RELEASED: Python 2.2a3 is out!
Barry A. Warsaw
barry at zope.com
Fri Sep 7 19:46:09 CEST 2001
We've released Python 2.2a3, the third alpha for Python 2.2, for your
excitement, enlightenment, and endless-amusement. Download it from:
Give it a good try, and report what breaks to the bug tracker:
[Note: this is my first solo release as Release Manager. If you find
any problems with the downloads, please let me know! -BAW]
New features in this release include:
- Conversion of long to float now raises OverflowError if the long is too
big to represent as a C double.
- The 3-argument builtin pow() no longer allows a third non-None argument
in some situations.
- The builtin dir() now returns more information.
- Overflowing operations on plain ints now return a long int rather
than raising OverflowError.
- A new command line option, -Q<arg>, is added to control run-time
warnings for the use of classic division.
- Many built-in types can now be subclassed.
- The dictionary constructor now takes an optional argument, a
- New built-in types `super' and `property' have been added.
- The syntax of floating-point and imaginary literals has been
liberalized, to allow leading zeroes.
- Lots of bug fixes, contributed patches, and other stuff. See the
Misc/NEWS file in the distribution, or see the release notes on
As usual, Andrew Kuchling is writing a gentle introduction to the most
important changes (currently excluding type/class unification), titled
"What's New in Python 2.2":
There is an introduction to the type/class unification at:
Thanks to everybody who contributed to this release, including all the
2.2 alpha 1 and 2 testers!
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