好的，所以我得到了 PiFace2，我正在尝试安装 pifacecad，但您需要 pyton3lirc，但这就是我正在尝试的
pi@raspberrypi:~ $ sudo apt-get install python3-lirc
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
python3-lirc : Depends: python3 (< 3.5) but 3.5.3-1 is to be installed
E: Unable to correct problems, you have held broken packages.