This introduces:
- A new operator // that means floor division (the kind of division
where 1/2 is 0).
- The "future division" statement ("from __future__ import division)
which changes the meaning of the / operator to implement "true
division" (where 1/2 is 0.5).
- New overloadable operators __truediv__ and __floordiv__.
- New slots in the PyNumberMethods struct for true and floor division,
new abstract APIs for them, new opcodes, and so on.
I emphasize that without the future division statement, the semantics
of / will remain unchanged until Python 3.0.
Not yet implemented are warnings (default off) when / is used with int
or long arguments.
This has been on display since 7/31 as SF patch #443474.
Flames to /dev/null.
pythonmac-sig about turning this all into a package, so in the mean time
there is no reason to scribble all over people's disks. Interested parties
can uncomment them.
Peter Schneider-Kamp.
Clarified some docstrings in the spirit of the patch; left out the
degrees() and radians() functions (see the patch comments on SF).
Also fix another bug caught by pychecker-- HTTPError() raised when
redirect limit exceed did not pass an fp object. Had to change method
to keep fp object around until it's certain that the error won't be
raised.
Remove useless line in do_proxy().
attribute values. Just using escape() can (and always has) led to broken
XML being generated. This makes sure it always produces the right thing.
This actually closes SF bug #440351.
break old code (in extreme cases). See SF bug #448153.
Add a new subclass IterableUserDict that has the __iter__ method.
Note that for new projects, unless backwards compatibility with
pre-2.2 Python is required, subclassing 'dictionary' is recommended;
UserDict might become deprecated.
- Add an explicit call to PyType_Ready(&PyList_Type) to pythonrun.c
(just for the heck of it, really -- we should either explicitly
ready all types, or none).
__all__, to indicate these are implied as part of the public API.
IDLE's "Check Module" command uses this, and it broke once already
because the reset_globals() and tokeneater() functions were deleted
when Neil converted this to using the generator API of tokenizer.
(See SF bug #448835.)
- Add comment blocks explaining add_operators() and override_slots().
(This file could use some more explaining, but this is all I had
breath for today. :)
- Renamed the argument 'base' of add_wrappers() to 'wraps' because
it's not a base class (which is what the 'base' identifier is used
for elsewhere).
Small nits:
- Fix add_tp_new_wrapper() to avoid overwriting an existing __new__
descriptor in tp_defined.
- In add_operators(), check the return value of add_tp_new_wrapper().
Functional change:
- Remove the tp_new functionality from PyBaseObject_Type; this means
you can no longer instantiate the 'object' type. It's only useful
as a base class.
- To make up for the above loss, add tp_new to dynamic types. This
has to be done in a hackish way (after override_slots() has been
called, with an explicit call to add_tp_new_wrapper() at the very
end) because otherwise I ran into recursive calls of slot_tp_new().
Sigh.
mistake).
+ Arrange for Win2K Add/Remove to show a Python icon.
I think this "does it" -- a full install/uninstall can now be done on a
Win2K box from an ordinary (not Admin, not Power User) user acct, incl.
file extension registration, Start Menu entries, and full Add/Remove.
