add enumerate instead

Author: brentru

adafruit_atecc/adafruit_atecc.py

@@ -326,8 +326,8 @@ def random(self, rnd_min=0, rnd_max=0):
         r = bytes(16)
         r = self._random(r)
         data = 0
-        for i in range(len(r)):
-            data += r[i]
+        for i in enumerate(r):
+            data += r[i[0]]
         if data < 0:
             data = -data
         data = data % delta