Unicode chacter problem

[gokhanm]

I have a encode domain like "xn----gtbspbbmkef.xn--p1ai"
it is valid domain but validators raise ValidationFailure

a = idna.decode('xn----gtbspbbmkef.xn--p1ai')
validators.domain(a)
ValidationFailure(func=domain, args={'value': 'доктор-ост.рф'})

Another problem, underline subnet domains

validators.domain('victor_caffarena.tripod.com')
ValidationFailure(func=domain, args={'value': 'victor_caffarena.tripod.com'})

[kvesteri]

Thanks for reporting this. The problem is with the regex I've used. I tried googling for alternatives but none of the ones I found could validate the following test cases:

VALID domains:

example.com
xn----gtbspbbmkef.xn--p1ai
underscore_subdomain.example.com
something.versicherung

INVALID domains:

example.com/
example.com:4444
example.-com
example.
example

[kvesteri]

Found a good regex. Now fixed (as of version 0.10).