deobfuscate ip addresses in python dictionary - python-2.7

Question

I need to parse a file that contains flat text and extract both valid ip addresses and obfuscated ip addresses.
(ie. 192.168.1[.]1 or 192.168.1(.)1 or 192.168.1[dot]1 or 192.168.1(dot)1 or 192 . 168 . 1 . 1)
Once the data is extracted I need to convert them all to valid format and remove duplicates.
My current code places the ip addresses into a string, which should be a dict? I know I need to use some kind of recursion to set the key value, but I feel there is a more efficient and modular way to complete the task.
import json, ordereddict, re
# define the pattern of valid and obfuscated ips
pattern = r"((([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])[ (\[]?(\.|dot)[ )\]]?){3}([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5]))"
# open data file that contains ip addresses and other text
with open ("sample.txt", "r") as myfile:
text=myfile.read().replace('\n', '')
# put non normalized ip addresses in a dictionary
ips = {"data": [{"key1": match[0] for match in re.findall(pattern, text) }]}
# normalized ip addresses
for name, datalist in ips.iteritems():
for datadict in datalist:
for key, value in datadict.items():
if value == "(dot)":
datadict[key] = "."
if value == "[dot]":
datadict[key] = "."
if value == " . ":
datadict[key] = "."
if value == " .":
datadict[key] = "."
if value == ". ":
datadict[key] = "."
# write valid ip address to json file
with open('test.json', 'w') as outfile:
json.dump(ips, outfile)
Sample data file
These are valid ip addresses 192.168.1.1, 8.8.8.8
These are obfuscated 192.168.2[.]1 or 192.168.3(.)1 or 192.168.1[dot]1
192.168.1[dot]1 or 192.168.1(dot)1 or 192 .168 .1 .1 or 192. 168. 1. 1. or 192 . 168 . 1 . 1
This is what an invalid ip address looks like, they should be excluded 256.1.1.1 or 500.1.500.1 or 192.168.4.0
Expected result
192.168.1.1, 192.168.2.1, 192.168.3.1 , 8.8.8.8