Commit Graph

851 Commits

Author SHA1 Message Date
Michael W. Hudson 5efaf7eac8 This is my nearly two year old patch
[ 400998 ] experimental support for extended slicing on lists

somewhat spruced up and better tested than it was when I wrote it.

Includes docs & tests.  The whatsnew section needs expanding, and arrays
should support extended slices -- later.
2002-06-11 10:55:12 +00:00
Martin v. Löwis a3fb4f7816 Patch #505375: Make doc strings optional. 2002-06-09 13:33:54 +00:00
Jason Tishler bc48826dc2 Patch #555929: Cygwin AH_BOTTOM cleanup patch (*** version 2 ***)
This patch complies with the following request found
near the top of configure.in:

# This is for stuff that absolutely must end up in pyconfig.h.
# Please use pyport.h instead, if possible.

I tested this patch under Cygwin, Win32, and Red
Hat Linux. Python built and ran successfully on
each of these platforms.
2002-06-04 15:07:08 +00:00
Neal Norwitz d68f5171eb As discussed on python-dev, add a mechanism to indicate features
that are in the process of deprecation (PendingDeprecationWarning).
Docs could be improved.
2002-05-29 15:54:55 +00:00
Marc-André Lemburg 4da6fd63bc Fix for bug [ 561796 ] string.find causes lazy error 2002-05-29 11:33:13 +00:00
Michael W. Hudson e5df1058f1 Silly typo. 2002-05-27 14:05:31 +00:00
Guido van Rossum cacfc07d08 - A new type object, 'string', is added. This is a common base type
for 'str' and 'unicode', and can be used instead of
  types.StringTypes, e.g. to test whether something is "a string":
  isinstance(x, string) is True for Unicode and 8-bit strings.  This
  is an abstract base class and cannot be instantiated directly.
2002-05-24 19:01:59 +00:00
Guido van Rossum 2d3b986480 Disambiguate the grammar for backtick.
The old syntax suggested that a trailing comma was OK inside backticks,
but in fact (due to ideosyncrasies of pgen) it was not.  Fix the grammar
to avoid the ambiguity.  Fred: you may want to update the refman.
2002-05-24 15:47:06 +00:00
Guido van Rossum a0a6c5a042 Add missing \ to macro definition only used when universal newlines
are disabled.
2002-05-24 15:24:38 +00:00
Martin v. Löwis 1e1fcef756 Back out #555929 2002-05-15 18:24:06 +00:00
Jason Tishler eadb6bb3c5 Patch #555929: Cygwin AH_BOTTOM cleanup patch
This patch complies with the following request found
near the top of configure.in:

# This is for stuff that absolutely must end up in pyconfig.h.
# Please use pyport.h instead, if possible.

I tested this patch under Cygwin, Win32, and Red
Hat Linux. Python built and ran successfully on
each of these platforms.
2002-05-15 11:51:33 +00:00
Martin v. Löwis 01f94bda38 Patch #552433: Special-case tuples. Avoid sub-type checking for lists.
Avoid checks for negative indices and duplicate checks for support of
the sequence protocol.
2002-05-08 08:44:21 +00:00
Neil Schemenauer b1094f0b1b _PyGC_generation0 is now a pointer 2002-05-04 05:36:06 +00:00
Martin v. Löwis 76da0c3b71 Patch #551008: DL_IMPORT PyBool_FromLong. 2002-05-02 20:23:27 +00:00
Tim Peters 8b078f95e0 Moving pymalloc along.
As threatened, PyMem_{Free, FREE} also invoke the object deallocator now
when pymalloc is enabled (well, it does when pymalloc isn't enabled too,
but in that case "the object deallocator" is plain free()).

This is maximally backward-compatible, but it leaves a bitter aftertaste.

Also massive reworking of comments.
2002-04-28 04:11:46 +00:00
Guido van Rossum 7dab2426ca - New builtin function enumerate(x), from PEP 279. Example:
enumerate("abc") is an iterator returning (0,"a"), (1,"b"), (2,"c").
  The argument can be an arbitrary iterable object.
2002-04-26 19:40:56 +00:00
Walter Dörwald de02bcb265 Apply patch diff.txt from SF feature request
http://www.python.org/sf/444708

This adds the optional argument for str.strip
to unicode.strip too and makes it possible
to call str.strip with a unicode argument
and unicode.strip with a str argument.
2002-04-22 17:42:37 +00:00
Tim Peters 51e7f5caba Moving pymalloc along.
+ Redirect PyMem_{Del, DEL} to the object allocator's free() when
  pymalloc is enabled.  Needed so old extensions can continue to
  mix PyObject_New with PyMem_DEL.

+ This implies that pgen needs to be able to see the PyObject_XYZ
  declarations too.  pgenheaders.h now includes Python.h.  An
  implication is that I expect obmalloc.o needs to get linked into
  pgen on non-Windows boxes.

+ When PYMALLOC_DEBUG is defined, *all* Py memory API functions
  now funnel through the debug allocator wrapper around pymalloc.
  This is the default in a debug build.

+ That caused compile.c to fail:  it indirectly mixed PyMem_Malloc
  with raw platform free() in one place.  This is verbotten.
2002-04-22 02:33:27 +00:00
Tim Peters 058b141ef7 Py_UniversalNewlineFread(): Many changes.
+ Continued looping until n bytes in the buffer have been filled, not
  just when n bytes have been read from the file.  This repairs the
  bug that f.readlines() only sucked up the first 8192 bytes of the file
  on Windows when universal newlines was enabled and f was opened in
  U mode (see Python-Dev -- this was the ultimate cause of the
  test_inspect.py failure).

+ Changed prototye to take a char* buffer (void* doesn't make much sense).

+ Squashed size_t vs int mismatches (in particular, besides the unsigned
  vs signed distinction, size_t may be larger than int).

+ Gets out under all error conditions now (it's possible for fread() to
  suffer an error even if it returns a number larger than 0 -- any
  "short read" is an error or EOF condition).

+ Rearranged and simplified declarations.
2002-04-21 07:29:14 +00:00
Jack Jansen 7b8c7546eb Mass checkin of universal newline support.
Highlights: import and friends will understand any of \r, \n and \r\n
as end of line. Python file input will do the same if you use mode 'U'.
Everything can be disabled by configuring with --without-universal-newlines.

See PEP278 for details.
2002-04-14 20:12:41 +00:00
Tim Peters 0e871188e8 _PyObject_DebugDumpStats: renamed to _PyObject_DebugMallocStats.
Added code to call this when PYMALLOC_DEBUG is enabled, and envar
PYTHONMALLOCSTATS is set, whenever a new arena is obtained and once
late in the Python shutdown process.
2002-04-13 08:29:14 +00:00
Tim Peters af3e8de580 First stab at rationalizing the PyMem_ API. Mixing PyObject_xyz with
PyMem_{Del, DEL} doesn't work yet (compilation problems).

pyport.h:  _PyMem_EXTRA is gone.

pmem.h:  Repaired comments.  PyMem_{Malloc, MALLOC} and
PyMem_{Realloc, REALLOC} now make the same x-platform guarantees when
asking for 0 bytes, and when passing a NULL pointer to the latter.

object.c:  PyMem_{Malloc, Realloc} just call their macro versions
now, since the latter take care of the x-platform 0 and NULL stuff
by themselves now.

pypcre.c, grow_stack():  So sue me.  On two lines, this called
PyMem_RESIZE to grow a "const" area.  It's not legit to realloc a
const area, so the compiler warned given the new expansion of
PyMem_RESIZE.  It would have gotten the same warning before if it
had used PyMem_Resize() instead; the older macro version, but not the
function version, silently cast away the constness.  IMO that was a wrong
thing to do, and the docs say the macro versions of PyMem_xyz are
deprecated anyway.  If somebody else is resizing const areas with the
macro spelling, they'll get a warning when they recompile now too.
2002-04-12 07:22:56 +00:00
Tim Peters e9e7452505 First cut at repairing out-of-date comments; make alignment of macro defs
all the same within the #ifdef WITH_PYMALLOC block.
2002-04-12 05:21:34 +00:00
Neil Schemenauer 20d0a1a071 Remove PyMalloc_* symbols. PyObject_Malloc now uses pymalloc if
it's enabled.
2002-04-12 02:39:18 +00:00
Neil Schemenauer 3e7b893899 Remove PyMalloc_* symbols. PyObject_Malloc now uses pymalloc if
it's enabled.

Allow PyObject_Del, PyObject_Free, and PyObject_GC_Del to be used as
function designators.  Provide source compatibility macros.

Make PyObject_GC_Track and PyObject_GC_UnTrack functions instead of
trivial macros wrapping functions.
2002-04-12 02:38:45 +00:00
Neil Schemenauer f6d1ea1749 Change the type of the tp_free from 'destructor' to 'freefunc'. 2002-04-12 01:57:06 +00:00
Tim Peters 2bbdba3c00 Removed more hair in support of future-generator stmts. 2002-04-12 01:20:10 +00:00
Jack Jansen 8ab04b4d65 Got rid of ifdefs for long-obsolete GUSI versions. 2002-04-11 20:46:23 +00:00
Jack Jansen 9b745f6665 Get rid of USE_CACHE_ALIGNED. It has no function anymore. 2002-04-11 20:41:18 +00:00
Mark Hammond 303d05d317 Add standard header preamble and footer, a-la intobject.h. Main purpose is extern "C" for C++ programs. 2002-04-06 03:58:41 +00:00
Guido van Rossum 2e1c09c1fd Removed old Digital Creations copyright/license notices (with
permission from Paul Everitt).  Also removed a few other references to
Digital Creations and changed the remaining ones to Zope Corporation.
2002-04-04 17:52:50 +00:00
Guido van Rossum 5f8203679d Oops. Here are the new files. My apologies. 2002-04-03 23:01:45 +00:00
Guido van Rossum 77f6a65eb0 Add the 'bool' type and its values 'False' and 'True', as described in
PEP 285.  Everything described in the PEP is here, and there is even
some documentation.  I had to fix 12 unit tests; all but one of these
were printing Boolean outcomes that changed from 0/1 to False/True.
(The exception is test_unicode.py, which did a type(x) == type(y)
style comparison.  I could've fixed that with a single line using
issubtype(x, type(y)), but instead chose to be explicit about those
places where a bool is expected.

Still to do: perhaps more documentation; change standard library
modules to return False/True from predicates.
2002-04-03 22:41:51 +00:00
Tim Peters 7ccfadf3a8 New PYMALLOC_DEBUG function void _PyMalloc_DebugDumpStats(void).
This displays stats about the # of arenas, pools, blocks and bytes, to
stderr, both used and reserved but unused.

CAUTION:  Because PYMALLOC_DEBUG is on, the debug malloc routine adds
16 bytes to each request.  This makes each block appear two size classes
higher than it would be if PYMALLOC_DEBUG weren't on.

So far, playing with this confirms the obvious:  there's a lot of activity
in the "small dict" size class, but nothing in the core makes any use of
the 8-byte or 16-byte classes.
2002-04-01 06:04:21 +00:00
Martin v. Löwis 522cf1f6fb Patch #536908: Add missing #include guards/extern "C". 2002-03-30 08:57:12 +00:00
Tim Peters 1f7df3595a Remove the CACHE_HASH and INTERN_STRINGS preprocessor symbols. 2002-03-29 03:29:08 +00:00
Neil Schemenauer ef99723b66 Add _Py_AS_GC macro. It will be used by the trashcan code on object.c. 2002-03-28 21:06:16 +00:00
Tim Peters d1139e043c PYMALLOC_DEBUG routines: The "check API family" gimmick was going nowhere
fast, and just cluttered the code.  Get rid of it for now.  If a compelling
case can be made for it, easy to restore it later.
2002-03-28 07:32:11 +00:00
Fred Drake 7bf9715a8b Introduce two new flag bits that can be set in a PyMethodDef method
descriptor, as used for the tp_methods slot of a type.  These new flag
bits are both optional, and mutually exclusive.  Most methods will not
use either.  These flags are used to create special method types which
exist in the same namespace as normal methods without having to use
tedious construction code to insert the new special method objects in
the type's tp_dict after PyType_Ready() has been called.

If METH_CLASS is specified, the method will represent a class method
like that returned by the classmethod() built-in.

If METH_STATIC is specified, the method will represent a static method
like that returned by the staticmethod() built-in.

These flags may not be used in the PyMethodDef table for modules since
these special method types are not meaningful in that case; a
ValueError will be raised if these flags are found in that context.
2002-03-28 05:33:33 +00:00
Neal Norwitz 1543c07fdf Add a comment that PyArg_GetInt is deprecated and should not be used 2002-03-25 22:21:58 +00:00
Neal Norwitz 3a6f97850b Remove many uses of PyArg_NoArgs macro, change METH_OLDARGS to METH_NOARGS. 2002-03-25 20:46:46 +00:00
Tim Peters ddea208be9 Give Python a debug-mode pymalloc, much as sketched on Python-Dev.
When WITH_PYMALLOC is defined, define PYMALLOC_DEBUG to enable the debug
allocator.  This can be done independent of build type (release or debug).
A debug build automatically defines PYMALLOC_DEBUG when pymalloc is
enabled.  It's a detected error to define PYMALLOC_DEBUG when pymalloc
isn't enabled.

Two debugging entry points defined only under PYMALLOC_DEBUG:

+ _PyMalloc_DebugCheckAddress(const void *p) can be used (e.g., from gdb)
  to sanity-check a memory block obtained from pymalloc.  It sprays
  info to stderr (see next) and dies via Py_FatalError if the block is
  detectably damaged.

+ _PyMalloc_DebugDumpAddress(const void *p) can be used to spray info
  about a debug memory block to stderr.

A tiny start at implementing "API family" checks isn't good for
anything yet.

_PyMalloc_DebugRealloc() has been optimized to do little when the new
size is <= old size.  However, if the new size is larger, it really
can't call the underlying realloc() routine without either violating its
contract, or knowing something non-trivial about how the underlying
realloc() works.  A memcpy is always done in this case.

This was a disaster for (and only) one of the std tests:  test_bufio
creates single text file lines up to a million characters long.  On
Windows, fileobject.c's get_line() uses the horridly funky
getline_via_fgets(), which keeps growing and growing a string object
hoping to find a newline.  It grew the string object 1000 bytes each
time, so for a million-character string it took approximately forever
(I gave up after a few minutes).

So, also:

fileobject.c, getline_via_fgets():  When a single line is outrageously
long, grow the string object at a mildly exponential rate, instead of
just 1000 bytes at a time.

That's enough so that a debug-build test_bufio finishes in about 5 seconds
on my Win98SE box.  I'm curious to try this on Win2K, because it has very
different memory behavior than Win9X, and test_bufio always took a factor
of 10 longer to complete on Win2K.  It *could* be that the endless
reallocs were simply killing it on Win2K even in the release build.
2002-03-23 10:03:50 +00:00
Neil Schemenauer c24ea08644 Disable the parser hacks that enabled the "yield" keyword using a future
statement.
2002-03-22 23:53:36 +00:00
Neil Schemenauer ffd5399728 Make PyObject_{NEW,New,Del,DEL} always use the standard malloc (PyMem_*)
and not pymalloc.  Add the functions PyMalloc_New, PyMalloc_NewVar, and
PyMalloc_Del that will use pymalloc if it's enabled.   If pymalloc is
not enabled then they use the standard malloc (PyMem_*).
2002-03-22 15:25:18 +00:00
Tim Peters fbb556df15 Arrange to export the _PyMalloc_{Malloc, Realloc, Free} entry points. On
Windows some modules are considered (by me, and I don't care what anyone
else thinks about this <wink>) to be part of "the core" despite that they
happen to be compiled into separate DLLs (the "to DLL or not to DLL?"
question on Windows is nearly arbitrary).  Making the pymalloc entry
points available to them allows the Windows build to complete without
incident when WITH_PYMALLOC is #define'd.

Note that this isn't unprecedented.  Other "private API" functions we
export include _PySequence_IterSearch, _PyEval_SliceIndex, _PyCodec_Lookup,
_Py_ZeroStruct, _Py_TrueStruct, _PyLong_New and _PyModule_Clear.
2002-03-20 04:02:31 +00:00
Andrew M. Kuchling 913b9078cf [Bug #528914] PyTraceBack_Store/Fetch were deleted in 1997, but their
prototypes remain.  Noted by Yakov Markovitch.

Bugfix candidate.
2002-03-19 16:02:35 +00:00
Neil Schemenauer 25f3dc21b5 Drop the PyCore_* memory API. 2002-03-18 21:06:21 +00:00
Neil Schemenauer 11f5be8d88 Simpilify PyCore_* macros by assuming the function prototypes for
malloc() and free() don't change.
2002-03-18 18:13:41 +00:00
Martin v. Löwis f6eebbb435 Patch #530105: Allow file object may to be subtyped 2002-03-15 17:42:16 +00:00
Tim Peters dc5a508761 SF bug 525705: [2.2] underflow raise OverflowException.
Another year in the quest to out-guess random C behavior.

Added macros Py_ADJUST_ERANGE1(X) and Py_ADJUST_ERANGE2(X, Y).  The latter
is useful for functions with complex results.  Two corrections to errno-
after-libm-call are attempted:

1. If the platform set errno to ERANGE due to underflow, clear errno.
   Some unknown subset of libm versions and link options do this.  It's
   allowed by C89, but I never figured anyone would do it.

2. If the platform did not set errno but overflow occurred, force
   errno to ERANGE.  C89 required setting errno to ERANGE, but C99
   doesn't.  Some unknown subset of libm versions and link options do
   it the C99 way now.

Bugfix candidate, but hold off until some Linux people actually try it,
with and without -lieee.  I'll send a help plea to Python-Dev.
2002-03-09 04:58:24 +00:00