Trap NXDOMAIN exception with dnspython.

2012-06-12 23:09:15 -04:00
parent f2c571ceff
commit 7e5aef1676
1 changed files with 6 additions and 4 deletions
@@ -27,10 +27,12 @@ __all__ = [

 def get_txt_dnspython(name):
    """Return a TXT record associated with a DNS name."""
+    try:
      a = dns.resolver.query(name, dns.rdatatype.TXT,raise_on_no_answer=False)
      for r in a.response.answer:
          if r.rdtype == dns.rdatatype.TXT:
              return b"".join(r.items[0].strings)
+    except dns.resolver.NXDOMAIN: pass
    return None