Raised UnicodeError instead of LabelTooLong when label is longer than 63

[Martin Basti]

Hi,

using special unicode characters with length longer than 63 after encoding, raise UnicodeError instead LabelTooLong exception

Traceback:

UnicodeError                              Traceback (most recent call last)

<ipython-input-62-cce6ad634841> in <module>()

----> 1 name = dns.name.from_unicode(u"čťžýáčťžýáčťžýáščťžýščťžýľščťžľšščťžťščťščťťťťýž.com")

/usr/lib/python2.7/site-packages/dns/name.pyc in from_unicode(text, origin)

    576                 if len(label) == 0:

    577                     raise EmptyLabel

--> 578                 labels.append(encodings.idna.ToASCII(label))

    579                 label = u''

    580             elif c == u'\\':

/usr/lib64/python2.7/encodings/idna.pyc in ToASCII(label)

    101     if 0 < len(label) < 64:

    102         return label

--> 103     raise UnicodeError("label empty or too long")

    104 

    105 def ToUnicode(label):

UnicodeError: label empty or too long