[Pydns-developer] [ pydns-Bugs-2126911 ] Cannot mxlookup unicode strings

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Bugs item #2126911, was opened at 2008-09-24 20:31
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Thomas Perl (thp4)
Assigned to: Nobody/Anonymous (nobody)
Summary: Cannot mxlookup unicode strings

Initial Comment:
I've also sent this to the mailing list, althogh here would probably be a better spot:


I'm using formencode, which uses pyDNS to look up mx records to
validate e-mail addresses entered on web forms. pyDNS yields a
traceback when trying to mxlookup an unicode string.

I've also submitted this to formencode, but I'm pretty sure it's a
pyDNS problem. formencode bug:

http://sourceforge.net/tracker/index.php?func=detail&aid=2126902&group_id=91231&atid=596416


Here's how to reproduce:

>>> import DNS.Base
>>> DNS.Base.ParseResolvConf()
>>> from DNS.lazy import mxlookup
>>> mxlookup('gmx.at')  
[(10, 'mx0.gmx.de'), (10, 'mx0.gmx.net')]
>> mxlookup(u'gmx.at')  
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
  File "/var/lib/python-support/python2.4/DNS/lazy.py", line 26, in
mxlookup a = Base.DnsRequest(name, qtype = 'mx').req().answers
  File "/var/lib/python-support/python2.4/DNS/Base.py", line 191, in req
    m.addQuestion(qname, qtype, Class.IN)
  File "/var/lib/python-support/python2.4/DNS/Lib.py", line 466, in
addQuestion self.addname(qname)
  File "/var/lib/python-support/python2.4/DNS/Lib.py", line 133, in
addname self.buf = self.buf + buf
UnicodeDecodeError: 'ascii' codec can't decode byte 0xbb in position 0:
ordinal not in range(128)


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