Library
-------
+- Issue #9136: Fix 'dictionary changed size during iteration'
+ RuntimeError produced when profiling the decimal module. This was
+ due to a dangerous iteration over 'locals()' in Context.__init__.
+
+- Fix extreme speed issue in Decimal.pow when the base is an exact
+ power of 10 and the exponent is tiny (for example,
+ Decimal(10) ** Decimal('1e-999999999')).
+
- Issue #9161: Fix regression in optparse's acceptance of unicode
strings in add_option calls.
Core and Builtins
-----------------
-- Issue #9136: Fix 'dictionary changed size during iteration'
- RuntimeError produced when profiling the decimal module. This was
- due to a dangerous iteration over 'locals()' in Context.__init__.
-
- Issue #7301: Add environment variable $PYTHONWARNINGS.
- Issue #8329: Don't return the same lists from select.select when no fds are
changed.
-- Fix extreme speed issue in Decimal.pow when the base is an exact
- power of 10 and the exponent is tiny (for example,
- Decimal(10) ** Decimal('1e-999999999')).
-
- Issue #8259: ``1L << (2**31)`` no longer produces an 'outrageous shift error'
on 64-bit machines. The shift count for either left or right shift is
permitted to be up to sys.maxsize.