introduce a pep8 violation to test the flake8 check

kandersolar · kandersolar · commit c78dc681524a · 2020-11-10T10:55:32.000-07:00
diff --git a/rdtools/degradation.py b/rdtools/degradation.py
@@ -4,6 +4,7 @@
 import numpy as np
 import statsmodels.api as sm
 
+import os  # test the flake8 check
 
 def degradation_ols(energy_normalized, confidence_level=68.2):
     '''
