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devstack /tools /verify-ipv6-address.py

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#!/usr/bin/env python3
import argparse
import ipaddress
import sys
def main():
parser = argparse.ArgumentParser(
description="Check if a given string is a valid IPv6 address.",
formatter_class=argparse.RawTextHelpFormatter,
)
parser.add_argument(
"address",
help=(
"The IPv6 address string to validate.\n"
"Examples:\n"
" 2001:0db8:85a3:0000:0000:8a2e:0370:7334\n"
" 2001:db8::1\n"
" ::1\n"
" fe80::1%eth0 (scope IDs are handled)"
),
)
args = parser.parse_args()
try:
# try to create a IPv6Address: if we fail to parse or get an
# IPv4Address then die
ip_obj = ipaddress.ip_address(args.address.strip('[]'))
if isinstance(ip_obj, ipaddress.IPv6Address):
sys.exit(0)
else:
sys.exit(1)
except ValueError:
sys.exit(1)
except Exception as e:
print(f"An unexpected error occurred during validation: {e}", file=sys.stderr)
sys.exit(1)
if __name__ == "__main__":
main()