Consolidate Single IPs Into Ranges

Sometimes you'll have a file of one IP per line and it contains large swaths of continuous IP space. Listing out each IP of a /24 is unnecessary many times and looks way better if you shrink/consolidate them into networks.
I wrote the following python script to do just that.

#!/usr/bin/env python3
#takes in a file of one-per-line IPs and consolidates them into ranges
#@atucom

import ipaddress
import argparse
import sys

result = []
def consolidate(ipobj):
  result.append(ipobj)
  for ipstr in iparry:
    ipobj2 = ipaddress.ip_address(ipstr)
    if ipobj + 1 == ipobj2:
      result.append(ipobj2)
      iparry.remove(ipstr)
      consolidate(ipobj2)


if __name__ == '__main__':
  parser = argparse.ArgumentParser()
  parser.add_argument("FILE" ,help='The input file of one-per-line IPs to consolidate')
  args = parser.parse_args()
  if args.FILE:
    with open(args.FILE, 'r') as f:
      iparry = f.read().splitlines()
    for ipstr in iparry:
      consolidate(ipaddress.ip_address(ipstr))
      if ipaddress.ip_address(ipstr) == result[-1]:
        print(result[-1])
      else:
        print("%s - %s" % (ipaddress.ip_address(ipstr), result[-1]))
  else:
    exit(1)

It takes in a list of unique one-per-line IPs and outputs "-" notation of ranges

That "ips2.txt" file simply contains the following:
192.168.1.0
192.168.1.1
192.168.1.11
192.168.1.13
192.168.1.14
192.168.1.15
192.168.1.16
192.168.1.17
192.168.1.19
192.168.1.2
192.168.1.21
192.168.1.23
192.168.1.24
192.168.1.25
192.168.1.26
192.168.1.3
192.168.1.4
192.168.1.5
192.168.1.7
192.168.1.9