From b2f793b1de122e28c48b1f46cb1cdfa056916481 Mon Sep 17 00:00:00 2001
From: Valentin Sulzer <valentinsulzer@hotmail.com>
Date: Wed, 19 Feb 2020 09:16:53 -0500
Subject: [PATCH] #835 flake8

---
 pybamm/discretisations/discretisation.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pybamm/discretisations/discretisation.py b/pybamm/discretisations/discretisation.py
index 48681b3f1d..abace025f3 100644
--- a/pybamm/discretisations/discretisation.py
+++ b/pybamm/discretisations/discretisation.py
@@ -994,7 +994,9 @@ def check_initial_conditions(self, model):
         """Check initial conditions are a numpy array"""
         # Individual
         for var, eqn in model.initial_conditions.items():
-            assert type(eqn.evaluate(t=0, u="shape test")) is np.ndarray, pybamm.ModelError(
+            assert (
+                type(eqn.evaluate(t=0, u="shape test")) is np.ndarray
+            ), pybamm.ModelError(
                 """
                 initial_conditions must be numpy array after discretisation but they are
                 {} for variable '{}'.