dpkg: error: parsing file '/var/

在Ubuntu 18.04系统下，安装python3时遇到以下问题：

root@ubuntu:/home/run/code# apt-get install python3
E: dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem. 
root@ubuntu:/home/run/code# dpkg --configure -a
dpkg: error: parsing file '/var/lib/dpkg/updates/0026' near line 0:
 newline in field name '#padding'

记录下解决方法：

root@ubuntu:/home/run/code# rm /var/lib/dpkg/updates/*
root@ubuntu:/home/run/code# apt-get update
root@ubuntu:/home/run/code# apt-get upgrade
root@ubuntu:/home/run/code# apt-get install python3
Reading package lists... Done
Building dependency tree       
Reading state information... Done
...