如何以編程方式從apt獲取軟件包列表？

Question

如何使用Python/python-apt以編程方式獲得與「dpkg --get-selections」相同的結果？

Answer 1

要顯示的前五個包：

import apt_pkg 

apt_pkg.init() 
cache = apt_pkg.Cache() 

i = 5 
for pkg in cache.Packages: 
    print(pkg) 
    i -= 1 
    if i < 0: 
    break 

（當我的Ubuntu系統上運行）輸出：

$ python apt_package_list.py 
Reading package lists... Done 
Building dependency tree  
Reading state information... Done 
<apt_pkg.Package object: name:'tesseract-ocr-epo' section: 'universe/graphics' id:48834> 
<apt_pkg.Package object: name:'omninotify' section: '' id:48674> 
<apt_pkg.Package object: name:'pipenightdreams' section: 'universe/games' id:43500> 
<apt_pkg.Package object: name:'mumudvb' section: 'universe/misc' id:41568> 
<apt_pkg.Package object: name:'mpg123-alsa' section: '' id:41448> 
<apt_pkg.Package object: name:'tbb-examples' section: 'universe/doc' id:38301>