do not import BytesIO into rdata namespace

diff --git a/dns/rdata.py b/dns/rdata.py
index 297f0db043d247a4d5d6dcc7d6ef91c008ce990f..6396d1bb96e8f717d6fa033c43aad75034feadc8 100644 (file)
--- a/dns/rdata.py
+++ b/dns/rdata.py
@@ -18,7 +18,6 @@
 """DNS rdata."""
 
 from importlib import import_module
-from io import BytesIO
 import base64
 import binascii
 import io
@@ -183,7 +182,7 @@ class Rdata(object):
         Returns a ``binary``.
         """
 
-        f = BytesIO()
+        f = io.BytesIO()
         self.to_wire(f, None, origin)
         return f.getvalue()