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@ryanmerolle
ryanmerolle / ip_regex.py
Last active November 25, 2021 14:31 — forked from dfee/ip_regex.py
Python IPV4 / IPV6 Regular Expressions (REGEX)
# Constructed with help from
# http://stackoverflow.com/questions/53497/regular-expression-that-matches-valid-ipv6-addresses
# Try it on regex101: https://regex101.com/r/yVdrJQ/1
import re
IPV4SEG = r'(?:25[0-5]|(?:2[0-4]|1{0,1}[0-9]){0,1}[0-9])'
IPV4ADDR = r'(?:(?:' + IPV4SEG + r'\.){3,3}' + IPV4SEG + r')'
IPV6SEG = r'(?:(?:[0-9a-fA-F]){1,4})'
IPV6GROUPS = (