diff --git a/tests/pytest-pypi/pytest_pypi/app.py b/tests/pytest-pypi/pytest_pypi/app.py
index 83f82200..e8d9431f 100644
--- a/tests/pytest-pypi/pytest_pypi/app.py
+++ b/tests/pytest-pypi/pytest_pypi/app.py
@@ -43,16 +43,20 @@ def prepare_packages():
 
                 packages[package_name].add_release(os.path.sep.join([root, file]))
 
+
 prepare_packages()
 
+
 @app.route('/')
 def hello_world():
     return redirect('/simple', code=302)
 
+
 @app.route('/simple')
 def simple():
     return render_template('simple.html', packages=packages.values())
 
+
 @app.route('/simple/<package>/')
 def simple_package(package):
     if package in packages:
@@ -60,6 +64,7 @@ def simple_package(package):
     else:
         abort(404)
 
+
 @app.route('/<package>/<release>')
 def serve_package(package, release):
     if package in packages:
@@ -71,5 +76,6 @@ def serve_package(package, release):
 
     abort(404)
 
+
 if __name__ == '__main__':
-    app.run()
\ No newline at end of file
+    app.run()