[issue34453] ipaddress module accepts some strange IPv6 addresses that it shouldn't

Michał Radwański added the comment: The point is that the specification is not complete and thus left for the implementations to decide. Python's version hits the sweet spot between inclusive and correct - as long as a version is unambiguous, it is accepted. --

[issue34453] ipaddress module accepts some strange IPv6 addresses that it shouldn't

Change by Serhiy Storchaka : -- nosy: +ncoghlan, pmoody ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue34453] ipaddress module accepts some strange IPv6 addresses that it shouldn't

Prudvi RajKumar Maddala added the comment: I think Michal is right -- ___ Python tracker ___ ___ Python-bugs-list mailing list

[issue34453] ipaddress module accepts some strange IPv6 addresses that it shouldn't

Luke Kenneth Casson Leighton added the comment: that's interesting, michael: it means that all of the IPv6 validators online are wrong, like this one! https://formvalidation.io/guide/validators/ip/ -- ___ Python tracker

[issue34453] ipaddress module accepts some strange IPv6 addresses that it shouldn't

Michał Radwański added the comment: According to the RFC ( https://tools.ietf.org/html/rfc4291#section-2.2 ), last four bytes can be an address in the format of IPv4 address. The latter doesn't specify whether leading zeros are permitted or not. For illustration let's look at the

[issue34453] ipaddress module accepts some strange IPv6 addresses that it shouldn't

Luke Kenneth Casson Leighton added the comment: hi prudvi: i have absolutely no idea. i am simply running test validators online, which show and confirm that they are correctly INVALID. a google search shows a number of IPv6 validators:

[issue34453] ipaddress module accepts some strange IPv6 addresses that it shouldn't

Prudvi RajKumar Maddala added the comment: Hi lkcl, can you help me understand why exactly the below IPv6 addresses are invalid? ('::::::00.00.00.00', False) ('::::::000.000.000.000', False) I pulled the above addresses from your git testcase.

[issue34453] ipaddress module accepts some strange IPv6 addresses that it shouldn't

Luke Kenneth Casson Leighton added the comment: > Hi lkcl, are you working on the fix? I'd like to work on it. hi prudvi, i'm not: i'm simply making people aware that there's an issue that needs to be addressed (pun intended) -- ___ Python tracker

[issue34453] ipaddress module accepts some strange IPv6 addresses that it shouldn't

Prudvi RajKumar Maddala added the comment: Hi Ikcl, are you working on the fix? I'd like to work on it. -- nosy: +prudvinit ___ Python tracker ___

[issue34453] ipaddress module accepts some strange IPv6 addresses that it shouldn't

New submission from Luke Kenneth Casson Leighton : adding some unit tests to some code being written, searched randomly on the internet for an IPv6 test suite and found one in php *shudder* # https://github.com/gws/ipv6-address-test/blob/master/Tests/Ipv6TestCase.php converted it to python,