diff --git a/src/css_selectors/tests.py b/src/css_selectors/tests.py
index 1109016785..ac85303746 100644
--- a/src/css_selectors/tests.py
+++ b/src/css_selectors/tests.py
@@ -13,6 +13,7 @@ from css_selectors.errors import SelectorSyntaxError, ExpressionError
 from css_selectors.parser import tokenize, parse
 from css_selectors.select import Select
 
+
 class TestCSSSelectors(unittest.TestCase):
 
     # Test data {{{
@@ -796,10 +797,12 @@ by William Shakespeare
 
     # }}}
 
+
 # Run tests {{{
 def find_tests():
     return unittest.defaultTestLoader.loadTestsFromTestCase(TestCSSSelectors)
 
+
 def run_tests(find_tests=find_tests, for_build=False):
     if not for_build:
         parser = argparse.ArgumentParser()
@@ -834,6 +837,7 @@ def run_tests(find_tests=find_tests, for_build=False):
     if for_build and result.errors or result.failures:
         raise SystemExit(1)
 
+
 if __name__ == '__main__':
     run_tests()
 # }}}