outer level, the iterator protocol is used for memory-efficiency (the
outer sequence may be very large if fully materialized); at the inner
level, PySequence_Fast() is used for time-efficiency (these should
always be sequences of length 2).

dictobject.c, new functions PyDict_{Merge,Update}FromSeq2.  These are
wholly analogous to PyDict_{Merge,Update}, but process a sequence-of-2-
sequences argument instead of a mapping object.  For now, I left these
functions file static, so no corresponding doc changes.  It's tempting
to change dict.update() to allow a sequence-of-2-seqs argument too.

Also changed the name of dictionary's keyword argument from "mapping"
to "x".  Got a better name?  "mapping_or_sequence_of_pairs" isn't
attractive, although more so than "mosop" <wink>.

abstract.h, abstract.tex:  Added new PySequence_Fast_GET_SIZE function,
much faster than going thru the all-purpose PySequence_Size.

libfuncs.tex:
- Document dictionary().
- Fiddle tuple() and list() to admit that their argument is optional.
- The long-winded repetitions of "a sequence, a container that supports
  iteration, or an iterator object" is getting to be a PITA.  Many
  months ago I suggested factoring this out into "iterable object",
  where the definition of that could include being explicit about
  generators too (as is, I'm not sure a reader outside of PythonLabs
  could guess that "an iterator object" includes a generator call).
- Please check my curly braces -- I'm going blind <0.9 wink>.

abstract.c, PySequence_Tuple():  When PyObject_GetIter() fails, leave
its error msg alone now (the msg it produces has improved since
PySequence_Tuple was generalized to accept iterable objects, and
PySequence_Tuple was also stomping on the msg in cases it shouldn't
have even before PyObject_GetIter grew a better msg).

priority.  Add tp_cache; add some comments to others.

second noted after a second's thought about what the next line should
do. :-(

error occurs, and doesn't return a count.  (This is my second patch
from SF patch #474307, with small change to the docstring for send().)

2.1.2 "bugfix" candidate.

presentation.  This is acceptable since it only occurs in the formatted
output and does not affect the document markup.

When describing a Boolean return value, use "true" and "false" instead of
"1" and "0".
Style-guide conformance:  no "iff" -- to obscure for many readers.  ;-(

the separating semi-colon shows up on a continuation line (legal, but
weird).

Bug reported and fixed by Matthew Cowles.  Test case and sample email
included.

non-standard but common types.  Including Martin's suggestion to add
rejected non-standard types from patch #438790.  Specifically,

guess_type(), guess_extension(): Both the functions and the methods
grow an optional "strict" flag, defaulting to true, which determines
whether to recognize non-standard, but commonly found types or not.

Also, I sorted, reformatted, and culled duplicates from the big
types_map dictionary.  Note that there are a few non-equivalent
duplicates (e.g. .cdf and .xls) for which the first will just get
thrown away.  I didn't remove those though.

Finally, use of the module as a script as grown the -l and -e options
to toggle strictness and to do guess_extension(), respectively.

Doc and unittest updates too.

to call the corresponding methods.  This is not a performance improvement
since the times are still swamped by disk I/O, but cleans up the code just
a little.

Replace some tortuous code that was trying to be clever but forgot to
DECREF the key and value, by more longwinded but obviously correct
code.

(Inspired by but not copying the fix from SF patch #475033.)

of the if block where it was before.  The name is only used inside
that if block, but the storage is referenced outside it via the 's'
variable.

(This patch was part of SF patch #474590 -- RISC OS support.)

work to be done, but do not require the HTML to be re-built.

and that the work-around should be restricted to that system.

like findall, but returns an iterator (which returns match objects)
instead of a list of strings/tuples.

This has sat around in a deprecated state for a *long* time!

to os.extsep -- that variable actually didn't exist in that release!

PyArg_UnpackTuple().

As the comments in the module implied, pyclbr was easily confused by
"strange stuff" inside single- (but not triple-) quoted strings.  It
isn't anymore.  Its behavior remains flaky in the presence of nested
functions and classes, though.
Bugfix candidate.

set of names imported (the "public names"), adding a definition of "public
names" that describes the use of __all__.
This closes SF bug #473986.

Flesh out the vague reference to __import__().

STRICT_SYSV_CURSES when compiling curses module on HP/UX. Generalize
access to _flags on systems where WINDOW is opaque. Fixes bugs
#432497, #422265, and the curses parts of #467145 and #473150.

not properly processing numeric IPv4 addresses. Fixes V5.1 part of #472675.

machine. Luckily everyone is asleep, so I didn't have to use the time
machine.

Some escaped newlines had spaces between the backslash and the newline. Also slightly changed the comment on xstat().