Use ipaddress to detect valid and invalid IPs #165
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Fixes #164
This leads to a breaking change: well-formed but invalid IPv6 such as
[0:0:0:0:0:0:0:1:1:1:1:1:1:1:1:9999999999999]
now raise aValueError
. However one can argue that this is not exactly a behavior change but more a bugfix.If you think the breaking change is too harsh, I can do another PR that would raise a deprecation warning when a well-formed invalid IPv6 is encountered, to be merged and released before this PR is merged and released.
What do you think?