DandelionNStuff/dkimpy-smtputf8
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Trap NXDOMAIN exception with dnspython.

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This commit is contained in:
Stuart D. Gathman
2012-06-12 23:09:15 -04:00
parent f2c571ceff
commit 7e5aef1676
1 changed files with 6 additions and 4 deletions
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dkim/dnsplug.py
+6 -4
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@@ -27,10 +27,12 @@ __all__ = [
def get_txt_dnspython(name): def get_txt_dnspython(name):
"""Return a TXT record associated with a DNS name.""" """Return a TXT record associated with a DNS name."""
a = dns.resolver.query(name, dns.rdatatype.TXT,raise_on_no_answer=False) try:
for r in a.response.answer: a = dns.resolver.query(name, dns.rdatatype.TXT,raise_on_no_answer=False)
if r.rdtype == dns.rdatatype.TXT: for r in a.response.answer:
return b"".join(r.items[0].strings) if r.rdtype == dns.rdatatype.TXT:
return b"".join(r.items[0].strings)
except dns.resolver.NXDOMAIN: pass
return None return None