use isort style import sorting

setup.py

@@ -1,6 +1,7 @@
 #!/usr/bin/env python3
 
 import os
+
 import setuptools
 
 package_name = "snallygaster"

tests/test_codingstyle.py

@@ -1,6 +1,6 @@
-import unittest
-import subprocess
 import glob
+import subprocess
+import unittest
 
 
 class TestCodingstyle(unittest.TestCase):

tests/test_docs.py

@@ -1,5 +1,5 @@
-import unittest
 import re
+import unittest
 
 
 class TestCodingstyle(unittest.TestCase):

tests/test_scan_testdata.py

@@ -1,10 +1,10 @@
-import unittest
-import subprocess
-import os
-import tempfile
 import http.server
+import os
 import ssl
+import subprocess
+import tempfile
 import threading
+import unittest
 
 TESTDATA_REPO = "https://github.com/hannob/snallygaster-testdata"