Simpleio.py takes any dns address, and returns an IP parsed out of the address. The operation is very similar to nip.io.
(ins)[files][ssl]> dig @127.0.0.1 test.5.3.3.4.simple.io
; <<>> DiG 9.10.6 <<>> @127.0.0.1 test.5.3.3.4.simple.io
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 12588
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;test.5.3.3.4.simple.io. IN A
;; ANSWER SECTION:
test.5.3.3.4.simple.io. 0 IN A 5.3.3.4
;; Query time: 0 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue Feb 05 15:22:59 EST 2019
;; MSG SIZE rcvd: 57