Merge branch 'master' of https://github.com/Microsoft/malmo

Author: DaveyBiggers

Malmo/samples/Python_examples/radar_test.py

@@ -96,7 +96,7 @@ def processFrame(self, frame):
 
             # Get the depth value from the centre of the map:
             mid_pix = 2 * video_width * (video_height + 1)  # flattened index of middle pixel
-            depth = scale * struct.unpack('f', str(frame.pixels[mid_pix:mid_pix + 4]))[0]   # unpack 32bit float
+            depth = scale * struct.unpack('f', bytes(frame.pixels[mid_pix:mid_pix + 4]))[0]   # unpack 32bit float
 
             # Draw the "blip":
             x = cx + depth * math.cos(angle)