amend to c2d2e79b0d: missing error variable in import block;

additionally fixes forgotten skip for cymru server case, if --no-network specified);
Closes #1568

fail2ban/server/banmanager.py

@@ -142,7 +142,7 @@ class BanManager:
 				resolver.lifetime = timeout
 				resolver.timeout = timeout / 2
 				self.dnsResolver = resolver
-			except ImportError: # pragma: no cover
+			except ImportError as e: # pragma: no cover
 				logSys.error("dnspython package is required but could not be imported")
 				return_dict["error"] = repr(e)
 				return_dict["asn"].append("error")

fail2ban/tests/servertestcase.py

@@ -559,6 +559,7 @@ class Transmitter(TransmitterBase):
 		)
 
 	def testJailStatusCymru(self):
+		unittest.F2B.SkipIfNoNetwork()
 		try:
 			import dns.exception
 			import dns.resolver