Added flake8 configuration.

setup.cfg

@@ -0,0 +1,11 @@
+
+[flake8]
+# https://flake8.readthedocs.org/en/latest/
+exclude=\
+    */.eggs/*,\
+    */build/*,\
+    .tox/*,\
+    local/*,\
+    venv*
+max-complexity = 25
+max-line-length = 119

setup.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 import io
 
-from setuptools import find_packages, setup, Extension
+from setuptools import setup, Extension
 
 
 with io.open('README.rst', encoding='utf8') as readme:

tests/__init__.py

@@ -2,6 +2,7 @@ import unittest
 
 import spamsum
 
+
 class SpamSumTest(unittest.TestCase):
     def setUp(self):
         self.s1 = "I am the very model of a modern Major-General, I've information animal and vegetable and mineral"