Add fix up time series more

Author: canyon289

pymc/tests/test_distributions_timeseries.py

@@ -90,16 +90,18 @@ def test_grw_inference(self):
 class TestGRWScipy(td.TestMatchesScipy):
     # TODO: Test LogP for different inits in its own function
 
-    # TODO: Find issue that says GRW wont take vector 
+    # TODO: Find issue that says GRW wont take vector
     def test_grw_logp(self):
         def grw_logp(value, mu, sigma):
             # Relying on fact that init will be normal
-            # Note: This means we're not testing 
+            # Note: This means we're not testing
             stationary_series = np.diff(value)
-            logp = stats.norm.logpdf(value[0], mu, sigma) + \
-            stats.norm.logpdf(stationary_series, mu, sigma).sum(),
+            logp = (
+                stats.norm.logpdf(value[0], mu, sigma)
+                + stats.norm.logpdf(stationary_series, mu, sigma).sum(),
+            )
             return logp
-             
+
         # TODO: Make base class a static method
         self.check_logp(
             pm.GaussianRandomWalk,