Merge pull request #1264 from AndyMender/1262_delivery_tag_types

Make `delivery_tag` default to `0` in `Channel` and `BlockingChannel`

pika/adapters/blocking_connection.py

@@ -2111,7 +2111,7 @@ def basic_ack(self, delivery_tag=0, multiple=False):
         self._impl.basic_ack(delivery_tag=delivery_tag, multiple=multiple)
         self._flush_output()
 
-    def basic_nack(self, delivery_tag=None, multiple=False, requeue=True):
+    def basic_nack(self, delivery_tag=0, multiple=False, requeue=True):
         """This method allows a client to reject one or more incoming messages.
         It can be used to interrupt and cancel large incoming messages, or
         return untreatable messages to their original queue.
@@ -2299,7 +2299,7 @@ def basic_recover(self, requeue=False):
                 requeue=requeue, callback=recover_ok_result.signal_once)
             self._flush_output(recover_ok_result.is_ready)
 
-    def basic_reject(self, delivery_tag=None, requeue=True):
+    def basic_reject(self, delivery_tag=0, requeue=True):
         """Reject an incoming message. This method allows a client to reject a
         message. It can be used to interrupt and cancel large incoming messages,
         or return untreatable messages to their original queue.

pika/channel.py

@@ -379,7 +379,7 @@ def basic_get(self, queue, callback, auto_ack=False):
         # frames (or similar)
         self._send_method(spec.Basic.Get(queue=queue, no_ack=auto_ack))
 
-    def basic_nack(self, delivery_tag=None, multiple=False, requeue=True):
+    def basic_nack(self, delivery_tag=0, multiple=False, requeue=True):
         """This method allows a client to reject one or more incoming messages.
         It can be used to interrupt and cancel large incoming messages, or
         return untreatable messages to their original queue.
@@ -472,7 +472,7 @@ def basic_qos(self,
             spec.Basic.Qos(prefetch_size, prefetch_count, global_qos), callback,
             [spec.Basic.QosOk])
 
-    def basic_reject(self, delivery_tag, requeue=True):
+    def basic_reject(self, delivery_tag=0, requeue=True):
         """Reject an incoming message. This method allows a client to reject a
         message. It can be used to interrupt and cancel large incoming messages,
         or return untreatable messages to their original queue.