diff --git a/openflexure_microscope/api/default_extensions/picamera_autocalibrate/extension.py b/openflexure_microscope/api/default_extensions/picamera_autocalibrate/extension.py
index 28f51352..146bc8d7 100644
--- a/openflexure_microscope/api/default_extensions/picamera_autocalibrate/extension.py
+++ b/openflexure_microscope/api/default_extensions/picamera_autocalibrate/extension.py
@@ -1,5 +1,6 @@
 import logging
 from contextlib import contextmanager
+from typing import Tuple
 
 import labthings.fields as fields
 from flask import abort
@@ -7,7 +8,6 @@ from labthings import find_component
 from labthings.extensions import BaseExtension
 from labthings.views import ActionView
 from picamerax import PiCamera
-from typing import Tuple
 
 from openflexure_microscope.camera.base import BaseCamera
 from openflexure_microscope.microscope import Microscope
@@ -86,6 +86,7 @@ class LSTExtension(BaseExtension):
             endpoint="auto_lens_shading_table",
         )
 
+
 @contextmanager
 def find_picamera() -> Tuple[PiCamera, BaseCamera, Microscope]:
     """Locate the microscope and raise a sensible error if it's missing."""
@@ -132,6 +133,7 @@ class RecalibrateView(ActionView):
                 picamera.lens_shading_table = lst
             microscope.save_settings()
 
+
 class AutoLensShadingTableView(ActionView):
     def post(self):
         """Perform flat-field correction
@@ -149,6 +151,7 @@ class AutoLensShadingTableView(ActionView):
                 picamera.lens_shading_table = lst
             microscope.save_settings()
 
+
 class FlattenLSTView(ActionView):
     def post(self):
         with find_picamera() as (picamera, scamera, microscope):
diff --git a/setup.py b/setup.py
index 73269b1a..adf729ff 100644
--- a/setup.py
+++ b/setup.py
@@ -6,10 +6,11 @@ https://packaging.python.org/guides/distributing-packages-using-setuptools/
 
 """
 
-# the following imports, from the guide above, prefer `setuptools` to `distutils`
-from setuptools import setup, find_packages
 from os import path
 
+# the following imports, from the guide above, prefer `setuptools` to `distutils`
+from setuptools import find_packages, setup
+
 here = path.abspath(path.dirname(__file__))
 
 # Get the long description from the README file