Fix linting issues

Author: rhpvorderman

src/isal/igzip.py

@@ -122,7 +122,7 @@ def __repr__(self):
     def flush(self, zlib_mode=isal_zlib.Z_SYNC_FLUSH):
         super().flush(zlib_mode)
 
-    def _write_gzip_header(self, compresslevel = _COMPRESS_LEVEL_TRADEOFF):
+    def _write_gzip_header(self, compresslevel=_COMPRESS_LEVEL_TRADEOFF):
         # Determine what xfl flag is written for the compression level.
         # Equate the fast level to gzip level 1. All the other levels are
         # medium.

tests/test_gzip_compliance.py

@@ -28,7 +28,7 @@
 from subprocess import PIPE, Popen
 from test import support
 from test.support import _4G, bigmemtest
-from test.support.script_helper import assert_python_ok, assert_python_failure
+from test.support.script_helper import assert_python_failure, assert_python_ok
 
 from isal import igzip
 

tests/test_zlib_compliance.py

@@ -11,16 +11,16 @@
 
 
 """
-import functools
-import os
-import unittest
-from test import support
 import binascii
 import copy
+import functools
+import os
 import pickle
 import random
 import sys
-from test.support import bigmemtest, _1G, _4G
+import unittest
+from test import support
+from test.support import _1G, _4G, bigmemtest
 
 import isal
 from isal import isal_zlib