Trim whitespace

Author: jbrockmendel

pandas/tests/test_lib.py

@@ -250,7 +250,6 @@ def test_empty_like(self):
         self._check_behavior(arr, expected)
 
 
-
 def test_period_immutable():
     per = pd.Period('2014Q1')
     with pytest.raises(AttributeError, message="is not writable"):