From: Petr Spacek <pspacek@redhat.com>
Date: Thu, 7 Jul 2016 14:36:13 +0000 (+0200)
Subject: Add method to force re-read resolv.conf: resolver.reset_default_resolver()
X-Git-Tag: v1.15.0~33^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=82dba807a995c63d5068e0569e81ced791bb2dc0;p=thirdparty%2Fdnspython.git

Add method to force re-read resolv.conf: resolver.reset_default_resolver()
---

diff --git a/dns/resolver.py b/dns/resolver.py
index 5ab58ec5..5bd1e8d8 100644
--- a/dns/resolver.py
+++ b/dns/resolver.py
@@ -1088,12 +1088,20 @@ default_resolver = None
 
 def get_default_resolver():
     """Get the default resolver, initializing it if necessary."""
-    global default_resolver
     if default_resolver is None:
-        default_resolver = Resolver()
+        reset_default_resolver()
     return default_resolver
 
 
+def reset_default_resolver():
+    """Re-initialize default resolver.
+
+    resolv.conf will be re-read immediatelly.
+    """
+    global default_resolver
+    default_resolver = Resolver()
+
+
 def query(qname, rdtype=dns.rdatatype.A, rdclass=dns.rdataclass.IN,
           tcp=False, source=None, raise_on_no_answer=True,
           source_port=0):