Be explicit with tuples for %s formatting

Fix #1633

26 files changed, 45 insertions, 45 deletions

diff --git a/kafka/admin/kafka.py b/kafka/admin/kafka.py
index 01db6a9..7aceea1 100644
--- a/kafka/admin/kafka.py
+++ b/kafka/admin/kafka.py
@@ -169,7 +169,7 @@ class KafkaAdmin(object):
         log.debug("Starting Kafka administration interface")
         extra_configs = set(configs).difference(self.DEFAULT_CONFIG)
         if extra_configs:
-            raise KafkaConfigurationError("Unrecognized configs: %s" % extra_configs)
+            raise KafkaConfigurationError("Unrecognized configs: %s" % (extra_configs,))
 
         self.config = copy.copy(self.DEFAULT_CONFIG)
         self.config.update(configs)
diff --git a/kafka/client.py b/kafka/client.py
index 789d4da..148cae0 100644
--- a/kafka/client.py
+++ b/kafka/client.py
@@ -174,7 +174,7 @@ class SimpleClient(object):
 
             return decoder_fn(future.value)
 
-        raise KafkaUnavailableError('All servers failed to process request: %s' % hosts)
+        raise KafkaUnavailableError('All servers failed to process request: %s' % (hosts,))
 
     def _payloads_by_broker(self, payloads):
         payloads_by_broker = collections.defaultdict(list)
diff --git a/kafka/client_async.py b/kafka/client_async.py
index bf395c5..cf57ef9 100644
--- a/kafka/client_async.py
+++ b/kafka/client_async.py
@@ -355,7 +355,7 @@ class KafkaClient(object):
             conn = self._conns.get(node_id)
 
             if conn is None:
-                assert broker, 'Broker id %s not in current metadata' % node_id
+                assert broker, 'Broker id %s not in current metadata' % (node_id,)
 
                 log.debug("Initiating connection to node %s at %s:%s",
                           node_id, broker.host, broker.port)
diff --git a/kafka/consumer/fetcher.py b/kafka/consumer/fetcher.py
index 7d58b7c..3638831 100644
--- a/kafka/consumer/fetcher.py
+++ b/kafka/consumer/fetcher.py
@@ -298,7 +298,7 @@ class Fetcher(six.Iterator):
             remaining_ms = timeout_ms - elapsed_ms
 
         raise Errors.KafkaTimeoutError(
-            "Failed to get offsets by timestamps in %s ms" % timeout_ms)
+            "Failed to get offsets by timestamps in %s ms" % (timeout_ms,))
 
     def fetched_records(self, max_records=None):
         """Returns previously fetched records and updates consumed offsets.
@@ -911,7 +911,7 @@ class FetchResponseMetricAggregator(object):
 class FetchManagerMetrics(object):
     def __init__(self, metrics, prefix):
         self.metrics = metrics
-        self.group_name = '%s-fetch-manager-metrics' % prefix
+        self.group_name = '%s-fetch-manager-metrics' % (prefix,)
 
         self.bytes_fetched = metrics.sensor('bytes-fetched')
         self.bytes_fetched.add(metrics.metric_name('fetch-size-avg', self.group_name,
@@ -955,15 +955,15 @@ class FetchManagerMetrics(object):
             bytes_fetched = self.metrics.sensor(name)
             bytes_fetched.add(self.metrics.metric_name('fetch-size-avg',
                     self.group_name,
-                    'The average number of bytes fetched per request for topic %s' % topic,
+                    'The average number of bytes fetched per request for topic %s' % (topic,),
                     metric_tags), Avg())
             bytes_fetched.add(self.metrics.metric_name('fetch-size-max',
                     self.group_name,
-                    'The maximum number of bytes fetched per request for topic %s' % topic,
+                    'The maximum number of bytes fetched per request for topic %s' % (topic,),
                     metric_tags), Max())
             bytes_fetched.add(self.metrics.metric_name('bytes-consumed-rate',
                     self.group_name,
-                    'The average number of bytes consumed per second for topic %s' % topic,
+                    'The average number of bytes consumed per second for topic %s' % (topic,),
                     metric_tags), Rate())
         bytes_fetched.record(num_bytes)
 
@@ -976,10 +976,10 @@ class FetchManagerMetrics(object):
             records_fetched = self.metrics.sensor(name)
             records_fetched.add(self.metrics.metric_name('records-per-request-avg',
                     self.group_name,
-                    'The average number of records in each request for topic %s' % topic,
+                    'The average number of records in each request for topic %s' % (topic,),
                     metric_tags), Avg())
             records_fetched.add(self.metrics.metric_name('records-consumed-rate',
                     self.group_name,
-                    'The average number of records consumed per second for topic %s' % topic,
+                    'The average number of records consumed per second for topic %s' % (topic,),
                     metric_tags), Rate())
         records_fetched.record(num_records)
diff --git a/kafka/consumer/group.py b/kafka/consumer/group.py
index 279cce0..8727de7 100644
--- a/kafka/consumer/group.py
+++ b/kafka/consumer/group.py
@@ -309,7 +309,7 @@ class KafkaConsumer(six.Iterator):
         # Only check for extra config keys in top-level class
         extra_configs = set(configs).difference(self.DEFAULT_CONFIG)
         if extra_configs:
-            raise KafkaConfigurationError("Unrecognized configs: %s" % extra_configs)
+            raise KafkaConfigurationError("Unrecognized configs: %s" % (extra_configs,))
 
         self.config = copy.copy(self.DEFAULT_CONFIG)
         self.config.update(configs)
diff --git a/kafka/consumer/simple.py b/kafka/consumer/simple.py
index b60a586..a6a64a5 100644
--- a/kafka/consumer/simple.py
+++ b/kafka/consumer/simple.py
@@ -247,7 +247,7 @@ class SimpleConsumer(Consumer):
                 self.offsets[resp.partition] = \
                     resp.offsets[0] + deltas[resp.partition]
         else:
-            raise ValueError('Unexpected value for `whence`, %d' % whence)
+            raise ValueError('Unexpected value for `whence`, %d' % (whence,))
 
         # Reset queue and fetch offsets since they are invalid
         self.fetch_offsets = self.offsets.copy()
diff --git a/kafka/consumer/subscription_state.py b/kafka/consumer/subscription_state.py
index 10d722e..4b0b275 100644
--- a/kafka/consumer/subscription_state.py
+++ b/kafka/consumer/subscription_state.py
@@ -247,7 +247,7 @@ class SubscriptionState(object):
 
         for tp in assignments:
             if tp.topic not in self.subscription:
-                raise ValueError("Assigned partition %s for non-subscribed topic." % str(tp))
+                raise ValueError("Assigned partition %s for non-subscribed topic." % (tp,))
 
         # after rebalancing, we always reinitialize the assignment state
         self.assignment.clear()
diff --git a/kafka/coordinator/consumer.py b/kafka/coordinator/consumer.py
index 647a6b5..14eee0f 100644
--- a/kafka/coordinator/consumer.py
+++ b/kafka/coordinator/consumer.py
@@ -216,7 +216,7 @@ class ConsumerCoordinator(BaseCoordinator):
             self._assignment_snapshot = None
 
         assignor = self._lookup_assignor(protocol)
-        assert assignor, 'Coordinator selected invalid assignment protocol: %s' % protocol
+        assert assignor, 'Coordinator selected invalid assignment protocol: %s' % (protocol,)
 
         assignment = ConsumerProtocol.ASSIGNMENT.decode(member_assignment_bytes)
 
@@ -297,7 +297,7 @@ class ConsumerCoordinator(BaseCoordinator):
 
     def _perform_assignment(self, leader_id, assignment_strategy, members):
         assignor = self._lookup_assignor(assignment_strategy)
-        assert assignor, 'Invalid assignment protocol: %s' % assignment_strategy
+        assert assignor, 'Invalid assignment protocol: %s' % (assignment_strategy,)
         member_metadata = {}
         all_subscribed_topics = set()
         for member_id, metadata_bytes in members:
@@ -804,7 +804,7 @@ class ConsumerCoordinator(BaseCoordinator):
 class ConsumerCoordinatorMetrics(object):
     def __init__(self, metrics, metric_group_prefix, subscription):
         self.metrics = metrics
-        self.metric_group_name = '%s-coordinator-metrics' % metric_group_prefix
+        self.metric_group_name = '%s-coordinator-metrics' % (metric_group_prefix,)
 
         self.commit_latency = metrics.sensor('commit-latency')
         self.commit_latency.add(metrics.metric_name(
diff --git a/kafka/metrics/metrics.py b/kafka/metrics/metrics.py
index f2e99ed..2c53488 100644
--- a/kafka/metrics/metrics.py
+++ b/kafka/metrics/metrics.py
@@ -225,7 +225,7 @@ class Metrics(object):
         with self._lock:
             if metric.metric_name in self.metrics:
                 raise ValueError('A metric named "%s" already exists, cannot'
-                                 ' register another one.' % metric.metric_name)
+                                 ' register another one.' % (metric.metric_name,))
             self.metrics[metric.metric_name] = metric
             for reporter in self._reporters:
                 reporter.metric_change(metric)
diff --git a/kafka/metrics/stats/percentiles.py b/kafka/metrics/stats/percentiles.py
index b55c5ac..6d702e8 100644
--- a/kafka/metrics/stats/percentiles.py
+++ b/kafka/metrics/stats/percentiles.py
@@ -27,7 +27,7 @@ class Percentiles(AbstractSampledStat, AbstractCompoundStat):
                                  ' to be 0.0.')
             self.bin_scheme = Histogram.LinearBinScheme(self._buckets, max_val)
         else:
-            ValueError('Unknown bucket type: %s' % bucketing)
+            ValueError('Unknown bucket type: %s' % (bucketing,))
 
     def stats(self):
         measurables = []
diff --git a/kafka/metrics/stats/rate.py b/kafka/metrics/stats/rate.py
index 810c543..68393fb 100644
--- a/kafka/metrics/stats/rate.py
+++ b/kafka/metrics/stats/rate.py
@@ -101,7 +101,7 @@ class Rate(AbstractMeasurableStat):
         elif self._unit == TimeUnit.DAYS:
             return time_ms / (24.0 * 60.0 * 60.0 * 1000.0)
         else:
-            raise ValueError('Unknown unit: %s' % self._unit)
+            raise ValueError('Unknown unit: %s' % (self._unit,))
 
 
 class SampledTotal(AbstractSampledStat):
diff --git a/kafka/metrics/stats/sensor.py b/kafka/metrics/stats/sensor.py
index 73a4665..571723f 100644
--- a/kafka/metrics/stats/sensor.py
+++ b/kafka/metrics/stats/sensor.py
@@ -35,7 +35,7 @@ class Sensor(object):
         """Validate that this sensor doesn't end up referencing itself."""
         if self in sensors:
             raise ValueError('Circular dependency in sensors: %s is its own'
-                             'parent.' % self.name)
+                             'parent.' % (self.name,))
         sensors.add(self)
         for parent in self._parents:
             parent._check_forest(sensors)
diff --git a/kafka/producer/base.py b/kafka/producer/base.py
index 1da74c8..b323966 100644
--- a/kafka/producer/base.py
+++ b/kafka/producer/base.py
@@ -316,7 +316,7 @@ class Producer(object):
         if codec is None:
             codec = CODEC_NONE
         elif codec not in ALL_CODECS:
-            raise UnsupportedCodecError("Codec 0x%02x unsupported" % codec)
+            raise UnsupportedCodecError("Codec 0x%02x unsupported" % (codec,))
 
         self.codec = codec
         self.codec_compresslevel = codec_compresslevel
@@ -419,7 +419,7 @@ class Producer(object):
                     raise AsyncProducerQueueFull(
                         msg[idx:],
                         'Producer async queue overfilled. '
-                        'Current queue size %d.' % self.queue.qsize())
+                        'Current queue size %d.' % (self.queue.qsize(),))
             resp = []
         else:
             messages = create_message_set([(m, key) for m in msg], self.codec, key, self.codec_compresslevel)
diff --git a/kafka/producer/future.py b/kafka/producer/future.py
index 1c5d6d7..f67db09 100644
--- a/kafka/producer/future.py
+++ b/kafka/producer/future.py
@@ -59,7 +59,7 @@ class FutureRecordMetadata(Future):
     def get(self, timeout=None):
         if not self.is_done and not self._produce_future.wait(timeout):
             raise Errors.KafkaTimeoutError(
-                "Timeout after waiting for %s secs." % timeout)
+                "Timeout after waiting for %s secs." % (timeout,))
         assert self.is_done
         if self.failed():
             raise self.exception # pylint: disable-msg=raising-bad-type
diff --git a/kafka/producer/kafka.py b/kafka/producer/kafka.py
index 45bb058..685c3f9 100644
--- a/kafka/producer/kafka.py
+++ b/kafka/producer/kafka.py
@@ -340,11 +340,11 @@ class KafkaProducer(object):
                 self.config[key] = configs.pop(key)
 
         # Only check for extra config keys in top-level class
-        assert not configs, 'Unrecognized configs: %s' % configs
+        assert not configs, 'Unrecognized configs: %s' % (configs,)
 
         if self.config['client_id'] is None:
             self.config['client_id'] = 'kafka-python-producer-%s' % \
-                                       PRODUCER_CLIENT_ID_SEQUENCE.increment()
+                                       (PRODUCER_CLIENT_ID_SEQUENCE.increment(),)
 
         if self.config['acks'] == 'all':
             self.config['acks'] = -1
@@ -633,12 +633,12 @@ class KafkaProducer(object):
             raise Errors.MessageSizeTooLargeError(
                 "The message is %d bytes when serialized which is larger than"
                 " the maximum request size you have configured with the"
-                " max_request_size configuration" % size)
+                " max_request_size configuration" % (size,))
         if size > self.config['buffer_memory']:
             raise Errors.MessageSizeTooLargeError(
                 "The message is %d bytes when serialized which is larger than"
                 " the total memory buffer you have configured with the"
-                " buffer_memory configuration." % size)
+                " buffer_memory configuration." % (size,))
 
     def _wait_on_metadata(self, topic, max_wait):
         """
@@ -679,7 +679,7 @@ class KafkaProducer(object):
             elapsed = time.time() - begin
             if not metadata_event.is_set():
                 raise Errors.KafkaTimeoutError(
-                    "Failed to update metadata after %.1f secs." % max_wait)
+                    "Failed to update metadata after %.1f secs." % (max_wait,))
             elif topic in self._metadata.unauthorized_topics:
                 raise Errors.TopicAuthorizationFailedError(topic)
             else:
diff --git a/kafka/producer/keyed.py b/kafka/producer/keyed.py
index 62bb733..3ba9216 100644
--- a/kafka/producer/keyed.py
+++ b/kafka/producer/keyed.py
@@ -46,4 +46,4 @@ class KeyedProducer(Producer):
         return self.send_messages(topic, key, msg)
 
     def __repr__(self):
-        return '<KeyedProducer batch=%s>' % self.async_send
+        return '<KeyedProducer batch=%s>' % (self.async_send,)
diff --git a/kafka/producer/record_accumulator.py b/kafka/producer/record_accumulator.py
index 728bf18..eeb928d 100644
--- a/kafka/producer/record_accumulator.py
+++ b/kafka/producer/record_accumulator.py
@@ -102,11 +102,11 @@ class ProducerBatch(object):
 
         error = None
         if not self.in_retry() and is_full and timeout < since_append:
-            error = "%d seconds have passed since last append" % since_append
+            error = "%d seconds have passed since last append" % (since_append,)
         elif not self.in_retry() and timeout < since_ready:
-            error = "%d seconds have passed since batch creation plus linger time" % since_ready
+            error = "%d seconds have passed since batch creation plus linger time" % (since_ready,)
         elif self.in_retry() and timeout < since_backoff:
-            error = "%d seconds have passed since last attempt plus backoff time" % since_backoff
+            error = "%d seconds have passed since last attempt plus backoff time" % (since_backoff,)
 
         if error:
             self.records.close()
diff --git a/kafka/producer/simple.py b/kafka/producer/simple.py
index e06e659..f334a49 100644
--- a/kafka/producer/simple.py
+++ b/kafka/producer/simple.py
@@ -51,4 +51,4 @@ class SimpleProducer(Producer):
         )
 
     def __repr__(self):
-        return '<SimpleProducer batch=%s>' % self.async_send
+        return '<SimpleProducer batch=%s>' % (self.async_send,)
diff --git a/kafka/protocol/legacy.py b/kafka/protocol/legacy.py
index 7dd2580..2e8f5bc 100644
--- a/kafka/protocol/legacy.py
+++ b/kafka/protocol/legacy.py
@@ -471,4 +471,4 @@ def create_message_set(messages, codec=CODEC_NONE, key=None, compresslevel=None)
     elif codec == CODEC_SNAPPY:
         return [create_snappy_message(messages, key)]
     else:
-        raise UnsupportedCodecError("Codec 0x%02x unsupported" % codec)
+        raise UnsupportedCodecError("Codec 0x%02x unsupported" % (codec,))
diff --git a/kafka/protocol/message.py b/kafka/protocol/message.py
index 19dcbd9..31527bf 100644
--- a/kafka/protocol/message.py
+++ b/kafka/protocol/message.py
@@ -77,7 +77,7 @@ class Message(Struct):
         elif version == 0:
             fields = (self.crc, self.magic, self.attributes, self.key, self.value)
         else:
-            raise ValueError('Unrecognized message version: %s' % version)
+            raise ValueError('Unrecognized message version: %s' % (version,))
         message = Message.SCHEMAS[version].encode(fields)
         if not recalc_crc:
             return message
@@ -143,7 +143,7 @@ class Message(Struct):
 
 class PartialMessage(bytes):
     def __repr__(self):
-        return 'PartialMessage(%s)' % self
+        return 'PartialMessage(%s)' % (self,)
 
 
 class MessageSet(AbstractType):
diff --git a/kafka/protocol/parser.py b/kafka/protocol/parser.py
index 4d77bb3..a99b3ae 100644
--- a/kafka/protocol/parser.py
+++ b/kafka/protocol/parser.py
@@ -136,7 +136,7 @@ class KafkaProtocol(object):
             raise Errors.CorrelationIdError(
                 'No in-flight-request found for server response'
                 ' with correlation ID %d'
-                % recv_correlation_id)
+                % (recv_correlation_id,))
 
         (correlation_id, request) = self.in_flight_requests.popleft()
 
diff --git a/kafka/record/legacy_records.py b/kafka/record/legacy_records.py
index 1bdba81..bb6c21c 100644
--- a/kafka/record/legacy_records.py
+++ b/kafka/record/legacy_records.py
@@ -254,7 +254,7 @@ class LegacyRecordBatch(ABCRecordBatch, LegacyRecordBase):
                 # There should only ever be a single layer of compression
                 assert not attrs & self.CODEC_MASK, (
                     'MessageSet at offset %d appears double-compressed. This '
-                    'should not happen -- check your producers!' % offset)
+                    'should not happen -- check your producers!' % (offset,))
 
                 # When magic value is greater than 0, the timestamp
                 # of a compressed message depends on the
diff --git a/test/fixtures.py b/test/fixtures.py
index 76e3071..6f7fc3f 100644
--- a/test/fixtures.py
+++ b/test/fixtures.py
@@ -102,7 +102,7 @@ class Fixture(object):
     def kafka_run_class_env(self):
         env = os.environ.copy()
         env['KAFKA_LOG4J_OPTS'] = "-Dlog4j.configuration=file:%s" % \
-                                  self.test_resource("log4j.properties")
+                                  (self.test_resource("log4j.properties"),)
         return env
 
     @classmethod
@@ -110,7 +110,7 @@ class Fixture(object):
         log.info('Rendering %s from template %s', target_file.strpath, source_file)
         with open(source_file, "r") as handle:
             template = handle.read()
-            assert len(template) > 0, 'Empty template %s' % source_file
+            assert len(template) > 0, 'Empty template %s' % (source_file,)
         with open(target_file.strpath, "w") as handle:
             handle.write(template.format(**binding))
             handle.flush()
@@ -257,7 +257,7 @@ class KafkaFixture(Fixture):
         # TODO: checking for port connection would be better than scanning logs
         # until then, we need the pattern to work across all supported broker versions
         # The logging format changed slightly in 1.0.0
-        self.start_pattern = r"\[Kafka ?Server (id=)?%d\],? started" % broker_id
+        self.start_pattern = r"\[Kafka ?Server (id=)?%d\],? started" % (broker_id,)
 
         self.zookeeper = zookeeper
         self.zk_chroot = zk_chroot
@@ -291,7 +291,7 @@ class KafkaFixture(Fixture):
                                          "%s:%d" % (self.zookeeper.host,
                                                     self.zookeeper.port),
                                          "create",
-                                         "/%s" % self.zk_chroot,
+                                         "/%s" % (self.zk_chroot,),
                                          "kafka-python")
         env = self.kafka_run_class_env()
         proc = subprocess.Popen(args, env=env, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
diff --git a/test/test_metrics.py b/test/test_metrics.py
index 8d35f55..308ea58 100644
--- a/test/test_metrics.py
+++ b/test/test_metrics.py
@@ -469,7 +469,7 @@ def test_reporter(metrics):
 
     for key in list(expected.keys()):
         metrics = expected.pop(key)
-        expected['foo.%s' % key] = metrics
+        expected['foo.%s' % (key,)] = metrics
     assert expected == foo_reporter.snapshot()
 
 
diff --git a/test/test_producer.py b/test/test_producer.py
index 16da618..d6b94e8 100644
--- a/test/test_producer.py
+++ b/test/test_producer.py
@@ -65,7 +65,7 @@ def test_end_to_end(kafka_broker, compression):
         except StopIteration:
             break
 
-    assert msgs == set(['msg %d' % i for i in range(messages)])
+    assert msgs == set(['msg %d' % (i,) for i in range(messages)])
     consumer.close()
 
 
diff --git a/test/testutil.py b/test/testutil.py
index 6f6cafb..a8227cf 100644
--- a/test/testutil.py
+++ b/test/testutil.py
@@ -32,7 +32,7 @@ def kafka_versions(*versions):
             op_str = s[0:2] # >= <=
             v_str = s[2:]
         else:
-            raise ValueError('Unrecognized kafka version / operator: %s' % s)
+            raise ValueError('Unrecognized kafka version / operator: %s' % (s,))
 
         op_map = {
             '=': operator.eq,