diff --git a/lang/py/avro/datafile.py b/lang/py/avro/datafile.py
index d39a91131e3..0f002cee1b5 100644
--- a/lang/py/avro/datafile.py
+++ b/lang/py/avro/datafile.py
@@ -26,7 +26,7 @@
 import json
 import warnings
 from types import TracebackType
-from typing import IO, AnyStr, BinaryIO, MutableMapping, Optional, Type, cast
+from typing import IO, AnyStr, MutableMapping, Optional, Type, cast
 
 import avro.codecs
 import avro.errors
diff --git a/lang/py/avro/io.py b/lang/py/avro/io.py
index 7b5576697eb..a57a353447f 100644
--- a/lang/py/avro/io.py
+++ b/lang/py/avro/io.py
@@ -89,17 +89,7 @@
 import decimal
 import struct
 import warnings
-from typing import (
-    IO,
-    Deque,
-    Generator,
-    Iterable,
-    List,
-    Mapping,
-    Optional,
-    Sequence,
-    Union,
-)
+from typing import IO, Generator, Iterable, List, Mapping, Optional, Sequence, Union
 
 import avro.constants
 import avro.errors
@@ -435,7 +425,6 @@ def write_null(self, datum: None) -> None:
         """
         null is written as zero bytes
         """
-        pass
 
     def write_boolean(self, datum: bool) -> None:
         """
@@ -810,7 +799,7 @@ def read_array(self, writers_schema: avro.schema.ArraySchema, readers_schema: av
         while block_count != 0:
             if block_count < 0:
                 block_count = -block_count
-                block_size = decoder.read_long()
+                decoder.read_long()
             for i in range(block_count):
                 read_items.append(self.read_data(writers_schema.items, readers_schema.items, decoder))
             block_count = decoder.read_long()
@@ -847,7 +836,7 @@ def read_map(self, writers_schema: avro.schema.MapSchema, readers_schema: avro.s
         while block_count != 0:
             if block_count < 0:
                 block_count = -block_count
-                block_size = decoder.read_long()
+                decoder.read_long()
             for i in range(block_count):
                 key = decoder.read_utf8()
                 read_items[key] = self.read_data(writers_schema.values, readers_schema.values, decoder)
diff --git a/lang/py/avro/ipc.py b/lang/py/avro/ipc.py
index 7ab6ea497ae..7a5a5831f08 100644
--- a/lang/py/avro/ipc.py
+++ b/lang/py/avro/ipc.py
@@ -199,7 +199,7 @@ def read_call_response(self, message_name, decoder):
               the error, serialized per the message's error union schema.
         """
         # response metadata
-        response_metadata = META_READER.read(decoder)
+        META_READER.read(decoder)
 
         # remote response schema
         remote_message_schema = self.remote_protocol.messages.get(message_name)
@@ -288,7 +288,7 @@ def respond(self, call_request):
                 return buffer_writer.getvalue()
 
             # read request using remote protocol
-            request_metadata = META_READER.read(buffer_decoder)
+            META_READER.read(buffer_decoder)
             remote_message_name = buffer_decoder.read_utf8()
 
             # get remote and local request schemas so we can do
@@ -364,9 +364,8 @@ def process_handshake(self, decoder, encoder):
 
     def invoke(self, local_message, request):
         """
-        Aactual work done by server: cf. handler in thrift.
+        Actual work done by server: cf. handler in thrift.
         """
-        pass
 
     def read_request(self, writers_schema, readers_schema, decoder):
         datum_reader = avro.io.DatumReader(writers_schema, readers_schema)
diff --git a/lang/py/avro/test/test_schema.py b/lang/py/avro/test/test_schema.py
index 668ca8258f2..056244cdacc 100644
--- a/lang/py/avro/test/test_schema.py
+++ b/lang/py/avro/test/test_schema.py
@@ -58,7 +58,7 @@ class InvalidTestSchema(TestSchema):
     valid = False
 
 
-PRIMITIVE_EXAMPLES = [InvalidTestSchema('"True"')]  # type: List[TestSchema]
+PRIMITIVE_EXAMPLES: List[TestSchema] = [InvalidTestSchema('"True"')]
 PRIMITIVE_EXAMPLES.append(InvalidTestSchema("True"))
 PRIMITIVE_EXAMPLES.append(InvalidTestSchema('{"no_type": "test"}'))
 PRIMITIVE_EXAMPLES.append(InvalidTestSchema('{"type": "panther"}'))
diff --git a/lang/py/avro/test/test_tether_task.py b/lang/py/avro/test/test_tether_task.py
index 5a4e2b26dbe..35be22437dd 100644
--- a/lang/py/avro/test/test_tether_task.py
+++ b/lang/py/avro/test/test_tether_task.py
@@ -18,7 +18,6 @@
 # limitations under the License.
 
 import io
-import os
 import subprocess
 import sys
 import time
diff --git a/lang/py/avro/test/test_tether_task_runner.py b/lang/py/avro/test/test_tether_task_runner.py
index 7696161d3c9..a8726526851 100644
--- a/lang/py/avro/test/test_tether_task_runner.py
+++ b/lang/py/avro/test/test_tether_task_runner.py
@@ -19,7 +19,6 @@
 
 import io
 import logging
-import os
 import subprocess
 import sys
 import time
@@ -47,7 +46,7 @@ def test1(self):
 
             pyfile = avro.test.mock_tether_parent.__file__
             proc = subprocess.Popen([sys.executable, pyfile, "start_server", f"{parent_port}"])
-            input_port = avro.tether.util.find_port()
+            avro.tether.util.find_port()
 
             print(f"Mock server started process pid={proc.pid}")
             # Possible race condition? open tries to connect to the subprocess before the subprocess is fully started
diff --git a/lang/py/avro/tether/__init__.py b/lang/py/avro/tether/__init__.py
index 4875581f292..68df39ec4d4 100644
--- a/lang/py/avro/tether/__init__.py
+++ b/lang/py/avro/tether/__init__.py
@@ -27,3 +27,13 @@
 )
 from avro.tether.tether_task_runner import TaskRunner
 from avro.tether.util import find_port
+
+__all__ = (
+    "HTTPRequestor",
+    "TaskRunner",
+    "TaskType",
+    "TetherTask",
+    "find_port",
+    "inputProtocol",
+    "outputProtocol",
+)
diff --git a/lang/py/avro/tether/tether_task.py b/lang/py/avro/tether/tether_task.py
index c521fa56b4c..6caac6abe90 100644
--- a/lang/py/avro/tether/tether_task.py
+++ b/lang/py/avro/tether/tether_task.py
@@ -285,7 +285,7 @@ def configure(self, taskType, inSchemaText, outSchemaText):
 
         try:
             inSchema = avro.schema.parse(inSchemaText)
-            outSchema = avro.schema.parse(outSchemaText)
+            avro.schema.parse(outSchemaText)
 
             if taskType == TaskType.MAP:
                 self.inReader = avro.io.DatumReader(writers_schema=inSchema, readers_schema=self.inschema)
@@ -299,7 +299,7 @@ def configure(self, taskType, inSchemaText, outSchemaText):
                 # determine which fields in the input record are they keys for the reducer
                 self._red_fkeys = [f.name for f in self.midschema.fields if not (f.order == "ignore")]
 
-        except Exception as e:
+        except Exception:
             estr = traceback.format_exc()
             self.fail(estr)
 
@@ -345,7 +345,7 @@ def input(self, data, count):
                         self.reduceFlush(prev, self.outCollector)
                     self.reduce(self.midRecord, self.outCollector)
 
-        except Exception as e:
+        except Exception:
             estr = traceback.format_exc()
             self.log.warning("failing: %s", estr)
             self.fail(estr)
@@ -357,7 +357,7 @@ def complete(self):
         if (self.taskType == TaskType.REDUCE) and not (self.midRecord is None):
             try:
                 self.reduceFlush(self.midRecord, self.outCollector)
-            except Exception as e:
+            except Exception:
                 estr = traceback.format_exc()
                 self.log.warning("failing: %s", estr)
                 self.fail(estr)
@@ -430,7 +430,7 @@ def fail(self, message):
 
         try:
             self.outputClient.request("fail", {"message": message})
-        except Exception as e:
+        except Exception:
             self.log.exception("TetherTask.fail: an exception occured while trying to send the fail message to the output server.")
 
         self.close()
@@ -441,7 +441,7 @@ def close(self):
             try:
                 self.clienTransciever.close()
 
-            except Exception as e:
+            except Exception:
                 # ignore exceptions
                 pass
 
diff --git a/lang/py/avro/tether/tether_task_runner.py b/lang/py/avro/tether/tether_task_runner.py
index c1533b33353..410f6c00e4c 100644
--- a/lang/py/avro/tether/tether_task_runner.py
+++ b/lang/py/avro/tether/tether_task_runner.py
@@ -66,7 +66,7 @@ def invoke(self, message, request):
                 self.log.info("TetherTaskRunner: Received partitions")
                 try:
                     self.task.partitions = request["partitions"]
-                except Exception as e:
+                except Exception:
                     self.log.error("Exception occured while processing the partitions message: Message:\n%s", traceback.format_exc())
                     raise
             elif message.name == "input":
diff --git a/lang/py/avro/utils.py b/lang/py/avro/utils.py
index 76d8f6ec293..32e7f5aa36a 100644
--- a/lang/py/avro/utils.py
+++ b/lang/py/avro/utils.py
@@ -36,3 +36,5 @@ def _randbytes(n: int) -> bytes:
 
 
 randbytes = getattr(random, "randbytes", _randbytes)
+
+__all__ = ("randbytes", "TypedDict")
diff --git a/lang/py/setup.py b/lang/py/setup.py
index dee0e7f2ee9..d68073a7b6d 100755
--- a/lang/py/setup.py
+++ b/lang/py/setup.py
@@ -19,9 +19,7 @@
 
 
 import distutils.errors
-import glob
 import os
-import subprocess
 
 import setuptools  # type: ignore