Merge remote-tracking branch 'origin/master' into labthings-070

openflexure_microscope/camera/mock.py

@@ -10,7 +10,6 @@ import time
 import numpy as np
 from PIL import Image, ImageFont, ImageDraw
 from datetime import datetime
-import gevent
 
 import logging
 
@@ -221,7 +220,7 @@ class MissingCamera(BaseCamera):
         # While the iterator is not closed
         try:
             while True:
-                gevent.sleep(1)  # Only serve frames at 1fps
+                time.sleep(1)  # Only serve frames at 1fps
                 # Reset stream
                 self.stream.seek(0)
                 self.stream.truncate()