diff --git a/notebooks/tutorial.ipynb b/notebooks/tutorial.ipynb
index c3e860c..efd021a 100644
--- a/notebooks/tutorial.ipynb
+++ b/notebooks/tutorial.ipynb
@@ -327,8 +327,11 @@
    ],
    "source": [
     "(\n",
-    "    dj.Diagram(subject.Subject) + dj.Diagram(surgery.Implantation)\n",
-    "    + dj.Diagram(session.Session) + dj.Diagram(Device) + dj.Diagram(optogenetics)\n",
+    "    dj.Diagram(subject.Subject)\n",
+    "    + dj.Diagram(surgery.Implantation)\n",
+    "    + dj.Diagram(session.Session)\n",
+    "    + dj.Diagram(Device)\n",
+    "    + dj.Diagram(optogenetics)\n",
     ")"
    ]
   },
@@ -584,15 +587,15 @@
     "        implant_type=\"opto\",\n",
     "        target_region=\"dHP\",\n",
     "        target_hemisphere=\"left\",\n",
-    "        ap=\"-7.9\",      # [mm] anterior-posterior distance\n",
+    "        ap=\"-7.9\",  # [mm] anterior-posterior distance\n",
     "        ap_ref=\"bregma\",\n",
-    "        ml=\"-1.8\",      # [mm] medial axis distance\n",
+    "        ml=\"-1.8\",  # [mm] medial axis distance\n",
     "        ml_ref=\"bregma\",\n",
-    "        dv=\"5\",         # [mm] dorso-ventral axis distance\n",
+    "        dv=\"5\",  # [mm] dorso-ventral axis distance\n",
     "        dv_ref=\"skull_surface\",\n",
-    "        theta=\"11.5\",   # [0, 180] degree rotation about ml-axis relative to z\n",
-    "        phi=\"0\",        # [0, 360] degree rotation about dv-axis relative to x\n",
-    "        beta=None,      # [-180, 180] degree rotation about shank relative to anterior\n",
+    "        theta=\"11.5\",  # [0, 180] degree rotation about ml-axis relative to z\n",
+    "        phi=\"0\",  # [0, 360] degree rotation about dv-axis relative to x\n",
+    "        beta=None,  # [-180, 180] degree rotation about shank relative to anterior\n",
     "    )\n",
     ")"
    ]
diff --git a/notebooks/tutorial_pipeline.py b/notebooks/tutorial_pipeline.py
index e6588f2..f18c250 100644
--- a/notebooks/tutorial_pipeline.py
+++ b/notebooks/tutorial_pipeline.py
@@ -30,6 +30,7 @@
 Experimenter = User
 session.activate(db_prefix + "session", linking_module=__name__)
 
+
 @lab.schema
 class Device(dj.Lookup):
     """Table for managing lab devices.
@@ -50,4 +51,5 @@ class Device(dj.Lookup):
         ["OPTG_4", "Optogenetics", "Doric Pulse Sequence Generator"],
     ]
 
+
 optogenetics.activate(db_prefix + "optogenetics", linking_module=__name__)