pep8 formatting adjustments

Author: Andrew Godbehere

pvlib/tests/test_clearsky.py

@@ -675,20 +675,20 @@ def test_detect_clearsky_missing_index(detect_clearsky_data):
 def test_detect_clearsky_not_enough_data(detect_clearsky_data):
     expected, cs = detect_clearsky_data
     with pytest.raises(ValueError, match='have at least'):
-       clearsky.detect_clearsky(expected['GHI'], cs['ghi'], window_length=60)
+        clearsky.detect_clearsky(expected['GHI'], cs['ghi'], window_length=60)
 
 
 @pytest.mark.parametrize("window_length", [5, 10, 15, 20, 25])
 def test_detect_clearsky_optimizer_not_failed(
-        detect_clearsky_data, 
-        window_length
-    ):
+    detect_clearsky_data, window_length
+):
     expected, cs = detect_clearsky_data
     clear_samples = clearsky.detect_clearsky(
         expected["GHI"], cs["ghi"], window_length=window_length
     )
     assert isinstance(clear_samples, pd.Series)
 
+
 @pytest.fixture
 def detect_clearsky_helper_data():
     samples_per_window = 3