dnspython: fix deprecation warnings when using dnspython 2.0

related: #6828

electrum/dns_hacks.py

@@ -69,8 +69,8 @@ def _fast_getaddrinfo(host, *args, **kwargs):
         addrs = []
         expected_errors = (dns.resolver.NXDOMAIN, dns.resolver.NoAnswer,
                            concurrent.futures.CancelledError, concurrent.futures.TimeoutError)
-        ipv6_fut = _dns_threads_executor.submit(dns.resolver.query, host, dns.rdatatype.AAAA)
-        ipv4_fut = _dns_threads_executor.submit(dns.resolver.query, host, dns.rdatatype.A)
+        ipv6_fut = _dns_threads_executor.submit(dns.resolver.resolve, host, dns.rdatatype.AAAA)
+        ipv4_fut = _dns_threads_executor.submit(dns.resolver.resolve, host, dns.rdatatype.A)
         # try IPv6
         try:
             answers = ipv6_fut.result()

electrum/dnssec.py

@@ -151,7 +151,6 @@ def query(url, rtype):
         validated = True
     except BaseException as e:
         _logger.info(f"DNSSEC error: {repr(e)}")
-        resolver = dns.resolver.get_default_resolver()
-        out = resolver.query(url, rtype)
+        out = dns.resolver.resolve(url, rtype)
         validated = False
     return out, validated

electrum/lnworker.py

@@ -382,7 +382,7 @@ class LNWorker(Logger, NetworkRetryManager[LNPeerAddr]):
         for srv_ans in srv_answers:
             try:
                 # note: this might block for several seconds
-                answers = dns.resolver.query(srv_ans['host'])
+                answers = dns.resolver.resolve(srv_ans['host'])
             except dns.exception.DNSException as e:
                 self.logger.info(f'failed querying (2) dns seed "{dns_seed}" for ln peers: {repr(e)}')
                 continue

electrum/util.py

@@ -1295,7 +1295,7 @@ def list_enabled_bits(x: int) -> Sequence[int]:
 
 
 def resolve_dns_srv(host: str):
-    srv_records = dns.resolver.query(host, 'SRV')
+    srv_records = dns.resolver.resolve(host, 'SRV')
     # priority: prefer lower
     # weight: tie breaker; prefer higher
     srv_records = sorted(srv_records, key=lambda x: (x.priority, -x.weight))