Prefer dict literal syntax over dict() (#787)

* Prefer dict literal syntax over dict()

* An overlooked dict-constructor in transport/SQS.py

9 files changed, 53 insertions, 52 deletions

diff --git a/AUTHORS b/AUTHORS
index 5ffa4a09..df265337 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -83,6 +83,7 @@ Latitia M. Haskins <lhaskins@jetsonsys.com>
 Len Buckens <buckens.len@gmail.com>
 Lorenzo Mancini <lmancini@develer.com>
 Luyun Xie <2304310@qq.com>
+Mads Jensen <https://github.com/atombrella>
 Mahendra M <Mahendra_M@infosys.com>
 Marcin Lulek (ergo) <info@webreactor.eu>
 Mark Lavin <mlavin@caktusgroup.com>
diff --git a/kombu/simple.py b/kombu/simple.py
index 77177f75..eb0d82eb 100644
--- a/kombu/simple.py
+++ b/kombu/simple.py
@@ -144,8 +144,8 @@ class SimpleBuffer(SimpleQueue):
     """Simple API for ephemeral queues."""
 
     no_ack = True
-    queue_opts = dict(durable=False,
-                      auto_delete=True)
-    exchange_opts = dict(durable=False,
-                         delivery_mode='transient',
-                         auto_delete=True)
+    queue_opts = {'durable': False,
+                  'auto_delete': True}
+    exchange_opts = {'durable': False,
+                     'delivery_mode': 'transient',
+                     'auto_delete': True}
diff --git a/kombu/transport/SQS.py b/kombu/transport/SQS.py
index c1f4f52c..97b4a2dc 100644
--- a/kombu/transport/SQS.py
+++ b/kombu/transport/SQS.py
@@ -420,9 +420,9 @@ class Channel(virtual.Channel):
                 aws_secret_access_key=self.conninfo.password,
             )
             is_secure = self.is_secure if self.is_secure is not None else True
-            client_kwargs = dict(
-                use_ssl=is_secure
-            )
+            client_kwargs = {
+                'use_ssl': is_secure
+            }
             if self.endpoint_url is not None:
                 client_kwargs['endpoint_url'] = self.endpoint_url
             self._sqs = session.client('sqs', **client_kwargs)
diff --git a/kombu/transport/mongodb.py b/kombu/transport/mongodb.py
index 75372ab0..db1e1c5e 100644
--- a/kombu/transport/mongodb.py
+++ b/kombu/transport/mongodb.py
@@ -381,15 +381,15 @@ class Channel(virtual.Channel):
 
     def _create_broadcast_cursor(self, exchange, routing_key, pattern, queue):
         if pymongo.version_tuple >= (3, ):
-            query = dict(
-                filter={'queue': exchange},
-                cursor_type=CursorType.TAILABLE
-            )
+            query = {
+                'filter': {'queue': exchange},
+                'cursor_type': CursorType.TAILABLE,
+            }
         else:
-            query = dict(
-                query={'queue': exchange},
-                tailable=True
-            )
+            query = {
+                'query': {'queue': exchange},
+                'tailable': True,
+            }
 
         cursor = self.broadcast.find(**query)
         ret = self._broadcast_cursors[queue] = BroadcastCursor(cursor)
diff --git a/kombu/transport/virtual/base.py b/kombu/transport/virtual/base.py
index 75bca055..7f2c61ad 100644
--- a/kombu/transport/virtual/base.py
+++ b/kombu/transport/virtual/base.py
@@ -857,7 +857,7 @@ class Management(base.Management):
         self.channel = transport.client.channel()
 
     def get_bindings(self):
-        return [dict(destination=q, source=e, routing_key=r)
+        return [{'destination': q, 'source': e, 'routing_key': r}
                 for q, e, r in self.channel.list_bindings()]
 
     def close(self):
diff --git a/t/mocks.py b/t/mocks.py
index 8b4161b6..ef74974b 100644
--- a/t/mocks.py
+++ b/t/mocks.py
@@ -67,12 +67,12 @@ class Channel(base.StdChannel):
     def prepare_message(self, body, priority=0, content_type=None,
                         content_encoding=None, headers=None, properties={}):
         self._called('prepare_message')
-        return dict(body=body,
-                    headers=headers,
-                    properties=properties,
-                    priority=priority,
-                    content_type=content_type,
-                    content_encoding=content_encoding)
+        return {'body': body,
+                'headers': headers,
+                'properties': properties,
+                'priority': priority,
+                'content_type': content_type,
+                'content_encoding': content_encoding}
 
     def basic_publish(self, message, exchange='', routing_key='',
                       mandatory=False, immediate=False, **kwargs):
diff --git a/t/unit/test_connection.py b/t/unit/test_connection.py
index edeba2ad..df8d6c1d 100644
--- a/t/unit/test_connection.py
+++ b/t/unit/test_connection.py
@@ -65,38 +65,38 @@ class test_connection_utils:
 
     @pytest.mark.parametrize('url,expected', [
         ('amqp://user:pass@host:10000/vhost',
-         dict(userid='user', password='pass', hostname='host',
-              port=10000, virtual_host='vhost')),
+         {'userid': 'user', 'password': 'pass', 'hostname': 'host',
+          'port': 10000, 'virtual_host': 'vhost'}),
         ('amqp://user%61:%61pass@ho%61st:10000/v%2fhost',
-         dict(userid='usera', password='apass', hostname='hoast',
-              port=10000, virtual_host='v/host')),
+         {'userid': 'usera', 'password': 'apass', 'hostname': 'hoast',
+          'port': 10000, 'virtual_host': 'v/host'}),
         ('amqp://',
-         dict(userid='guest', password='guest', hostname='localhost',
-              port=5672, virtual_host='/')),
+         {'userid': 'guest', 'password': 'guest', 'hostname': 'localhost',
+          'port': 5672, 'virtual_host': '/'}),
         ('amqp://:@/',
-         dict(userid='guest', password='guest', hostname='localhost',
-              port=5672, virtual_host='/')),
+         {'userid': 'guest', 'password': 'guest', 'hostname': 'localhost',
+          'port': 5672, 'virtual_host': '/'}),
         ('amqp://user@/',
-         dict(userid='user', password='guest', hostname='localhost',
-              port=5672, virtual_host='/')),
+         {'userid': 'user', 'password': 'guest', 'hostname': 'localhost',
+          'port': 5672, 'virtual_host': '/'}),
         ('amqp://user:pass@/',
-         dict(userid='user', password='pass', hostname='localhost',
-              port=5672, virtual_host='/')),
+         {'userid': 'user', 'password': 'pass', 'hostname': 'localhost',
+          'port': 5672, 'virtual_host': '/'}),
         ('amqp://host',
-         dict(userid='guest', password='guest', hostname='host',
-              port=5672, virtual_host='/')),
+         {'userid': 'guest', 'password': 'guest', 'hostname': 'host',
+          'port': 5672, 'virtual_host': '/'}),
         ('amqp://:10000',
-         dict(userid='guest', password='guest', hostname='localhost',
-              port=10000, virtual_host='/')),
+         {'userid': 'guest', 'password': 'guest', 'hostname': 'localhost',
+          'port': 10000, 'virtual_host': '/'}),
         ('amqp:///vhost',
-         dict(userid='guest', password='guest', hostname='localhost',
-              port=5672, virtual_host='vhost')),
+         {'userid': 'guest', 'password': 'guest', 'hostname': 'localhost',
+          'port': 5672, 'virtual_host': 'vhost'}),
         ('amqp://host/',
-         dict(userid='guest', password='guest', hostname='host',
-              port=5672, virtual_host='/')),
+         {'userid': 'guest', 'password': 'guest', 'hostname': 'host',
+          'port': 5672, 'virtual_host': '/'}),
         ('amqp://host/%2f',
-         dict(userid='guest', password='guest', hostname='host',
-              port=5672, virtual_host='/')),
+         {'userid': 'guest', 'password': 'guest', 'hostname': 'host',
+          'port': 5672, 'virtual_host': '/'}),
     ])
     def test_rabbitmq_example_urls(self, url, expected):
         # see Appendix A of http://www.rabbitmq.com/uri-spec.html
diff --git a/t/unit/transport/virtual/test_base.py b/t/unit/transport/virtual/test_base.py
index 70727414..69c1eafe 100644
--- a/t/unit/transport/virtual/test_base.py
+++ b/t/unit/transport/virtual/test_base.py
@@ -553,7 +553,7 @@ class test_Transport:
         self.transport = client().transport
 
     def test_custom_polling_interval(self):
-        x = client(transport_options=dict(polling_interval=32.3))
+        x = client(transport_options={'polling_interval': 32.3})
         assert x.transport.polling_interval == 32.3
 
     def test_close_connection(self):
diff --git a/t/unit/transport/virtual/test_exchange.py b/t/unit/transport/virtual/test_exchange.py
index 93d48228..7b94e56c 100644
--- a/t/unit/transport/virtual/test_exchange.py
+++ b/t/unit/transport/virtual/test_exchange.py
@@ -145,12 +145,12 @@ class test_ExchangeType(ExchangeCase):
             'rFoo', None, 'qFoo',
         )
 
-    e1 = dict(
-        type='direct',
-        durable=True,
-        auto_delete=True,
-        arguments={},
-    )
+    e1 = {
+        'type': 'direct',
+        'durable': True,
+        'auto_delete': True,
+        'arguments': {},
+    }
     e2 = dict(e1, arguments={'expires': 3000})
 
     @pytest.mark.parametrize('ex,eq,name,type,durable,auto_delete,arguments', [