Remove trailing whitespace.
diff --git a/Doc/library/datetime.rst b/Doc/library/datetime.rst
index 76b8470..570ed9e 100644
--- a/Doc/library/datetime.rst
+++ b/Doc/library/datetime.rst
@@ -266,10 +266,10 @@
 considered to be true if and only if it isn't equal to ``timedelta(0)``.
 
 Example usage:
-    
+
     >>> from datetime import timedelta
     >>> year = timedelta(days=365)
-    >>> another_year = timedelta(weeks=40, days=84, hours=23, 
+    >>> another_year = timedelta(weeks=40, days=84, hours=23,
     ...                          minutes=50, seconds=600)  # adds up to 365 days
     >>> year == another_year
     True
@@ -517,10 +517,10 @@
     True
     >>> my_birthday = date(today.year, 6, 24)
     >>> if my_birthday < today:
-    ...     my_birthday = my_birthday.replace(year=today.year + 1) 
+    ...     my_birthday = my_birthday.replace(year=today.year + 1)
     >>> my_birthday
     datetime.date(2008, 6, 24)
-    >>> time_to_birthday = abs(my_birthday - today) 
+    >>> time_to_birthday = abs(my_birthday - today)
     >>> time_to_birthday.days
     202
 
@@ -1015,7 +1015,7 @@
     >>> tt = dt.timetuple()
     >>> for it in tt:   # doctest: +SKIP
     ...     print it
-    ... 
+    ...
     2006    # year
     11      # month
     21      # day
@@ -1044,23 +1044,23 @@
     ...     def __init__(self):         # DST starts last Sunday in March
     ...         d = datetime(dt.year, 4, 1)   # ends last Sunday in October
     ...         self.dston = d - timedelta(days=d.weekday() + 1)
-    ...         d = datetime(dt.year, 11, 1)    
+    ...         d = datetime(dt.year, 11, 1)
     ...         self.dstoff = d - timedelta(days=d.weekday() + 1)
     ...     def utcoffset(self, dt):
     ...         return timedelta(hours=1) + self.dst(dt)
-    ...     def dst(self, dt):              
+    ...     def dst(self, dt):
     ...         if self.dston <=  dt.replace(tzinfo=None) < self.dstoff:
     ...             return timedelta(hours=1)
     ...         else:
     ...             return timedelta(0)
     ...     def tzname(self,dt):
     ...          return "GMT +1"
-    ... 
+    ...
     >>> class GMT2(tzinfo):
     ...     def __init__(self):
-    ...         d = datetime(dt.year, 4, 1)  
+    ...         d = datetime(dt.year, 4, 1)
     ...         self.dston = d - timedelta(days=d.weekday() + 1)
-    ...         d = datetime(dt.year, 11, 1)    
+    ...         d = datetime(dt.year, 11, 1)
     ...         self.dstoff = d - timedelta(days=d.weekday() + 1)
     ...     def utcoffset(self, dt):
     ...         return timedelta(hours=1) + self.dst(dt)
@@ -1071,7 +1071,7 @@
     ...             return timedelta(0)
     ...     def tzname(self,dt):
     ...         return "GMT +2"
-    ... 
+    ...
     >>> gmt1 = GMT1()
     >>> # Daylight Saving Time
     >>> dt1 = datetime(2006, 11, 21, 16, 30, tzinfo=gmt1)
@@ -1092,7 +1092,7 @@
     datetime.datetime(2006, 6, 14, 13, 0, tzinfo=<GMT1 object at 0x...>)
     >>> dt2.utctimetuple() == dt3.utctimetuple()
     True
- 
+
 
 
 .. _datetime-time:
@@ -1240,12 +1240,12 @@
    return ``None`` or a string object.
 
 Example:
-    
+
     >>> from datetime import time, tzinfo
     >>> class GMT1(tzinfo):
     ...     def utcoffset(self, dt):
-    ...         return timedelta(hours=1) 
-    ...     def dst(self, dt):              
+    ...         return timedelta(hours=1)
+    ...     def dst(self, dt):
     ...         return timedelta(0)
     ...     def tzname(self,dt):
     ...         return "Europe/Prague"
@@ -1476,7 +1476,7 @@
 :class:`tzinfo` subclasses; there are no ambiguities when using UTC, or any
 other fixed-offset :class:`tzinfo` subclass (such as a class representing only
 EST (fixed offset -5 hours), or only EDT (fixed offset -4 hours)).
-    
+
 
 .. _strftime-behavior:
 
@@ -1521,7 +1521,7 @@
 
 The full set of format codes supported varies across platforms, because Python
 calls the platform C library's :func:`strftime` function, and platform
-variations are common.  
+variations are common.
 
 The following is a list of all the format codes that the C standard (1989
 version) requires, and these work on all platforms with a standard C