query the yum database for updates

问题描述

我正在想象一个 3 行 Python 脚本来执行此操作，但 yum Python API 是难以理解的.这甚至可能吗?

I was imagining a 3-line Python script to do this but the yum Python API is impenetrable. Is this even possible?

为yum list package-name"编写包装器是唯一的方法吗?

Is writing a wrapper for 'yum list package-name' the only way to do this?

推荐答案

正如 Seth 所指出的，您可以使用更新 API 来询问是否有可用的更新.对于接近yum 列表"的内容，您可能想要使用 doPackageLists().例如.

As Seth points out, you can use the updates APIs to ask if something is available as an update. For something that's close to what the "yum list" does you probably want to use the doPackageLists(). Eg.

import os, sys
import yum

yb = yum.YumBase()
yb.conf.cache = os.geteuid() != 1
pl = yb.doPackageLists(patterns=sys.argv[1:])
if pl.installed:
    print "Installed Packages"
    for pkg in sorted(pl.installed):
        print pkg
if pl.available:
    print "Available Packages"
    for pkg in sorted(pl.available):
        print pkg, pkg.repo
if pl.reinstall_available:
    print "Re-install Available Packages"
    for pkg in sorted(pl.reinstall_available):
        print pkg, pkg.repo

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