The first batch of changes recommended by the fixdiv tool.  These are
mostly changes of / operators into //.  Once or twice I did more or
less than recommended.
diff --git a/Lib/bisect.py b/Lib/bisect.py
index d311337..c9e6c60 100644
--- a/Lib/bisect.py
+++ b/Lib/bisect.py
@@ -12,7 +12,7 @@
     if hi is None:
         hi = len(a)
     while lo < hi:
-        mid = (lo+hi)/2
+        mid = (lo+hi)//2
         if x < a[mid]: hi = mid
         else: lo = mid+1
     a.insert(lo, x)
@@ -33,7 +33,7 @@
     if hi is None:
         hi = len(a)
     while lo < hi:
-        mid = (lo+hi)/2
+        mid = (lo+hi)//2
         if x < a[mid]: hi = mid
         else: lo = mid+1
     return lo
@@ -52,7 +52,7 @@
     if hi is None:
         hi = len(a)
     while lo < hi:
-        mid = (lo+hi)/2
+        mid = (lo+hi)//2
         if a[mid] < x: lo = mid+1
         else: hi = mid
     a.insert(lo, x)
@@ -72,7 +72,7 @@
     if hi is None:
         hi = len(a)
     while lo < hi:
-        mid = (lo+hi)/2
+        mid = (lo+hi)//2
         if a[mid] < x: lo = mid+1
         else: hi = mid
     return lo