Commit Graph

1424 Commits

Author SHA1 Message Date
Benjamin Peterson e0d4c7b5bd expose PySTEntry.nested so the symtable module will work 2008-08-17 01:09:17 +00:00
Martin v. Löwis f91d46a17d Issue #3139: Make buffer-interface thread-safe wrt. PyArg_ParseTuple,
by denying s# to parse objects that have a releasebuffer procedure,
and introducing s*.

More module might need to get converted to use s*.
2008-08-12 14:49:50 +00:00
Gregory P. Smith 0470bab697 Issue #2620: Overflow checking when allocating or reallocating memory
was not always being done properly in some python types and extension
modules.  PyMem_MALLOC, PyMem_REALLOC, PyMem_NEW and PyMem_RESIZE have
all been updated to perform better checks and places in the code that
would previously leak memory on the error path when such an allocation
failed have been fixed.
2008-07-22 04:46:32 +00:00
Barry Warsaw ecb8c7991d Post release cleanup 2008-07-18 03:36:18 +00:00
Barry Warsaw daddf03f77 Bumping to 2.6b2 2008-07-18 03:20:07 +00:00
Nick Coghlan 53663a695e Issue 2235: __hash__ is once again inherited by default, but inheritance can be blocked explicitly so that collections.Hashable remains meaningful 2008-07-15 14:27:37 +00:00
Alexandre Vassalotti 8d412f36b5 Issue #3274: Use a less common identifier for the temporary variable
in Py_CLEAR().
2008-07-13 20:42:44 +00:00
Amaury Forgeot d'Arc 2252d11c08 #3342: In tracebacks, printed source lines were not indented since r62555.
#3343: Py_DisplaySourceLine should be a private function. Rename it to _Py_DisplaySourceLine.
2008-07-11 21:45:06 +00:00
Gregory P. Smith 2fe77060eb - Issue #2862: Make int and float freelist management consistent with other
freelists.  Changes their CompactFreeList apis into ClearFreeList apis and
  calls them via gc.collect().
2008-07-06 03:35:58 +00:00
Raymond Hettinger 9c437af4eb Revert 64424, 64438, and 64439. 2008-06-24 22:46:07 +00:00
Eric Smith 65fe47b931 Modified interface to _Py_[String|Unicode]InsertThousandsGrouping, in anticipation of fixing issue 3140. 2008-06-24 00:42:10 +00:00
Raymond Hettinger e3ae655edf Make bin() implementation parallel oct() and hex() so that int/long subclasses can override or so that other classes can support. 2008-06-20 04:18:15 +00:00
Barry Warsaw 060792cdc3 Post release changes 2008-06-19 02:31:54 +00:00
Barry Warsaw b5d174037f Bumping to 2.6b1 2008-06-19 01:48:07 +00:00
Amaury Forgeot d'Arc a4dd2e20e2 Restore support for Microsoft VC6 compiler.
Some functions in the msvcrt module are skipped,
and socket.ioctl is enabled only when using a more recent Platform SDK.

(and yes, there are still companies that use a 10-years old compiler)
2008-06-13 00:42:22 +00:00
Benjamin Peterson 114f7e5fff #1683 prevent forking from interfering in threading storage
This should prevent some test_multiprocessing failures
2008-06-13 00:09:47 +00:00
Gregory P. Smith fe22a456d5 Correct an incorrect comment about our #include of stddef.h.
(see Doug Evans' comment on python-dev 2008-06-10)
2008-06-11 18:00:52 +00:00
Gregory P. Smith 9d53457e59 Merge in release25-maint r60793:
Added checks for integer overflows, contributed by Google. Some are
 only available if asserts are left in the code, in cases where they
 can't be triggered from Python code.
2008-06-11 07:41:16 +00:00
Gregory P. Smith e0b9261a2f swap stringobject.h and bytesobject.h contents to make sense. PyString in
stringobject and PyBytes defines in bytesobject.
2008-06-11 03:40:10 +00:00
Gregory P. Smith dd96db63f6 This reverts r63675 based on the discussion in this thread:
http://mail.python.org/pipermail/python-dev/2008-June/079988.html

Python 2.6 should stick with PyString_* in its codebase.  The PyBytes_* names
in the spirit of 3.0 are available via a #define only.  See the email thread.
2008-06-09 04:58:54 +00:00
Travis E. Oliphant 0144f27602 Remove locking part of new buffer protocol. 2008-06-06 22:39:47 +00:00
Thomas Heller 259a566ac5 Fix preprocessor statement. 2008-06-05 17:29:38 +00:00
Ronald Oussoren 5640ce2f1e MacOS X: Enable 4-way universal builds
This patch adds a new configure argument on OSX:
        --with-universal-archs=[32-bit|64-bit|all]

When used with the --enable-universalsdk option this controls which
CPU architectures are includes in the framework. The default is 32-bit,
meaning i386 and ppc. The most useful alternative is 'all', which includes
all 4 CPU architectures supported by MacOS X (i386, ppc, x86_64 and ppc64).

This includes limited support for the Carbon bindings in 64-bit mode as well,
limited because (a) I haven't done extensive testing and (b) a large portion
of the Carbon API's aren't available in 64-bit mode anyway.

I've also duplicated a feature of Apple's build of python: setting the
environment variable 'ARCHFLAGS' controls the '-arch' flags used for building
extensions using distutils.
2008-06-05 12:58:24 +00:00
Gregory P. Smith 1bd52d745b Make the _H #define's match the header file names. Fix comments to
mention the correct type names.
2008-06-01 22:57:47 +00:00
Martin v. Löwis 99815892f6 New environment variable PYTHONIOENCODING. 2008-06-01 07:20:46 +00:00
Eric Smith dc13b79a38 Refactor and clean up str.format() code (and helpers) in advance of optimizations. 2008-05-30 18:10:04 +00:00
Georg Brandl 74a1deaab3 #2989: add PyType_Modified(). 2008-05-28 11:21:39 +00:00
Benjamin Peterson b17ad2de08 wrap line 2008-05-26 19:37:11 +00:00
Benjamin Peterson dacde0d6ae turn PyErr_WarnPy3k into a macro 2008-05-26 17:43:53 +00:00
Christian Heimes 593daf545b Renamed PyString to PyBytes 2008-05-26 12:51:38 +00:00
Christian Heimes 3497f94476 First step of the C API rename:
renamed Include/bytesobject.h to Include/bytearrayobject.h
renamed Include/stringobject.h to Include/bytesobject.h
added Include/stringobject.h with aliases
2008-05-26 12:29:14 +00:00
Martin v. Löwis 8c255e4173 Patch #1722225: Support QNX 6. 2008-05-23 15:06:50 +00:00
Eric Smith cf537ff39e Addresses issue 2802: 'n' formatting for integers.
Adds 'n' as a format specifier for integers, to mirror the same
specifier which is already available for floats.  'n' is the same as
'd', but inserts the current locale-specific thousands grouping.

I added this as a stringlib function, but it's only used by str type,
not unicode.  This is because of an implementation detail in
unicode.format(), which does its own str->unicode conversion.  But the
unicode version will be needed in 3.0, and it may be needed by other
code eventually in 2.6 (maybe decimal?), so I left it as a stringlib
implementation.  As long as the unicode version isn't instantiated,
there's no overhead for this.
2008-05-11 19:52:48 +00:00
Barry Warsaw bf5bd9f2f0 Post tag updates. 2008-05-08 15:30:00 +00:00
Barry Warsaw 6cc7940e10 Bump to 2.6a3 2008-05-08 13:16:19 +00:00
Christian Heimes af748c3ab8 Implemented PEP 370 2008-05-06 22:41:46 +00:00
Benjamin Peterson a692c4df63 Added PyErr_WarnPy3k function. (issue 2671) I will be converting current Py3k warnings to the use of this function soon. 2008-04-27 02:28:02 +00:00
Martin v. Löwis 19dfa3e71a Remove Py_Refcnt, Py_Type, Py_Size, as they were added only
for backwards compatibility, yet 2.5 did not have them at all.
2008-04-24 13:16:36 +00:00
Christian Heimes c873550737 Stupid me. Py_RETURN_NAN should actually return something ... 2008-04-18 23:49:11 +00:00
Christian Heimes 6f34109384 I finally got the time to update and merge Mark's and my trunk-math branch. The patch is collaborated work of Mark Dickinson and me. It was mostly done a few months ago. The patch fixes a lot of loose ends and edge cases related to operations with NaN, INF, very small values and complex math.
The patch also adds acosh, asinh, atanh, log1p and copysign to all platforms. Finally it fixes differences between platforms like different results or exceptions for edge cases. Have fun :)
2008-04-18 23:13:07 +00:00
Benjamin Peterson 820b51c170 #2627 Let it be known what pgen generates 2008-04-13 20:35:56 +00:00
Christian Heimes 0a4f8956e6 Fix compiler warning Include/warnings.h:19:28: warning: no newline at end of file 2008-04-13 09:30:17 +00:00
Brett Cannon e974689038 Re-implement the 'warnings' module in C. This allows for usage of the
'warnings' code in places where it was previously not possible (e.g., the
parser). It could also potentially lead to a speed-up in interpreter start-up
if the C version of the code (_warnings) is imported over the use of the
Python version in key places.

Closes issue #1631171.
2008-04-12 23:44:07 +00:00
Gregory P. Smith aa63d0d4af Make file objects as thread safe as the underlying libc FILE* implementation.
close() will now raise an IOError if any operations on the file object
are currently in progress in other threads.

Most code was written by Antoine Pitrou (pitrou).  Additional testing,
documentation and test suite cleanup done by me (gregory.p.smith).

Fixes issue 815646 and 595601 (as well as many other bugs and
references to this problem dating back to the dawn of Python).
2008-04-06 23:11:17 +00:00
Barry Warsaw 01d71f9766 Post tag version tweak 2008-04-03 04:14:19 +00:00
Barry Warsaw 9649cdd5d4 Updating for 2.6a2 2008-04-03 04:10:02 +00:00
Georg Brandl a48f3ab895 Patch #2511: Give the "excepthandler" AST item proper attributes by making it a Sum. 2008-03-30 06:40:17 +00:00
Georg Brandl f2bfd54d6f Properly check for consistency with the third argument of
compile() when compiling an AST node.
2008-03-29 13:24:23 +00:00
Benjamin Peterson a45ab9f37d NIL => NULL 2008-03-28 23:11:01 +00:00
Georg Brandl fc8eef3c78 Patch #1810 by Thomas Lee, reviewed by myself:
allow compiling Python AST objects into code objects
in compile().
2008-03-28 12:11:56 +00:00
Neal Norwitz d183bdd6fb Revert r61969 which added casts to Py_CHARMASK to avoid compiler warnings.
Rather than sprinkle casts throughout the code, change Py_CHARMASK to
always cast it's result to an unsigned char.  This should ensure we
do the right thing when accessing an array with the result.
2008-03-28 04:58:51 +00:00
Neal Norwitz 231346e23f Fix warnings about using char as an array subscript. This is not portable
since char is signed on some platforms and unsigned on others.
2008-03-27 04:40:50 +00:00
Christian Heimes 3c60833e1e Patch #2477: Added from __future__ import unicode_literals
The new PyParser_*Ex() functions are based on Neal's suggestion and initial patch. The new __future__ feature makes all '' and r'' unicode strings. b'' and br'' stay (byte) strings.
2008-03-26 22:01:37 +00:00
Christian Heimes 1a6387e683 Merged revisions 61750,61752,61754,61756,61760,61763,61768,61772,61775,61805,61809,61812,61819,61917,61920,61930,61933-61934 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/trunk-bytearray

........
  r61750 | christian.heimes | 2008-03-22 20:47:44 +0100 (Sat, 22 Mar 2008) | 1 line

  Copied files from py3k w/o modifications
........
  r61752 | christian.heimes | 2008-03-22 20:53:20 +0100 (Sat, 22 Mar 2008) | 7 lines

  Take One
  * Added initialization code, warnings, flags etc. to the appropriate places
  * Added new buffer interface to string type
  * Modified tests
  * Modified Makefile.pre.in to compile the new files
  * Added bytesobject.c to Python.h
........
  r61754 | christian.heimes | 2008-03-22 21:22:19 +0100 (Sat, 22 Mar 2008) | 2 lines

  Disabled bytearray.extend for now since it causes an infinite recursion
  Fixed serveral unit tests
........
  r61756 | christian.heimes | 2008-03-22 21:43:38 +0100 (Sat, 22 Mar 2008) | 5 lines

  Added PyBytes support to several places:
  str + bytearray
  ord(bytearray)
  bytearray(str, encoding)
........
  r61760 | christian.heimes | 2008-03-22 21:56:32 +0100 (Sat, 22 Mar 2008) | 1 line

  Fixed more unit tests related to type('') is not unicode
........
  r61763 | christian.heimes | 2008-03-22 22:20:28 +0100 (Sat, 22 Mar 2008) | 2 lines

  Fixed more unit tests
  Fixed bytearray.extend
........
  r61768 | christian.heimes | 2008-03-22 22:40:50 +0100 (Sat, 22 Mar 2008) | 1 line

  Implemented old buffer interface for bytearray
........
  r61772 | christian.heimes | 2008-03-22 23:24:52 +0100 (Sat, 22 Mar 2008) | 1 line

  Added backport of the io module
........
  r61775 | christian.heimes | 2008-03-23 03:50:49 +0100 (Sun, 23 Mar 2008) | 1 line

  Fix str assignement to bytearray. Assignment of a str of size 1 is interpreted as a single byte
........
  r61805 | christian.heimes | 2008-03-23 19:33:48 +0100 (Sun, 23 Mar 2008) | 3 lines

  Fixed more tests
  Fixed bytearray() comparsion with unicode()
  Fixed iterator assignment of bytearray
........
  r61809 | christian.heimes | 2008-03-23 21:02:21 +0100 (Sun, 23 Mar 2008) | 2 lines

  str(bytesarray()) now returns the bytes and not the representation of the bytearray object
  Enabled and fixed more unit tests
........
  r61812 | christian.heimes | 2008-03-23 21:53:08 +0100 (Sun, 23 Mar 2008) | 3 lines

  Clear error PyNumber_AsSsize_t() fails
  Use CHARMASK for ob_svall access
  disabled a test with memoryview again
........
  r61819 | christian.heimes | 2008-03-23 23:05:57 +0100 (Sun, 23 Mar 2008) | 1 line

  Untested updates to the PCBuild directory
........
  r61917 | christian.heimes | 2008-03-26 00:57:06 +0100 (Wed, 26 Mar 2008) | 1 line

  The type system of Python 2.6 has subtle differences to 3.0's. I've removed the Py_TPFLAGS_BASETYPE flags from bytearray for now. bytearray can't be subclasses until the issues with bytearray subclasses are fixed.
........
  r61920 | christian.heimes | 2008-03-26 01:44:08 +0100 (Wed, 26 Mar 2008) | 2 lines

  Disabled last failing test
  I don't understand what the test is testing and how it suppose to work. Ka-Ping, please check it out.
........
  r61930 | christian.heimes | 2008-03-26 12:46:18 +0100 (Wed, 26 Mar 2008) | 1 line

  Re-enabled bytes warning code
........
  r61933 | christian.heimes | 2008-03-26 13:20:46 +0100 (Wed, 26 Mar 2008) | 1 line

  Fixed a bug in the new buffer protocol. The buffer slots weren't copied into a subclass.
........
  r61934 | christian.heimes | 2008-03-26 13:25:09 +0100 (Wed, 26 Mar 2008) | 1 line

  Re-enabled bytearray subclassing - all tests are passing.
........
2008-03-26 12:49:49 +00:00
Eric Smith 7c47894a2a Backport of the print function, using a __future__ import.
This work is substantially Anthony Baxter's, from issue
1633807.  I just freshened it, made a few minor tweaks,
and added the test cases.  I also created issue 2412,
which is to check for 2to3's behavior with the print
function.  I also added myself to ACKS.
2008-03-18 23:45:49 +00:00
Travis E. Oliphant 3781aef8f8 Finish backporting new buffer API to Python 2.6. Left to do: memoryview object and structmodule. But, these need to be finished in Python 3.0 first. No objects support the new buffer API in Python 2.6 as of yet, and except for the memoryview object, I don't think they will. 2008-03-18 04:44:57 +00:00
Travis E. Oliphant 33451d8ab1 Add necessary headers to back-port new buffer protocol to Python 2.6 2008-03-17 17:36:12 +00:00
Barry Warsaw 65475fdba7 Set things up for 2.6a2. 2008-03-01 17:11:41 +00:00
Barry Warsaw 5297361198 Bump to version 2.6a1 2008-03-01 02:23:38 +00:00
Jeffrey Yasskin 960b9b7a2f Move abc._Abstract into object by adding a new flag Py_TPFLAGS_IS_ABSTRACT,
which forbids constructing types that have it set. The effect is to speed

  ./python.exe -m timeit -s 'import abc' -s 'class Foo(object): __metaclass__ = abc.ABCMeta' 'Foo()'

up from 2.5us to 0.201us. This fixes issue 1762.
2008-02-28 04:45:36 +00:00
Christian Heimes a3c8c10201 Thomas Herve explained to me that PyCrypto depends on the constants. I'm adding the aliases because C code for Python 2.x should compile under 2.6 as well. The aliases aren't available in Python 3.x though. 2008-02-25 17:32:07 +00:00
Christian Heimes 5224d28d38 Patch #1759: Backport of PEP 3129 class decorators
with some help from Georg
2008-02-23 15:01:05 +00:00
Eric Smith a9f7d62480 Backport of PEP 3101, Advanced String Formatting, from py3k.
Highlights:
 - Adding PyObject_Format.
 - Adding string.Format class.
 - Adding __format__ for str, unicode, int, long, float, datetime.
 - Adding builtin format.
 - Adding ''.format and u''.format.
 - str/unicode fixups for formatters.

The files in Objects/stringlib that implement PEP 3101 (stringdefs.h,
unicodedefs.h, formatter.h, string_format.h) are identical in trunk
and py3k.  Any changes from here on should be made to trunk, and
changes will propogate to py3k).
2008-02-17 19:46:49 +00:00
Christian Heimes 3b718a79af Implemented Martin's suggestion to clear the free lists during the garbage collection of the highest generation. 2008-02-14 12:47:33 +00:00
Eric Smith dd47aaebe8 Forgot to modify header file in r60707. 2008-02-10 15:07:44 +00:00
Eric Smith 5e527ebee1 Added PyNumber_ToBase and supporting routines _PyInt_Format and
_PyLong_Format.  In longobject.c, changed long_format to
_PyLong_Format.  In intobject.c, changed uses of PyOS_snprintf to
_PyInt_Format instead.

_PyLong_Format is similar to py3k's routine of the same name, except
it has 2 additional parameters: addL and newstyle.  addL was existing
in long_format, and controls adding the trailing "L".  This is
unneeded in py3k.  newstyle is used to control whether octal prepends
"0" (the pre-2.6 style), or "0o" (the 3.0 sytle).

PyNumber_ToBase is needed for PEP 3127 (Integer Literal Support and
Syntax) and PEP 3101 (Advanced String Formatting).

This changeset does not need merging into py3k.
2008-02-10 01:36:53 +00:00
Christian Heimes f75dbef208 Deallocate content of the dict free list on interpreter shutdown 2008-02-08 00:11:31 +00:00
Christian Heimes 422051a367 Patch #1953
I implemented the function sys._compact_freelists() and C API functions PyInt_/PyFloat_CompactFreeList() to compact the pre-allocated blocks of ints and floats. They allow the user to reduce the memory usage of a Python process that deals with lots of numbers.
The patch also renames sys._cleartypecache to sys._clear_type_cache
2008-02-04 18:00:12 +00:00
Jeffrey Yasskin a26cf9b760 Make int() and long() fall back to __trunc__(). See issue 2002. 2008-02-04 01:04:35 +00:00
Amaury Forgeot d'Arc 58e185a33b Nasty typo in setobject.h 2008-02-03 23:14:32 +00:00
Amaury Forgeot d'Arc cab3d98ca1 Ensure that PySet_Add() operates on a newly created frozenset, like PyTuple_SetItem does.
Add PyFrozenSet_Check(), which was not needed before; The list of Py*Set_Check* macros seems to be complete now.

Add missing NEWS entries about all this.
2008-02-03 22:51:43 +00:00
Christian Heimes 951cc0f474 Fixed bug #1983: Return from fork() is pid_t, not int 2008-01-31 23:08:23 +00:00
Christian Heimes 4d4f270941 Patch #1970 by Antoine Pitrou: Speedup unicode whitespace and linebreak detection. The speedup is about 25% for split() (571 / 457 usec) and 35% (175 / 127 usec )for splitlines() 2008-01-30 11:32:37 +00:00
Raymond Hettinger 7759a0cd76 Factor-out common code with a new macro 2008-01-28 21:47:42 +00:00
Christian Heimes 908caac52e Added clear cache methods to clear the internal type lookup cache for ref leak test runs. 2008-01-27 23:34:59 +00:00
Neal Norwitz cfb41c4985 Add stdarg include for va_list to get this to compile on cygwin 2008-01-27 07:41:33 +00:00
Georg Brandl 0cdf9a36ec #1473257: add generator.gi_code attribute that refers to
the original code object backing the generator. Patch by Collin Winter.
2008-01-26 14:14:20 +00:00
Christian Heimes 7f39c9fcbb Backport of several functions from Python 3.0 to 2.6 including PyUnicode_FromString, PyUnicode_Format and PyLong_From/AsSsize_t. The functions are partly required for the backport of the bytearray type and _fileio module. They should also make it easier to port C to 3.0.
First chapter of the Python 3.0 io framework back port: _fileio
The next step depends on a working bytearray type which itself depends on a backport of the nwe buffer API.
2008-01-25 12:18:43 +00:00
Christian Heimes 74b8e76ec1 Don't repeat yourself
Added the macros PyModule_AddIntMacro and PyModule_AddStringMacro. They shorten PyModule_AddIntConstant(m, "AF_INET", AF_INET) to PyModule_AddIntMacro(m, AF_INET)
2008-01-22 15:25:18 +00:00
Christian Heimes 690c91220e Fixed a missing (X) in define 2008-01-22 15:01:25 +00:00
Georg Brandl 32a3fb5ec9 Patch #1720595: add T_BOOL to the range of structmember types.
Patch by Angelo Mottola, reviewed by MvL, tests by me.
2008-01-21 21:23:15 +00:00
Christian Heimes 487235109b Fixed a wrong assumption in configure.in and Include/pyport.h. The is finite function is not called isfinite() but finite(). Sorry, my fault. :) 2008-01-20 14:28:28 +00:00
Amaury Forgeot d'Arc e4c270c2a8 Re-apply patch #1700288 (first applied in r59931, rolled back in r59940)
now that ctypes uses a more supported method to create types:

Method cache optimization, by Armin Rigo, ported to 2.6 by Kevin Jacobs.
2008-01-14 00:29:41 +00:00
Georg Brandl d1c131a6e3 Back out r59931 - test_ctypes fails with it. 2008-01-13 15:04:05 +00:00
Georg Brandl 27e26ec418 Patch #1700288: Method cache optimization, by Armin Rigo, ported to
2.6 by Kevin Jacobs.
2008-01-12 13:47:57 +00:00
Georg Brandl 2da0fceba7 Patch #602345 by Neal Norwitz and me: add -B option and PYTHONDONTWRITEBYTECODE envvar to skip writing bytecode. 2008-01-07 17:09:35 +00:00
Christian Heimes 000a074c95 Modified PyImport_Import and PyImport_ImportModule to always use absolute imports by calling __import__ with an explicit level of 0
Added a new API function PyImport_ImportModuleNoBlock. It solves the problem with dead locks when mixing threads and imports
2008-01-03 22:16:32 +00:00
Christian Heimes 0a83d79268 Some build bots don't compile mathmodule. There is an issue with the long definition of pi and euler 2008-01-03 21:14:48 +00:00
Guido van Rossum 02de8979cc Patch #1583 by Adam Olsen.
This adds signal.set_wakeup_fd(fd) which sets a file descriptor to
which a zero byte will be written whenever a C exception handler runs.

I added a simple C API as well, PySignal_SetWakeupFd(fd).
2007-12-19 19:41:06 +00:00
Christian Heimes e93237dfcc #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, Py_TYPE and Py_REFCNT. Macros for b/w compatibility are available. 2007-12-19 02:37:44 +00:00
Christian Heimes 0a8143f646 Applied patch #1635: Float patch for inf and nan on Windows (and other platforms).
The patch unifies float("inf") and repr(float("inf")) on all platforms.
2007-12-18 23:22:54 +00:00
Raymond Hettinger fd7ed407d7 Give meaning to the oparg for BUILD_MAP: estimated size of the dictionary.
Allows dictionaries to be pre-sized (upto 255 elements) saving time lost
to re-sizes with their attendant mallocs and re-insertions.

Has zero effect on small dictionaries (5 elements or fewer), a slight
benefit for dicts upto 22 elements (because they had to resize once
anyway), and more benefit for dicts upto 255 elements (saving multiple
resizes during the build-up and reducing the number of collisions on
the first insertions).  Beyond 255 elements, there is no addional benefit.
2007-12-18 21:24:09 +00:00
Raymond Hettinger effde12f5f Speed-up dictionary constructor by about 10%.
New opcode, STORE_MAP saves the compiler from awkward stack manipulations
and specializes for dicts using PyDict_SetItem instead of PyObject_SetItem.

Old disassembly:
              0 BUILD_MAP                0
              3 DUP_TOP
              4 LOAD_CONST               1 (1)
              7 ROT_TWO
              8 LOAD_CONST               2 ('x')
             11 STORE_SUBSCR
             12 DUP_TOP
             13 LOAD_CONST               3 (2)
             16 ROT_TWO
             17 LOAD_CONST               4 ('y')
             20 STORE_SUBSCR

New disassembly:
              0 BUILD_MAP                0
              3 LOAD_CONST               1 (1)
              6 LOAD_CONST               2 ('x')
              9 STORE_MAP
             10 LOAD_CONST               3 (2)
             13 LOAD_CONST               4 ('y')
             16 STORE_MAP
2007-12-18 18:26:18 +00:00
Christian Heimes 284d927625 Backport of r59456:59458 from py3k to trunk
Issue #1580: New free format floating point representation based on "Floating-Point Printer Sample Code", by Robert G. Burger. For example repr(11./5) now returns '2.2' instead of '2.2000000000000002'.

Thanks to noam for the patch! I had to modify doubledigits.c slightly to support X64 and IA64 machines on Windows. I also added the new file to the three project files.
2007-12-10 22:28:56 +00:00
Raymond Hettinger 4e2f714031 Fix Issue 1045.
Factor-out common calling code by simplifying the length_hint API.
Speed-up the function by caching the PyObject_String for the attribute lookup.
2007-12-06 00:56:53 +00:00
Christian Heimes dfdfaab1c5 Feature #1534
Added PyFloat_GetMax(), PyFloat_GetMin() and PyFloat_GetInfo() to the float API.
Added a dictionary sys.float_info with information about the internal floating point type to the sys module.
2007-12-01 11:20:10 +00:00
Christian Heimes e8954f8ce7 Backport of the PCbuild9 directory from the py3k branch.
I've finished the last task for the PCbuild9 directory today. I don't think there is much left to do. Now you can all play around with the shiny new VS 2008 and try the PGO builds. I was able to get a speed improvement of about 10% on py3k.
Have fun! :)
2007-11-22 11:21:16 +00:00
Amaury Forgeot d'Arc 5087980c1e The incremental decoder for utf-7 must preserve its state between calls.
Solves issue1460.

Might not be a backport candidate: a new API function was added,
and some code may rely on details in utf-7.py.
2007-11-20 23:31:27 +00:00
Nick Coghlan 327a39b047 Patch #1739468: Directories and zipfiles containing __main__.py are now executable 2007-11-18 11:56:28 +00:00
Brett Cannon 1e534b5425 Fix a crasher where Python code managed to infinitely recurse in C code without
ever going back out to Python code in PyObject_Call().  Required introducing a
static RuntimeError instance so that normalizing an exception there is no
reliance on a recursive call that would put the exception system over the
recursion check itself.
2007-09-07 04:18:30 +00:00