when trying to setup

[pociej]

x Installing Node.js: FAILED

-----------------------------------STDERR-----------------------------------
rm: cannot remove '/var/cache/apt/archives/lock': No such file or directory
bash: line 17: python: command not found
-----------------------------------STDOUT-----------------------------------
Get:1 http://security.ubuntu.com/ubuntu xenial-security InRelease [102 kB]
Hit:2 https://apt.dockerproject.org/repo ubuntu-xenial InRelease
Hit:3 http://ams2.mirrors.digitalocean.com/ubuntu xenial InRelease
Hit:4 http://ams2.mirrors.digitalocean.com/ubuntu xenial-updates InRelease
Hit:5 http://ams2.mirrors.digitalocean.com/ubuntu xenial-backports InRelease
Fetched 102 kB in 0s (131 kB/s)
Reading package lists...
----------------------------------------------------------------------------

Standard config on DO.
Any idea what might be wrong ?