aptly --cache --install some_package # or aplty --cache some_directory --install some_package
apt-get -o dir::cache::archives="/home/user/.config/aptly/cache" install some_package
command = ["apt-get", "-o", "dir::cache::archives="/home/user/.config/aptly/cache"", "install", "some_package"] subprocess.call(command)
E: could not open lock file /var/cache/apt/" /home/user/.config/aptly/cache/" /lock - open (2 no such file or directory