SW-382: Replace Python2 integer division (/) with Python3 one (//)

LCU/PPSTune/ppstune/ppstune.py

@@ -1477,7 +1477,7 @@ def measure_diff_stability(clock_mhz, repeat = 10,
         diffs.append(normalized_diffs)
 
     transposed = transpose_lists(diffs)
-    medians    = [sorted(row)[repeat/2] for row in transposed]
+    medians    = [sorted(row)[repeat // 2] for row in transposed]
     deviating  = [sum([diff != median for diff in row])
                   for median, row in zip(medians, transposed)]
     return deviating, medians
@@ -1607,7 +1607,7 @@ def measure_all_delays(clock_mhz,
             for index in range(len(failed_attempts)):
                 if medians[index] != previous_medians[index]:
                     fails = failed_attempts[index]
-                    failed_attempts[index] = min(repeat, fails + 1 + repeat/2)
+                    failed_attempts[index] = min(repeat, fails + 1 + repeat // 2)
         previous_medians = medians
             
         logging.info('Diff errors %3d: [%s]', delay_step,
@@ -1824,7 +1824,7 @@ def ap_optimal_delay_step(ap_failures, cycle_length = 67):
     at_minimum = [fails == minimum for fails in ap_failures]
     
     if all(at_minimum):
-        return -int(floor(cycle_length/2))
+        return -(cycle_length // 2)
 
     d_forward = distance_forward(at_minimum, False)
     d_reverse = distance_forward(at_minimum[::-1], False)[::-1]
@@ -1833,7 +1833,7 @@ def ap_optimal_delay_step(ap_failures, cycle_length = 67):
                     for d_for, d_rev in zip(d_forward, d_reverse)]
     modified_distance = []
     for dist in distance:
-        if dist <= cycle_length/2:
+        if dist <= cycle_length // 2:
             modified_distance.append(dist)
         else:
             modified_distance.append(cycle_length - dist)