- point out the importance of reassigning data members before
assigning thier values
- correct my missconception about return values from visitprocs. Sigh.
- mention the labor saving Py_VISIT and Py_CLEAR macros.
the documented behavior: the function passed to the onerror()
handler can now also be os.listdir.
[I could've sworn I checked this in, but apparently I didn't, or it
got lost???]
expected to write their own. A NULL "object" must not be passed to
the visit callback. A non-zero return from a visit proc isn't
necessarily an error return (and it doesn't matter to the tp_traverse
code *what* it might signify, their only job is to return it).
URLs will seemingly succeed to read a URL that points to a file whose
permissions you do not have to read.
Backport candidate once everyone agrees with the wording.
I don't agree it had a bug (see the report), so this is *not* a candidate
for backporting, but the docs were confusing and the Queue implementation
was old enough to vote.
Rewrote put/put_nowait/get/get_nowait from scratch, to use a pair of
Conditions (not_full and not_empty), sharing a common mutex. The code
is 1/4 the size now, and 6.25x easier to understand. For blocking
with timeout, we also get to reuse (indirectly) the tedious timeout
code from threading.Condition. The Full and Empty exceptions raised
by non-blocking calls are now easy (instead of nearly impossible) to
explain truthfully: Full is raised if and only if the Queue truly
is full when the non-blocking put call checks the queue size, and
similarly for Empty versus non-blocking get.
What I don't know is whether the new implementation is slower (or
faster) than the old one. I don't really care. Anyone who cares
a lot is encouraged to check that.
Anthony Tuininga.
This is a derived patch, taking the opportunity to add some organization
to the now-large pile of datetime-related macros, and to factor out
tedious repeated text.
Also improved some clumsy wording in NEWS.
Patch by John J Lee
Reviewed by Jeff Epler / KBK
Doc built OK.
urlopen() may return None if no handler handles the request.
Also clarify what install_opener does.
M liburllib2.tex
* Rename "trap_enablers" to just "traps".
* Simplify names of "settraps" and "setflags" to just "traps" and "flags".
* Show "capitals" in the context representation
* Simplify the Context constructor to match its repr form so that only
the set flags and traps need to be listed.
* Representation can now be run through eval().
Improve the error message when the Decimal constructor is given a float.
The test suite no longer needs a duplicate reset_flags method.
* Map conditions to related signals.
* Make contexts unhashable.
* Eliminate used "default" attribute in exception definitions.
* Eliminate the _filterfunc in favor of a straight list.
Docs:
* Eliminate documented references to conditions that are not signals.
* Eliminate parenthetical notes such as "1/0 --> Inf" which are no
longer true with the new defaults.
- weakref.ref and weakref.ReferenceType will become aliases for each
other
- weakref.ref will be a modern, new-style class with proper __new__
and __init__ methods
- weakref.WeakValueDictionary will have a lighter memory footprint,
using a new weakref.ref subclass to associate the key with the
value, allowing us to have only a single object of overhead for each
dictionary entry (currently, there are 3 objects of overhead per
entry: a weakref to the value, a weakref to the dictionary, and a
function object used as a weakref callback; the weakref to the
dictionary could be avoided without this change)
- a new macro, PyWeakref_CheckRefExact(), will be added
- PyWeakref_CheckRef() will check for subclasses of weakref.ref
This closes SF patch #983019.
The builtin eval() function now accepts any mapping for the locals argument.
Time sensitive steps guarded by PyDict_CheckExact() to keep from slowing
down the normal case. My timings so no measurable impact.
char *`` instead of just ``char *``. Also added the mentioning of "const" in
some places where it was left out even when the signature already stated the
fact.
Closes bug #980925.
PyArg_ParseTuple() to ``const char *`` to match the recommendation made in
section 1.3 and to support better coding habits.
Section 1.8 ("Keyword Parameters for Extension Functions") and it's coding
example were not touched since it is stems from an accredited source and thus
did not want to step on anyone's toes.
The LaTeX is untested (well, so is the new API, for that matter).
Note that I also changed NULL to get spelled consistently in concrete.tex.
If that was a wrong thing to do, Fred should yell at me.
Tim Peters
Andrew M. Kuchling
Raymond Hettinger
Jim Fulton
Guido van Rossum
Fred Drake
Brett Cannon
Vinay Sajip
Anthony Baxter
Kurt B. Kaiser
Skip Montanaro
Nicholas Bastin
Walter Dörwald
Michael W. Hudson
Barry Warsaw
Martin v. Löwis
Thomas Heller