Same in 3.8. Versions below 3.8 throw a ValueError. But this is not an issue: >>> import ipaddress >>> ipaddress.IPv4Address('010.0.0.1') IPv4Address('1

Same in 3.8. Versions below 3.8 throw a ValueError. But this is not an issue: >>> import ipaddress >>> ipaddress.IPv4Address('010.0.0.1') IPv4Address('10.0.0.1')