This closes SF bug #487308.

instead of PyOS_snprintf; add some relevant comments and asserts.

slot_tp_descr_set(): When deleting an attribute described by a
descriptor implemented in Python, the descriptor's __del__ method is
called by the slot_tp_descr_set dispatch function.  This is bogus --
__del__ already has a different meaning. Renaming this use of __del__
is renamed to __delete__.

use wrappers on all platforms, to make this as consistent as possible x-
platform (in particular, make sure there's at least one \0 byte in
the output buffer).  Also document more of the truth about what these do.

getargs.c, seterror():  Three computations of remaining buffer size were
backwards, thus telling PyOS_snprintf the buffer is larger than it
actually is.  This matters a lot now that PyOS_snprintf ensures there's a
trailing \0 byte (because it didn't get the truth about the buffer size,
it was storing \0 beyond the true end of the buffer).

sysmodule.c, mywrite():  Simplify, now that PyOS_vsnprintf guarantees to
produce a \0 byte.

on keybinding configuration

A system() lookalike that sends commands to ToolServer, by Daniel Brotsky. The semantics aren't enough like system() to add this to the main Lib folder, but it is pretty useful nonetheless for selected people.

slot_tp_descr_set(): When deleting an attribute described by a
descriptor implemented in Python, the descriptor's __del__ method is
called by the slot_tp_descr_set dispatch function.  This is bogus --
__del__ already has a different meaning. Renaming this use of __del__
is renamed to __delete__.

Now sys.executable points to the executable again, in stead of to
the shared library. The latter is used only for locating the python
home.

easier to find.  Based on the comment from Steve Alexander on the
zope-coders mailing list.

Fixes #485679.

ends.  Also, when there is trouble, ensure the buffer has a traiing
0 byte.

than the argument string size, copy as many bytes as will fit
(including a terminating '\0'), rather than not copying anything.
This to make it satisfy the C99 spec.

Bugfix candidate.
int_repr():  we've never had a buffer big enough to hold the largest
possible result on a 64-bit box.  Now that we're using snprintf instead
of sprintf, this can lead to nonsense results instead of random stack
corruption.

Use the new seealso* environment in the section pointing out other GUI
toolkits.

to seealso, but does not add the "See also:" header or put the content in a
box in the HTML version.

Updated the description of \seeurl to better indicate when it should be used;
the old description was written before we had \seetitle.

more similar.

changes from start of branch upto r22b2 were already merged, of course).

This closes SF bug #458447.