Mass patch by Ka-Ping Yee:

1. Comments at the beginning of the module, before
       functions, and before classes have been turned
       into docstrings.

    2. Tabs are normalized to four spaces.

Also, removed the "remove" function from dircmp.py, which reimplements
list.remove() (it must have been very old).

Lib/bisect.py

@@ -1,25 +1,23 @@
-# Bisection algorithms
+"""Bisection algorithms."""
 
 
-# Insert item x in list a, and keep it sorted assuming a is sorted
-
 def insort(a, x, lo=0, hi=None):
-	if hi is None:
-		hi = len(a)
-	while lo < hi:
-		mid = (lo+hi)/2
-		if x < a[mid]: hi = mid
-		else: lo = mid+1
-	a.insert(lo, x)
+    """Insert item x in list a, and keep it sorted assuming a is sorted."""
+    if hi is None:
+        hi = len(a)
+    while lo < hi:
+        mid = (lo+hi)/2
+        if x < a[mid]: hi = mid
+        else: lo = mid+1
+    a.insert(lo, x)
 
 
-# Find the index where to insert item x in list a, assuming a is sorted
-
 def bisect(a, x, lo=0, hi=None):
-	if hi is None:
-		hi = len(a)
-	while lo < hi:
-		mid = (lo+hi)/2
-		if x < a[mid]: hi = mid
-		else: lo = mid+1
-	return lo
+    """Find the index where to insert item x in list a, assuming a is sorted."""
+    if hi is None:
+        hi = len(a)
+    while lo < hi:
+        mid = (lo+hi)/2
+        if x < a[mid]: hi = mid
+        else: lo = mid+1
+    return lo