我使用以下代码安装了几个python包：
sudo apt-get install python-setuptools python-dev build-essential
但它给我带来了未满足的依赖错误：
The following packages have unmet dependencies:
python-dev : Depends: python (= 2.7.11-1) but 2.7.13-1 is to be installed
Depends: python2.7-dev (>= 2.7.11-1~) but it is not going to be installed
python-setuptools : Depends: python-pkg-resources (= 20.7.0-1) but it is not going to be installed
Depends: python:any (< 2.8)
Depends: python:any (>= 2.7.5-5~)
E: Unable to correct problems, you have held broken packages.
我尝试了这两个步骤，但仍然有错误：
$ sudo apt --fix-broken install
$ sudo apt-get update
$ sudo apt-get upgrade
sudo dpkg --configure -a
sudo apt update && sudo apt-get autoclean && sudo apt-get clean && sudo apt-get autoremove
sudo apt dist-upgrade -y