Merged revisions 75275 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r75275 | mark.dickinson | 2009-10-07 20:22:05 +0100 (Wed, 07 Oct 2009) | 6 lines

  Issue #7048: logb should round its result when that result doesn't fit
  into the available precision.  (Tests for this change are included in
  the most recent set of testcases from the Decimal Specification site;
  those testcases will be updated shortly.)
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diff --git a/Lib/decimal.py b/Lib/decimal.py
index 33f5391..5045722 100644
--- a/Lib/decimal.py
+++ b/Lib/decimal.py
@@ -3209,7 +3209,8 @@
         # otherwise, simply return the adjusted exponent of self, as a
         # Decimal.  Note that no attempt is made to fit the result
         # into the current context.
-        return Decimal(self.adjusted())
+        ans = Decimal(self.adjusted())
+        return ans._fix(context)
 
     def _islogical(self):
         """Return True if self is a logical operand.