pep8 fixes

setup.py

@@ -17,10 +17,11 @@ setup_args = dict(
     author_email='michal.kalinski@pwr.edu.pl',
 
     packages=['plwn', 'plwn.readers', 'plwn.storages', 'plwn.utils'],
-    package_data={'plwn.default': ['*.db'],'plwn':['config.ini']},
+    package_data={'plwn.default': ['*.db'], 'plwn': ['config.ini']},
 
     test_suite='tests.setuptools_loader.setuptools_load_tests',
-    install_requires=['six>=1.10', 'enum34>=1.1.2;python_version<"3.4"','requests'],
+    install_requires=['six>=1.10',
+                      'enum34>=1.1.2;python_version<"3.4"', 'requests'],
     zip_safe=False,
 )