Instead of sending the real user and host, use "anonymous@" (i.e. no
host name at all!) as the default anonymous FTP password. This avoids
privacy violations.
Instead of sending the real user and host, use "anonymous@" (i.e. no
host name at all!) as the default anonymous FTP password. This avoids
privacy violations.
Removed the ancient "#define ANY void".
Bugfix candidate? Hard call. The bug report claims the existence of
this #define creates conflicts with other packages, which is easy to
believe. OTOH, some extension authors may still be relying on its
presence. I'm afraid you can't win on this one.
binascii_b2a_base64(): We didn't allocate enough buffer space for very
short inputs (e.g., a 1-byte input can produce a 5-byte output, but we
only allocated 2 bytes). I expect that malloc overheads absorbed the
overrun in practice, but computing a correct upper bound is a very simple
change.
PyDict_UpdateFromSeq2(): removed it.
PyDict_MergeFromSeq2(): made it public and documented it.
PyDict_Merge() docs: updated to reveal <wink> that the second
argument can be any mapping object.
type.__module__ behavior.
This adds the module name and a dot in front of the type name in every
type object initializer, except for built-in types (and those that
already had this). Note that it touches lots of Mac modules -- I have
no way to test these but the changes look right. Apologies if they're
not. This also touches the weakref docs, which contains a sample type
object initializer. It also touches the mmap test output, because the
mmap type's repr is included in that output. It touches object.h to
put the correct description in a comment.
Anthony Roach.
Release the global interpreter lock around platform spawn calls.
Bugfix candidate? Hard to say; I favor "yes, bugfix".
These clearly *should* have been releasing the GIL all along, if for no
other reason than compatibility with the similar os.system(). But it's
possible some program out there is (a) multithreaded, (b) calling a spawn
function with P_WAIT, and (c) relying on the spawn call to block all their
threads until the spawned program completes. I think it's very unlikely
anyone is doing that on purpose, but someone may be doing so by accident.
Big Hammer to implement -Qnew as PEP 238 says it should work (a global
option affecting all instances of "/").
pydebug.h, main.c, pythonrun.c: define a private _Py_QnewFlag flag, true
iff -Qnew is passed on the command line. This should go away (as the
comments say) when true division becomes The Rule. This is
deliberately not exposed to runtime inspection or modification: it's
a one-way one-shot switch to pretend you're using Python 3.
ceval.c: when _Py_QnewFlag is set, treat BINARY_DIVIDE as
BINARY_TRUE_DIVIDE.
test_{descr, generators, zipfile}.py: fiddle so these pass under
-Qnew too. This was just a matter of s!/!//! in test_generators and
test_zipfile. test_descr was trickier, as testbinop() is passed
assumptions that "/" is the same as calling a "__div__" method; put
a temporary hack there to call "__truediv__" instead when the method
name is "__div__" and 1/2 evaluates to 0.5.
Three standard tests still fail under -Qnew (on Windows; somebody
please try the Linux tests with -Qnew too! Linux runs a whole bunch
of tests Windows doesn't):
test_augassign
test_class
test_coercion
I can't stay awake longer to stare at this (be my guest). Offhand
cures weren't obvious, nor was it even obvious that cures are possible
without major hackery.
Question: when -Qnew is in effect, should calls to __div__ magically
change into calls to __truediv__? See "major hackery" at tail end of
last paragraph <wink>.
It was easier than I thought, assuming that no other things contribute
to the instance size besides slots -- a pretty good bet. With a test
suite, no less!
happy if one could delete the __dict__ attribute of an instance. I
love to make Jim happy, so here goes...
- New-style objects now support deleting their __dict__. This is for
all intents and purposes equivalent to assigning a brand new empty
dictionary, but saves space if the object is not used further.
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__.
vgetargskeywords(): Now that this routine is checking for bad input
(rather than dump core in some cases), some bad calls are raising errors
that previously "worked". This patch makes the error strings more
revealing, and changes the exceptions from SystemError to RuntimeError
(under the theory that SystemError is more of a "can't happen!" assert-
like thing, and so inappropriate for bad arguments to a public C API
function).
Bugfix candidate.
tb_displayline(): the sprintf format was choking off the file name, but
used plain %s for the function name (which can be arbitrarily long).
Limit both to 500 chars max.
special-cases classic classes, it doesn't do anything about other
cases where different metaclasses are involved (except for the trivial
case where one metaclass is a subclass of the others). Also note that
it's metaclass, not metatype.
This gives mmap() on Windows the ability to create read-only, write-
through and copy-on-write mmaps. A new keyword argument is introduced
because the mmap() signatures diverged between Windows and Unix, so
while they (now) both support this functionality, there wasn't a way to
spell it in a common way without introducing a new spelling gimmick.
The old spellings are still accepted, so there isn't a backward-
compatibility issue here.
and NEWS. Bugfix candidate? That's a dilemma for Anthony <wink>: /F
did fix a longstanding bug here, but the fix can cause code to raise an
exception that previously worked by accident.
Removed "#undef HAVE_HYPOT" line from Borland config, as suggested.
Whether this will break some other Borland usage is a good question I
can't answer.
XXX Remaining problems:
- The GC module doesn't know about these; I think it has its reasons
to disallow calling __del__, but for now, __del__ on new-style
objects is called when the GC module discards an object, for better
or for worse.
- The code to call a __del__ handler is really ridiculously
complicated, due to all the different debug #ifdefs. I've copied
this from the similar code in classobject.c, so I'm pretty sure I
did it right, but it's not pretty. :-(
- No tests yet.
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).
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.)
The C-code in fileobject.readinto(buffer) which parses
the arguments assumes that size_t is interchangeable
with int:
size_t ntodo, ndone, nnow;
if (f->f_fp == NULL)
return err_closed();
if (!PyArg_Parse(args, "w#", &ptr, &ntodo))
return NULL;
This causes a problem on Alpha / Tru64 / OSF1 v5.1
where size_t is a long and sizeof(long) != sizeof(int).
The patch I'm proposing declares ntodo as an int. An
alternative might be to redefine w# to expect size_t.
[We can't change w# because there are probably third party modules
relying on it. GvR]
1. configure doesn't handle HP-UX release numbers
(e.g., B.11.00), resulting in MACHDEP = "hpuxB".
2. After checking for wchar.h, configure doesn't
include it when checking the size of wchar_t.
(Python 2.2b1 on HP-UX 11.00)
This adds unsetenv to posix, and uses it in the __delitem__ method of
os.environ.
(XXX Should we change the preferred name for putenv to setenv, for
consistency?)
This is a big one, touching lots of files. Some of the platforms
aren't tested yet. Briefly, this changes the return value of the
os/posix functions stat(), fstat(), statvfs(), fstatvfs(), and the
time functions localtime(), gmtime(), and strptime() from tuples into
pseudo-sequences. When accessed as a sequence, they behave exactly as
before. But they also have attributes like st_mtime or tm_year. The
stat return value, moreover, has a few platform-specific attributes
that are not available through the sequence interface (because
everybody expects the sequence to have a fixed length, these couldn't
be added there). If your platform's struct stat doesn't define
st_blksize, st_blocks or st_rdev, they won't be accessible from Python
either.
(Still missing is a documentation update.)
This changes Pythread_start_thread() to return the thread ID, or -1
for an error. (It's technically an incompatible API change, but I
doubt anyone calls it.)
This patch changes to logic to:
if env.var. set and non-empty:
if env.var. is an integer:
set flag to that integer
if flag is zero: # [actually, <= 0 --GvR]
set flag to 1
Under this patch, anyone currently using
PYTHONVERBOSE=yes will get the same output as before.
PYTHONVERBNOSE=2 will generate more verbosity than
before.
The only unusual case that the following three are
still all equivalent:
PYTHONVERBOSE=yespleas
PYTHONVERBOSE=1
PYTHONVERBOSE=0
call, or via setting an instance or class vrbl.
Rewrote the calibration docs.
Modern boxes are so friggin' fast, and a profiler event does so much work
anyway, that the cost of looking up an instance vrbl (the bias constant)
per profile event just isn't a big deal.
actual run of the profiler, instead of timing a simplified simulation of
part of what the profiler does. It computes a constant about 60% higher
on my Win98SE box than the old method, and the new constant appears much
more realistic. Deleted the undocumented simple(), instrumented(), and
profiler_simulation() methods (which existed only to support the previous
calibration method).
from Tim Hochberg. Also mucho fiddling to change the way doctest
determines whether a thing is a function, module or class. Under 2.2,
this really requires the functions in inspect.py (e.g., types.ClassType
is close to meaningless now, if not outright misleading).
Generalize PyLong_AsLongLong to accept int arguments too. The real point
is so that PyArg_ParseTuple's 'L' code does too. That code was
undocumented (AFAICT), so documented it.
- property() now takes 4 keyword arguments: fget, fset, fdel, doc.
Note that the real purpose of the 'f' prefix is to make fdel fit in
('del' is a keyword, so can't used as a keyword argument name).
- These map to visible readonly attributes 'fget', 'fset', 'fdel',
and '__doc__' in the property object.
- fget/fset/fdel weren't discoverable from Python before.
- __doc__ is new, and allows to associate a docstring with a property.
iterable object. I'm not sure how that got overlooked before!
Got rid of the internal _PySequence_IterContains, introduced a new
internal _PySequence_IterSearch, and rewrote all the iteration-based
"count of", "index of", and "is the object in it or not?" routines to
just call the new function. I suppose it's slower this way, but the
code duplication was getting depressing.
Curious: the MS docs say stati64 etc are supported even on Win95, but
Win95 doesn't support a filesystem that allows partitions > 2 Gb.
test_largefile: This was opening its test file in text mode. I have no
idea how that worked under Win64, but it sure needs binary mode on Win98.
BTW, on Win98 test_largefile runs quickly (under a second).
requires that errno ever get set, and it looks like glibc is already
playing that game. New rules:
+ Never use HUGE_VAL. Use the new Py_HUGE_VAL instead.
+ Never believe errno. If overflow is the only thing you're interested in,
use the new Py_OVERFLOWED(x) macro. If you're interested in any libm
errors, use the new Py_SET_ERANGE_IF_OVERFLOW(x) macro, which attempts
to set errno the way C89 said it worked.
Unfortunately, none of these are reliable, but they work on Windows and I
*expect* under glibc too.
getting Infs, NaNs, or nonsense in 2.1 and before; in yesterday's CVS we
were getting OverflowError; but these functions always make good sense
for positive arguments, no matter how large).
the fiddling is simply due to that no caller of PyLong_AsDouble ever
checked for failure (so that's fixing old bugs). PyLong_AsDouble is much
faster for big inputs now too, but that's more of a happy consequence
than a design goal.
bag. It's clearly wrong for classic classes, at heart because a classic
class doesn't have a __class__ attribute, and I'm unclear on whether
that's feature or bug. I'll repair this once I find out (in the
meantime, dir() applied to classic classes won't find the base classes,
while dir() applied to a classic-class instance *will* find the base
classes but not *their* base classes).
Please give the new dir() a try and see whether you love it or hate it.
The new dir([]) behavior is something I could come to love. Here's
something to hate:
>>> class C:
... pass
...
>>> c = C()
>>> dir(c)
['__doc__', '__module__']
>>>
The idea that an instance has a __doc__ attribute is jarring (of course
it's really c.__class__.__doc__ == C.__doc__; likewise for __module__).
OTOH, the code already has too many special cases, and dir(x) doesn't
have a compelling or clear purpose when x isn't a module.
Stephen Hansen reported via email that he didn't finish the port to
Borland C, so remove the old item saying it worked and add a new item
saying what I know; I've asked Stephen for more details.
- Do not compile unicodeobject, unicodectype, and unicodedata if Unicode is disabled
- check for Py_USING_UNICODE in all places that use Unicode functions
- disables unicode literals, and the builtin functions
- add the types.StringTypes list
- remove Unicode literals from most tests.
__dict__ attribute. Deleting it, or setting it to a non-dictionary
result in a TypeError. Note that getting it the first time magically
initializes it to an empty dict so that func.__dict__ will always
appear to be a dictionary (never None).
Closes SF bug #446645.
LettError, Erik van Blokland, http://www.letterror.com/
the Python Windows installer finally has an attractive Pythonic bitmap
to delight the senses and dampen the fears of the millions and millions of
eager new Windows users anticipating their first Python programming joy.
Always knew Mac users secretly wanted to switch to Windows <wink>.
list.
Present the URLs at the bottom in a consistent manner, conforming to the
style guide.
Remove the lone use of "e.g.", which the style guide does not allow.
(Tim & I should agree on where to add new additions: I add them at the
top, Tim adds them at the bottom. I like the top better because folks
who occasionally check out the NEWS file will see the latest news
first.)
additional offset is only applied to continuation lines for block
opening statements.
(py-compute-indentation): Only add py-continuation-offset if
py-statement-opens-block-p is true.
This completes the q/Q project.
longobject.c _PyLong_AsByteArray: The original code had a gross bug:
the most-significant Python digit doesn't necessarily have SHIFT
significant bits, and you really need to count how many copies of the sign
bit it has else spurious overflow errors result.
test_struct.py: This now does exhaustive std q/Q testing at, and on both
sides of, all relevant power-of-2 boundaries, both positive and negative.
NEWS: Added brief dict news while I was at it.
native mode, and only when config #defines HAVE_LONG_LONG. Standard mode
will eventually treat them as 8-byte ints across all platforms, but that
likely requires a new set of routines in longobject.c first (while
sizeof(long) >= 4 is guaranteed by C, there's nothing in C we can rely
on x-platform to hold 8 bytes of int, so we'll have to roll our own;
I'm thinking of a simple pair of conversion functions, Python long
to/from sized vector of unsigned bytes; that may be useful for GMP
conversions too; std q/Q would call them with size fixed at 8).
test_struct.py: In addition to adding some native-mode 'q' and 'Q' tests,
got rid of unused code, and repaired a non-portable assumption about
native sizeof(short) (it isn't 2 on some Cray boxes).
libstruct.tex: In addition to adding a bit of 'q'/'Q' docs (more needed
later), removed an erroneous footnote about 'I' behavior.
Armin Rigo pointed out that the way the line-# table got built didn't work
for lines generating more than 255 bytes of bytecode. Fixed as he
suggested, plus corresponding changes to pyassem.py, plus added some
long overdue docs about this subtle table to compile.c.
Bugfix candidate (line numbers may be off in tracebacks under -O).
code, less memory. Tests have uncovered no drawbacks. Christian and
Vladimir are the other two people who have burned many brain cells on the
dict code in recent years, and they like the approach too, so I'm checking
it in without further ado.
instead of multiplication to generate the probe sequence. The idea is
recorded in Python-Dev for Dec 2000, but that version is prone to rare
infinite loops.
The value is in getting *all* the bits of the hash code to participate;
and, e.g., this speeds up querying every key in a dict with keys
[i << 16 for i in range(20000)] by a factor of 500. Should be equally
valuable in any bad case where the high-order hash bits were getting
ignored.
Also wrote up some of the motivations behind Python's ever-more-subtle
hash table strategy.
*are* obsolete; three variables and the maketrans() function are not
(yet) obsolete.
Add a compensating warnings.filterwarnings() call to test_strop.py.
Add this to the NEWS.
elements when crunching a list, dict or tuple. Now takes linear time
instead -- huge speedup for even moderately large containers, and the
code is notably simpler too.
Added some basic "is the output correct?" tests to test_pprint.
The comment following used to say:
/* We use ~hash instead of hash, as degenerate hash functions, such
as for ints <sigh>, can have lots of leading zeros. It's not
really a performance risk, but better safe than sorry.
12-Dec-00 tim: so ~hash produces lots of leading ones instead --
what's the gain? */
That is, there was never a good reason for doing it. And to the contrary,
as explained on Python-Dev last December, it tended to make the *sum*
(i + incr) & mask (which is the first table index examined in case of
collison) the same "too often" across distinct hashes.
Changing to the simpler "i = hash & mask" reduced the number of string-dict
collisions (== # number of times we go around the lookup for-loop) from about
6 million to 5 million during a full run of the test suite (these are
approximate because the test suite does some random stuff from run to run).
The number of collisions in non-string dicts also decreased, but not as
dramatically.
Note that this may, for a given dict, change the order (wrt previous
releases) of entries exposed by .keys(), .values() and .items(). A number
of std tests suffered bogus failures as a result. For dicts keyed by
small ints, or (less so) by characters, the order is much more likely to be
in increasing order of key now; e.g.,
>>> d = {}
>>> for i in range(10):
... d[i] = i
...
>>> d
{0: 0, 1: 1, 2: 2, 3: 3, 4: 4, 5: 5, 6: 6, 7: 7, 8: 8, 9: 9}
>>>
Unfortunately. people may latch on to that in small examples and draw a
bogus conclusion.
test_support.py
Moved test_extcall's sortdict() into test_support, made it stronger,
and imported sortdict into other std tests that needed it.
test_unicode.py
Excluced cp875 from the "roundtrip over range(128)" test, because
cp875 doesn't have a well-defined inverse for unicode("?", "cp875").
See Python-Dev for excruciating details.
Cookie.py
Chaged various output functions to sort dicts before building
strings from them.
test_extcall
Fiddled the expected-result file. This remains sensitive to native
dict ordering, because, e.g., if there are multiple errors in a
keyword-arg dict (and test_extcall sets up many cases like that), the
specific error Python complains about first depends on native dict
ordering.
Allow module getattr and setattr to exploit string interning, via the
previously null module object tp_getattro and tp_setattro slots. Yields
a very nice speedup for things like random.random and os.path etc.
Fixed a half dozen ways in which general dict comparison could crash
Python (even cause Win98SE to reboot) in the presence of kay and/or
value comparison routines that mutate the dict during dict comparison.
Bugfix candidate.
d1 == d2 and d1 != d2 now work even if the keys and values in d1 and d2
don't support comparisons other than ==, and testing dicts for equality
is faster now (especially when inequality obtains).
NEEDS DOC CHANGES.
More AttributeErrors transmuted into TypeErrors, in test_b2.py, and,
again, this strikes me as a good thing.
This checkin completes the iterator generalization work that obviously
needed to be done. Can anyone think of others that should be changed?
NEEDS DOC CHANGES
A few more AttributeErrors turned into TypeErrors, but in test_contains
this time.
The full story for instance objects is pretty much unexplainable, because
instance_contains() tries its own flavor of iteration-based containment
testing first, and PySequence_Contains doesn't get a chance at it unless
instance_contains() blows up. A consequence is that
some_complex_number in some_instance
dies with a TypeError unless some_instance.__class__ defines __iter__ but
does not define __getitem__.
to string.join(), so that when the latter figures out in midstream that
it really needs unicode.join() instead, unicode.join() can actually get
all the sequence elements (i.e., there's no guarantee that the sequence
passed to string.join() can be iterated over *again* by unicode.join(),
so string.join() must not pass on the original sequence object anymore).
because PySequence_Fast() started working for free as soon as
PySequence_Tuple() learned how to work with iterators. For some reason
unicode.join() still doesn't work, though.
NEEDS DOC CHANGES.
This one surprised me! While I expected tuple() to be a no-brainer, turns
out it's actually dripping with consequences:
1. It will *allow* the popular PySequence_Fast() to work with any iterable
object (code for that not yet checked in, but should be trivial).
2. It caused two std tests to fail. This because some places used
PyTuple_Sequence() (the C spelling of tuple()) as an indirect way to test
whether something *is* a sequence. But tuple() code only looked for the
existence of sq->item to determine that, and e.g. an instance passed
that test whether or not it supported the other operations tuple()
needed (e.g., __len__). So some things the tests *expected* to fail
with an AttributeError now fail with a TypeError instead. This looks
like an improvement to me; e.g., test_coercion used to produce 559
TypeErrors and 2 AttributeErrors, and now they're all TypeErrors. The
error details are more informative too, because the places calling this
were *looking* for TypeErrors in order to replace the generic tuple()
"not a sequence" msg with their own more specific text, and
AttributeErrors snuck by that.
NEEDS DOC CHANGES.
Possibly contentious: The first time s.next() yields StopIteration (for
a given map argument s) is the last time map() *tries* s.next(). That
is, if other sequence args are longer, s will never again contribute
anything but None values to the result, even if trying s.next() again
could yield another result. This is the same behavior map() used to have
wrt IndexError, so it's the only way to be wholly backward-compatible.
I'm not a fan of letting StopIteration mean "try again later" anyway.
to no longer insist that len(seq) be defined.
NEEDS DOC CHANGES.
This is meant to be a model for how other functions of this ilk (max,
filter, etc) can be generalized similarly. Feel encouraged to grab your
favorite and convert it!
Note some cute consequences:
list(file) == file.readlines() == list(file.xreadlines())
list(dict) == dict.keys()
list(dict.iteritems()) = dict.items()
list(xrange(i, j, k)) == range(i, j, k)
must now initialize the extra field used by the weak-ref machinery to
NULL themselves, to avoid having to require PyObject_INIT() to check
if the type supports weak references and do it there. This causes less
work to be done for all objects (the type object does not need to be
consulted to check for the Py_TPFLAGS_HAVE_WEAKREFS bit).
SF patch #103683: Alternative dll version resources.
Changes similar to the patch. MarkH should review.
File version and Product version text strings now 2.1a2.
64-bit file and product version numbers are now
PY_MAJOR_VERSION, PY_MINOR_VERSION, messy, PYTHON_API_VERSION
where
messy = PY_MICRO_VERSION*1000 + PY_RELEASE_LEVEL*10 + PY_RELEASE_SERIAL
Updated company name to "Digital Creations 2".
Copyright now lists Guido; "C in a circle" symbol used instead of (C).
Comments added so this is less likely to get flubbed again, and
#if/#error guys added to trigger if the version number manipulations
above overflow.
Add note about _symtable.
Add note that 'from ... import *' restriction may go away -- and move
the whole entry closer to the top, because it might bite people.
internal states. Put the old .seed() (which could only get at about
the square root of the # of possibilities) under the new name .whseed(),
for bit-level compatibility with older versions. This occurred to me
while reviewing effbot's book (he found himself stumbling over .seed()
more than once there ...).
- All constructors grow an optional argument `factory' which is a
callable used when new message instances are created by the next()
methods. Defaults to the rfc822.Message class.
- A new subclass of UnixMailbox is added, called PortableUnixMailbox.
It's identical to UnixMailbox, but uses a more portable test for
From_ delimiter lines. With PortableUnixMailbox, any line that
starts with "From " is considered a delimiter (this should really
check for two newlines before the F, but it doesn't.
SF patch http://sourceforge.net/patch/?func=detailpatch&patch_id=103453&group_id=5470
PyMember_Set of T_CHAR always raises exception.
Unfortunately, this is a use of a C API function that Python itself never makes, so
there's no .py test I can check in to verify this stays fixed. But the fault in the
code is obvious, and Dave Cole's patch just as obviously fixes it.
got broken). Also added new method .jumpahead(N). This finally gives us
a semi-decent answer to how Python's RNGs can be used safely and efficiently
in multithreaded programs (although it requires the user to use the new
machinery!).
functionality of, whrandom.py. Also closes all the "XXX" todos in
random.py. New frequently-requested functions/methods getstate() and
setstate(). All exported functions are now bound methods of a hidden
instance. Killed all unintended exports. Updated the docs.
FRED: The more I fiddle the docs, the less I understand the exact
intended use of the \var, \code, \method tags. Please review critically.
GUIDO: See email. I updated NEWS as if whrandom were deprecated; I
think it should be.
ctime, gmtime and localtime optional, defaulting to 'the current time' in
all cases. Adjust docs, add news item. Also convert all argument-handling to
METH_VARARGS. Closes SF patch #103265.
- Changed description of rich comparisons to emphasize that < and >
(etc.) are each other's reflection. Also use this word in the note
about the demise of __rcmp__.
except that it always returns Unicode objects.
A new C API PyObject_Unicode() is also provided.
This closes patch #101664.
Written by Marc-Andre Lemburg. Copyright assigned to Guido van Rossum.
Christmas present to myself: the bisect module didn't define what
happened if the new element was already in the list. It so happens
that it inserted the new element "to the right" of all equal elements.
Since it wasn't defined, among other bad implications it was a mystery
how to use bisect to determine whether an element was already in the
list (I've seen code that *assumed* "to the right" without justification).
Added new methods bisect_left and insort_left that insert "to the left"
instead; made the old names bisect and insort aliases for the new names
bisect_right and insort_right; beefed up docstrings to explain what
these actually do; and added a std test for the bisect module.
delimiter, watch out for backslash escaped delimiters. Also use =
instead of eq for character comparison (because a character is = to
it's integer value, but not eq to it).
In the limits.h comment, noted that INT_MAX and LONG_MAX are guaranteed
to be defined.
Noted that Reliant UNIX now gets proper API support for extension modules.
reverse() didn't work at all due to bad arg check.
Fixed that.
Added Brad Chapman to ACKS file, as the proud new owner of two
implicitly copyrighted lines of Python source code <wink>.
Repaired buffer_info's total lack of arg-checking.
Replaced memmove by memcpy in reverse() guts, as memmove is
often slower and the memory areas are guaranteed disjoint.
Replaced poke-and-hope unchecked decl of tmp buffer size by
assert-checked larger tmp buffer.
Got rid of inconsistent spaces before open paren in docstrings.
Added reverse() sanity tests to test_array.py.
XXX notes for now.
I could use help here!!!! Please mail me patches ASAP. We may have
to put some of this off to 2.0final, but it's best to have it in shape
now...
the Python Unicode implementation.
The internal buffer used for implementing the buffer protocol
is renamed to defenc to make this change visible. It now holds the
default encoded version of the Unicode object and is calculated
on demand (NULL otherwise).
Since the default encoding defaults to ASCII, this will mean that
Unicode objects which hold non-ASCII characters will no longer
work on C APIs using the "s" or "t" parser markers. C APIs must now
explicitly provide Unicode support via the "u", "U" or "es"/"es#"
parser markers in order to work with non-ASCII Unicode strings.
(Note: this patch will also have to be applied to the 1.6 branch
of the CVS tree.)
Montanaro, handle execution of indented regions by inserting an "if
1:" in front of the block. This better preserves things like triple
quoted strings and commented regions. This patch resolves PR#264.
1.5.2 was released, except those who contributed only to Doc files --
Fred has his own way of doing this.
This doesn't mean that I've got everyone who contributed *before*
1.5.2 was released in here... :-(
executive summary:
Instead of typing 'apply(f, args, kwargs)' you can type 'f(*arg, **kwargs)'.
Some file-by-file details follow.
Grammar/Grammar:
simplify varargslist, replacing '*' '*' with '**'
add * & ** options to arglist
Include/opcode.h & Lib/dis.py:
define three new opcodes
CALL_FUNCTION_VAR
CALL_FUNCTION_KW
CALL_FUNCTION_VAR_KW
Python/ceval.c:
extend TypeError "keyword parameter redefined" message to include
the name of the offending keyword
reindent CALL_FUNCTION using four spaces
add handling of sequences and dictionaries using extend calls
fix function import_from to use PyErr_Format
The attached patch set includes a workaround to get Python with
Unicode compile on BSDI 4.x (courtesy Thomas Wouters; the cause
is a bug in the BSDI wchar.h header file) and Python interfaces
for the MBCS codec donated by Mark Hammond.
Also included are some minor corrections w/r to the docs of
the new "es" and "es#" parser markers (use PyMem_Free() instead
of free(); thanks to Mark Hammond for finding these).
The unicodedata tests are now in a separate file
(test_unicodedata.py) to avoid problems if the module cannot
be found.
Attached you find the latest update of the Unicode implementation.
The patch is against the current CVS version.
It includes the fix I posted yesterday for the core dump problem
in codecs.c (was introduced by my previous patch set -- sorry),
adds more tests for the codecs and two new parser markers
"es" and "es#".
Attached you find an update of the Unicode implementation.
The patch is against the current CVS version. I would appreciate
if someone with CVS checkin permissions could check the changes
in.
The patch contains all bugs and patches sent this week and also
fixes a leak in the codecs code and a bug in the free list code
for Unicode objects (which only shows up when compiling Python
with Py_DEBUG; thanks to MarkH for spotting this one).
(python): Set defgroup :prefix to "py-" to make variable names cleaner.
(py-jpython-command, py-jpython-command-args): Set :tag for proper
capitalization of JPython in variable name display.
first time a py buffer is visited during the Emacs session. This
ensures that py-which-shells is initialized and also guarantees that
the mode lines reflect the correct shell. First bug found by GvR,
second one has long bugged :) me.
(py-toggle-shells): Programmatically, arg can also take the symbols
`cpython' or `jpython', which makes it easy to call with the value of
py-default-interpreter.
(py-shell): Don't need to initialize py-which-* variables since these
will guarantee to be initialized by python-mode when the first py
buffer is visited.
(py-default-interpreter): Update docstring.
casing when py-honor-comment-indentation is nil, but this could be a
religious issue with some. Seems to me we should still be dedenting
such comment lines one level.
buffer-syntactic-context -- just short circuit the TQS test by jumping
to point-min and doing the test from there. For long files, this will
be faster than looping with a re-search-backwards.
I don't know what its origins are but I think I've seen it
once in a NeXT dictionary application -- not sure whether
anyone owns copyright but I don't see why we should risk it.
py-newline-and-indent. These ought to get picked up by the mapcar
that follows; any existing binding to newline-and-indent gets shadowed
to py-newline-and-indent.
This will break some people who, e.g. bind C-m or C-j to newline but
still want these bound to py-newline-and-indent in Python mode. On
the other hand, the forced binding pisses off Emacs diehards. So
consider this experimental and see if any tall Dutch guys complain :-)
standard narrow-to-defun but works with Python classes and methods.
With no arg, narrows to most enclosing def/method. With C-u arg,
narrows to most enclosing class.
string we find ourselves in, based on the passed in delimiter.
(py-compute-indentation): Fixes for indentation errors when we land
inside a triple quoted string. For example:
def foo():
if os.path.isfile(o_pri_mbox_file) and os.path.isfile(o_pub_mbox_file):
print """\
I found both a private and a public mbox archive file
private: %s
public : %s
I won't move either file, but you should choose one and move it to
%s
You may want to merge them manually, but be careful about exposing private
correspondences to the public.""" % (
o_pri_mbox_file, o_pub_mbox_file, mbox_file)
*----indentation would be wrong on this line.
#simple things. First step: rename the Imenu supportive variables and
#functions in this file to py-imenu-* so I can grok what is part of
#python-mode and what is part of Imenu.
(py-imenu-create-index-engine): Fixed problem with two classes in a
single file, caused by new semantics of py-beginning-of-def-or-class
when called programmatically.
#Note, there are still some problems with Imenu when arguments to
#functions are funky, but it should be much better now.
string in the argument to execfile() so a Windows temp directory
named, e.g. c:\\tmp doesn't get interpreted as a file name with an
embedded tab! (given by C. Waldman).
this string should not end with whitespace.
(py-compute-indentation): Append whitespace regexp to
py-block-comment-prefix so that any combination of intervening
whitespace will be recognized.
change error messages to be a little more straightforward
change definition of FULL_PATH so that an error is raised if the
setuid wrapper is used un-edited
shell buffers.
(py-shell): Moved the require of comint to the top level. Also
use-local-map py-shell-map instead of hacking on the comint-mode-map.
This eliminates breakage of other comint-mode buffers (e.g. shell).
interactions with newer Emacsen, I've rewritten the way all the
process filters work in the *Python* buffer. We use more of the
comint infrastructure, specifically the default process filter. This
means that scrolling is now handled by the default comint variables
including comint-scroll-to-bottom-on-output. Note that this is
somewhat experimental change!
(py-comint-output-filter-function): Moved to here from the obsolete
py-process-filter function, the logic to pop and exec the next queued
file waiting to be executed.
(py-execute-file): Don't bind comint-scroll-to-bottom-on-output to t,
and save the excursion when inserting the "working on" message. This
lets the standard comint scrolling variables as set by the user,
continue to work.
(python-mode, py-shell, py-describe-mode): Remove description of
py-scroll-process-buffer. Also in py-shell, make
comint-output-filter-functions buffer-local, and add
py-comint-output-filter-function to this hook (instead of setting the
process filter).
(py-scroll-process-buffer): Deleted this variable. See comint
variables including comint-scroll-to-bottom-on-output.
(py-execute-region): When exec files are being queued, push the next
temp file on the end of the list.
(py-submit-bug-report): Removed reporting of py-scroll-process-buffer.
"3.67 fixes Imenu as far as classes are concerned, but some default
values for function arguments are still not supported."
This ought to fix that problem.
indetnation of normal statements: The regular expression that searches
for indenting comment lines has been changed to not require a
space/tab after the first `#'. We then explicitly look for
py-block-comment-prefix depending on the value of
py-honor-comment-indentation.
I think this more accurately reflects the documentation for
py-honor-comment-indentation.
conformations, etc., etc. inspired and given by Michael Ernst. These
include error string fixes, moving of comments to docstrings, some
other non-related typos, terminology standardizing (b/w TP and myself,
and b/w myself and myself :-) although more can still be done.
E.g. "outdenting" => "dedenting".
serial number isn't enough to uniquify the temp file name -- what if
two users are on the same machine? Add in the (emacs-pid) to help
further. Should never be tickled on Emacs 20, XEmacs 20, 21.
py-mark-def-or-class): Integrated Michael Ernst latest patches.
Primarily, it allows functions that search or mark defs/classes based
on programmatic specification, to take an 'either flag value which
allows searching for both classes and defs (stopping at the nearest
construct).
Also clean up some docstrings.
comment-indent-function's default lambda value (in simple.el), this
version finally kills this nit: auto-filling a comment that starts in
column zero with filladapt turned off would cascade the #'s to the
right.
Now auto-filling seems to work with or without filladapt, and with the
comment starting in any column.
(python-mode): Set comment-indent-function.
(py-execute-import-or-reload): Cool new command that imports or
reloads the current file as a module, so as not to clutter the global
namespace. Bound to C-c C-m.
(py-execute-def-or-class): New command that sends the current def or
class to the interpreter. Bound to C-M-x.
(py-execute-string): New command that sends arbitrary string to the
interpreter. Not bound by default.
(py-describe-mode): Doco updates.
py-beginning-of-def-or-class, and defaliased for backwards
compatibility. ME patch to add optional second argument, count.
(end-of-python-def-or-class): Renamed to py-end-of-def-or-class, and
defaliased for backwards compatibility. ME patch to add optional
second argument, count.
(py-shell): Recognize the Python debugger prompt
(py-jump-to-exception): Force into python-mode any buffer that gets
jumped to on exception. Cope with py-exception-buffer possibly a
cons.
JPython interpreters. This implementation may suck.
(py-jpython-command, py-jpython-command-args): New variables.
(py-mode-map): py-toggle-shells bound to C-c C-t
(py-toggle-shells): Command to toggle between using CPython (the
default) and JPython. This is buffer local, and notice the mode-name
change.
(py-shell): Use either CPython or JPython. Note that py-execute-*
still needs to be modified.
an open paren, do a better job of reindenting the line. For example:
def foo():
print 'hello %s, %d' % (
a, b)
Hit TAB on the line starting with `a'. Without this patch this line
will never be reindented.
(py-compute-indentation): int-to-char isn't defined in Emacs, but we
don't really need it anyway, so just remove this conversion. XEmacs
is happy either way.
(py-parse-state): The Emacs branch (i.e. w/o buffer-syntactic-context)
wasn't adjusting point correctly.
otherwise return nil.
(py-execute-region): When executing the buffer asynchronously in a
subprocess, if an exception occurred, show both the output buffer and
the file containing the exception, leaving point on the source line
containing bottom-most error in the traceback. If no exception
occurred, jump to the output buffer (no change).
from CC Mode.
(py-guess-indent-offset): Teach it about colons in `literals'
(e.g. comments and strings). Don't false hit colons in literals; keep
searching for a real block introducing line.
of a line in py-tab-face to aid in seeing mixed tab/space indentation.
This face defaults to the `default' face so it is unobtrusive until
you `M-x customize-face' py-tab-face to something obnoxious like
"Yellow".
setting of py-indent-offset and indent-tabs-mode.
(python-mode): After python-mode-hook is run, do the automagic
calculation if py-smart-indentation is non-nil.
(py-parse-state): Get rid of unused variable to quiet the
byte-compiler.
over and around triple-quoted strings:
- move the beginning-of-line to above the p-p-s call
- in the `t' clause of the big cond, where we skip over
triple-quoted strings, first find out if we're looking at a
single or TQS, then skip over it in one fell swoop, instead of
trying to loop over skipage of SQS's.
(py-parse-state): Implement XEmacs only hack to more accurately figure
out whether we're in a string or not. Can't do this in Emacs because
it lacks the necessary primitive, so we just do it the old (and mostly
accurate, but foolable) way for Emacs.
continuation lines. This fixes this bug report, reported by Frank
Stajano.
# But if I split the "raise" line and reindent, the else WRONGLY goes up a
# level (?!?)
while condition1:
if condition2:
raise error3, \
moreInfo4
else: # meant to close "if condition2"
action5()
a religious issue: RMS decrees that the Enter (RET) key should just do
a newline and a LFD (C-j) should do a newline and indent (i.e. the
python-mode version of this). Almost everyone I know disagrees and
finds that RET should do newline and indent. Almost everyone hacks
their modes to do this, if they know how. Because it's hard for
newbies to figure out how to do this, and because most DOS keyboards
lack a LFD (leaving users to the more obscure C-j), I think it makes
better sense to add this default binding.
is based on the line above, watch out for landing inside a triple
quoted string. In this case, use iterative search +
parse-partial-sexp backwards to find the beginning of the string.
Note this does affect performance, but very little in the common cases
(I hope). It could be made *much* faster by adding Emacs and XEmacs
dependent code -- different code naturally. :-(
Fixes the following reported bug:
if len(sys.argv) >= 6:
# More lines here
fptr = open('/etc/hosts', 'w')
fptr.write("""# /etc/hosts -- autocreated by /etc/ppp/ip-up
#
# Address from pppd
%-15s %s
# For loopbacking
127.0.0.1 localhost
255.255.255.255 broadcast
""" % (ipaddr, ipname) )
os.chmod('/etc/hosts', 0644)
file local variable section of a file. When set, and the user hits
C-c C-c, this file gets executed instead of the buffer's file. Idea
given by Roy Dragseth <royd@math.uit.no>, but implemented differently.
(py-execute-buffer): Support py-master-file variable. If this names a
relative path, default-directory is prepended via expand-file-name.
(python-mode): Conditionalize imenu initializations to when we can
safely require imenu. Under Emacs this should prevent python-mode
from hosing the global value of imenu-create-index-function and
messing things up for all other modes. Problem identified by
Christian Egli.
(py-describe-mode): py-delete-char => py-electric-backspace. Given by
Christian Egli.
(imenu-example--create-python-index-engine): Use
buffer-substring-no-properties. Also, don't use
imenu-create-submenu-name. Apparently it is obsolete.
These Imenu patches were given by Christian Egli
<christian.egli@stest.ch>
py-keep-region-active so that the marked def/class gets the
zmacs-region or transient-mark region highlighted. Also point should
be left at the end of the marked region.
(py-mode-map): Moved py-mark-def-or-class to M-C-h to conform to Emacs
major mode standards.
to the Web site.
(py-defun-start-re, py-class-start-re): Changed to defconst.
(py-traceback-line-re): Regular expression describing what traceback
lines look like.
(py-point): New defsubst copied from CC Mode.
(py-highlight-line): Function which does the work of making a
traceback line mouseable. This only works on XEmacs. Someone familar
with Emacs text properties and such will have to do that port.
(py-mode-map): Added C-c- bound to py-up-exception and C-c= bound to
py-down-exception. Also, more concise form for mapcar.
(py-mode-output-map): New keymap for the *Python Output* buffer which
only has keybindings for py-mouseto-exception and py-goto-exception.
All other self-insert-command's are bound to beep. This is actually
bogus because the buffer should really be made read-only and the
functions that insert in that buffer should bind inhibit-read-only.
Also, this map should be bound to highlighted extents in a *Python*
shell buffer, but this stuff hasn't been migrated into there.
(py-postprocess-output-buffer): New function which extentifies the
*Python Output* buffer. The bogosities are that this only runs when
the synchronous process in the buffer is finished (so it doesn't work
for async procs), and it should also be merged into py-process-filter
so the *Python* shell gets mouseable too.
(py-shell): Added C-c- and C-c= to the comint buffer's keymap. The
bogosity is that py-goto-exception should also be bound, but it cannot
be bound to C-cC-c (since that interferes with
comint-interrupt-subjob's typical binding). Also, traceback lines
aren't mouseable in this buffer.
(py-execute-region): Support for traceback jumping. This really is
quite a kludge, but necessary based on the way all this stuff works.
There's bound to be broken interactions here.
(py-jump-to-exception, py-mouseto-exception, py-goto-exception,
py-find-next-exception, py-down-exception, py-up-exception): All new
commands and functions to implement traceback jumping.
(py-compute-indentation): Hope this change doesn't get lost in all the
noise above!!!! This fixes broken non-indentation of a line when TAB
is hit inside a string that isn't a multi-line string.
immediately following colons. Sjoerd noticed this one too. Here's a
nonsense.py file that flexes all the font-lock keyword combinations.
class A:
class B(A):
pass
def __init__(self):
if i == 2 and j == 3 or k == 4:
import stuff
from otherstuff import cool
for i in range(cool.count):
if i == j:
break
elif j == 1:
continue
print i
else:
return not i
elif q is not i:
return lambda x: x + 1
else:
try:
try:
raise stuff.error
except stuff.error, v:
print v
except:
global q
finally:
while q > 0:
q = q - 1
assert q == 0
def make():
a = A()
exec "nonsense"
del a
on NTEmacs 19.34.6.
(py-serial-number): New variable.
(py-execute-region): If make-temp-name is broken, simply append a
serial number to the string "python-" to get a temporary file name.
It's possible concurrent NTEmacs can step on each others toes, but it
makes no sense to further coddle a busted NTEmacs.
(py-mode-map): Moved py-mark-def-or-class from M-C-h to C-c C-m since
the old binding conflicts with the standard global backward-kill-word
binding, and this new binding is more conformant with other language
modes. Moved py-mark-block to C-c C-k.
(py-electric-backspace, py-electric-delete): Support the XEmacs 20 Way
for backspace and delete mappings. In XEmacs 19, Emacs 19, and Emacs
20, both backspace and delete keysyms are bound to
py-electric-backspace. In XEmacs 20, backspace and delete keysyms are
bound separately, allowing the user to specify forward or backward
deletion of the delete keysym through the variable
delete-key-deletes-forward. All this is the Right Way To Do It and
this implementation was largely ripped from CC Mode.
(py-execute-file): Better interaction with comint. Set
comint-scroll-to-bottom-on-output to t. Wrapper buffer change in
unwind-protect in case process filter fails.
(py-shell): Start Python with -i flag to fix tty problem on Windows;
presumably -- not yet tested.
(py-clear-queue): New function to clear the pending exec file queue.
Not currently keybound.
(py-execute-region, py-execute-buffer): Added optional async flag (use
via C-u prefix) to execute the region in a new asynchrous buffer, even
if the Python shell is running.
(py-append-to-process-buffer): Removed as obsolete. Comint provides
this functionality.
Removed fbound test defun of match-string. All modern X/Emacsen have
this function.
his *own* RCS file for python-mode.el, and I've agreed that it would
be better if his version was in the Python source tree. However I
don't want to totally get rid of the old RCS file (which has
interesting info such as which version was in which Python release).
So I've moved the old one to python-mode-old.el behind the scenes,
and this checkin message indicates that I'm now deleting it.
If you do an update, you will actually get Barry's *new* version!
Introductory comment updates.
(python-font-lock-keywords): Added "assert"
(py-block-closing-keywords-re): New variable.
(py-no-outdent-re): Rewrite to use py-block-closing-keywords-re.
(py-shell): py-process-filter should no longer be necessary. Comint
should do all the work. Note that more fixes to the py-shell process
mechanism need to be done.
(py-execute-region): Check for empty region. Some questionable
changes to set-buffer after shell-command-on-region. Again, this all
needs to be closely examined for X/Emacs 19/20 compatibility.
(py-goto-beyond-final-line): py-parse-partial-sexp-works-p should no
longer be necessary.
(py-statement-closes-block-p): Use py-block-closing-keywords-re.
Currently fairly minimal, but I'll be adding to this as needed. I
think it's pretty darn close.
To use this, just load the file and in a C buffer type:
M-x c-set-style RET python RET
[there are ways to automate much of this!]
defeat extra outdentation for block closing statements (return, raise,
break, continue, pass).
(py-compute-indentation): extra argument to honor block closing
statements.
(py-electric-colon, py-indent-region): use py-compute-indentation's
extra argument
(py-statement-closes-block-p): `pass' treated as a block closing
statement.
add-change-log-entry-other-window is so bad about guessing the proper
name of Python functions, methods and variables, so finally I wrote
the following (unidiff patch against python-mode.el 2.73):
Per Cederqvist <ceder@signum.se>
right thing.
(py-comment-region): let-bind comment-start to "## " so commented
regions get transformed into non-indenting comment lines.
(py-compute-region): Implement modification to rule for recognizing
"indenting comment lines".
py-outdent-left, py-mode-map): Folded all functionality into
py-shift-region-* commands. Bound C-c C-l to py-shift-region-left and
C-c C-r to py-shift-region-right. Removed py-indent-right and
py-indent-left.
py-submit-bug-report placed on C-c C-b, and py-version placed on C-c
C-v.
(py-version, py-submit-bug-report): new functions
(py-version, py-help-address): new variables
Fred Drake
Marc-André Lemburg
Guido van Rossum
Neal Norwitz
Martin v. Löwis
Jack Jansen
Tim Peters
Barry Warsaw
Jeremy Hylton
Andrew M. Kuchling
Steve Purcell
Neil Schemenauer
Mark Hammond
Moshe Zadka
Thomas Wouters
Peter Schneider-Kamp
Vladimir Marangozov
Greg Ward