Cleanup code and pyproject (#608)

* use isort
* fallback: use BytesIO instead of StringIO. We had dropped Python 2
already.

test/test_buffer.py

@@ -1,6 +1,6 @@
 from pytest import raises
 
-from msgpack import packb, unpackb, Packer
+from msgpack import Packer, packb, unpackb
 
 
 def test_unpack_buffer():

test/test_except.py

@@ -1,10 +1,11 @@
 #!/usr/bin/env python
 
-from pytest import raises
-from msgpack import packb, unpackb, Unpacker, FormatError, StackError, OutOfData
-
 import datetime
 
+from pytest import raises
+
+from msgpack import FormatError, OutOfData, StackError, Unpacker, packb, unpackb
+
 
 class DummyException(Exception):
     pass

test/test_extension.py

@@ -1,4 +1,5 @@
 import array
+
 import msgpack
 from msgpack import ExtType
 

test/test_limits.py

@@ -2,14 +2,14 @@
 import pytest
 
 from msgpack import (
-    packb,
-    unpackb,
-    Packer,
-    Unpacker,
     ExtType,
+    Packer,
     PackOverflowError,
     PackValueError,
+    Unpacker,
     UnpackValueError,
+    packb,
+    unpackb,
 )
 
 

test/test_memoryview.py

@@ -1,6 +1,7 @@
 #!/usr/bin/env python
 
 from array import array
+
 from msgpack import packb, unpackb
 
 

test/test_newspec.py

@@ -1,4 +1,4 @@
-from msgpack import packb, unpackb, ExtType
+from msgpack import ExtType, packb, unpackb
 
 
 def test_str8():

test/test_obj.py

@@ -1,6 +1,7 @@
 #!/usr/bin/env python
 
 from pytest import raises
+
 from msgpack import packb, unpackb
 
 

test/test_pack.py

@@ -1,12 +1,12 @@
 #!/usr/bin/env python
 
+import struct
 from collections import OrderedDict
 from io import BytesIO
-import struct
 
 import pytest
 
-from msgpack import packb, unpackb, Unpacker, Packer
+from msgpack import Packer, Unpacker, packb, unpackb
 
 
 def check(data, use_list=False):

test/test_read_size.py

@@ -1,6 +1,6 @@
 """Test Unpacker's read_array_header and read_map_header methods"""
 
-from msgpack import packb, Unpacker, OutOfData
+from msgpack import OutOfData, Unpacker, packb
 
 UnexpectedTypeException = ValueError
 

test/test_seq.py

@@ -1,8 +1,8 @@
-#!/usr/bin/env python
-
+# ruff: noqa: E501
+# ignore line length limit for long comments
 import io
-import msgpack
 
+import msgpack
 
 binarydata = bytes(bytearray(range(256)))
 

test/test_sequnpack.py

@@ -1,10 +1,11 @@
 #!/usr/bin/env python
 import io
-from msgpack import Unpacker, BufferFull
-from msgpack import pack, packb
-from msgpack.exceptions import OutOfData
+
 from pytest import raises
 
+from msgpack import BufferFull, Unpacker, pack, packb
+from msgpack.exceptions import OutOfData
+
 
 def test_partialdata():
     unpacker = Unpacker()

test/test_stricttype.py

@@ -1,5 +1,6 @@
 from collections import namedtuple
-from msgpack import packb, unpackb, ExtType
+
+from msgpack import ExtType, packb, unpackb
 
 
 def test_namedtuple():

test/test_subtype.py

@@ -1,8 +1,9 @@
 #!/usr/bin/env python
 
-from msgpack import packb
 from collections import namedtuple
 
+from msgpack import packb
+
 
 class MyList(list):
     pass

test/test_timestamp.py

@@ -1,5 +1,7 @@
-import pytest
 import datetime
+
+import pytest
+
 import msgpack
 from msgpack.ext import Timestamp
 

test/test_unpack.py

@@ -1,12 +1,9 @@
-from io import BytesIO
 import sys
-from msgpack import Unpacker, packb, OutOfData, ExtType
-from pytest import raises, mark
+from io import BytesIO
 
-try:
-    from itertools import izip as zip
-except ImportError:
-    pass
+from pytest import mark, raises
+
+from msgpack import ExtType, OutOfData, Unpacker, packb
 
 
 def test_unpack_array_header_from_file():