Commit Graph

2848 Commits

Author SHA1 Message Date
Benjamin Peterson
4fa88fa0ba merge the io-c branch: C implementation of the io module
The main io module now uses the C implementation.  The Python one still exists
in Lib/_pyio.py for ease of testing new features and usefulness to other
implementers.

The rewrite was done by Antoine Pitrou and Amaury Forgeot d'Arc.  I was slightly
helpful at the end. :)


Following are the log messages from the io-c branch:

Merged revisions 68683-68685,68687-68689,68693,68704,68741-68743,68745,68747,68752-68754,68756,68758,68812,68816-68817,68820-68822,68824-68825,68828,68876-68877,69037,69044,69104,69115,69194,69626-69629,69636,69638,69641-69642,69644-69654,69656-69661,69671,69677,69812-69815,69817,69827-69830,69839,69841-69845,69848,69850,69852,69854,69860,69865-69866,69868,69872-69873,69885,69888,69891-69893,69911,69913-69916,69963,70033,70035,70038,70041-70048,70067-70070,70075,70112,70133,70135,70140 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/io-c

........
  r68683 | antoine.pitrou | 2009-01-17 17:13:48 -0600 (Sat, 17 Jan 2009) | 3 lines

  Merge in changes from the io-c sandbox. Tests will follow in separate commits.
........
  r68684 | antoine.pitrou | 2009-01-17 17:17:26 -0600 (Sat, 17 Jan 2009) | 3 lines

  Fixes and additions to test_io.py
........
  r68685 | antoine.pitrou | 2009-01-17 17:22:04 -0600 (Sat, 17 Jan 2009) | 1 line

  Fix test_fileio
........
  r68687 | antoine.pitrou | 2009-01-17 17:35:11 -0600 (Sat, 17 Jan 2009) | 3 lines

  Add dependency to _iomodule.h for the various C sources
........
  r68688 | antoine.pitrou | 2009-01-17 17:38:18 -0600 (Sat, 17 Jan 2009) | 3 lines

  These precautions are not needed anymore!
........
  r68689 | antoine.pitrou | 2009-01-17 17:41:48 -0600 (Sat, 17 Jan 2009) | 3 lines

  Fix another test
........
  r68693 | antoine.pitrou | 2009-01-17 17:49:58 -0600 (Sat, 17 Jan 2009) | 3 lines

  Fix test_uu (which was using private attributes of TextIOWrapper)
........
  r68704 | antoine.pitrou | 2009-01-17 18:45:29 -0600 (Sat, 17 Jan 2009) | 3 lines

  Most io sources are Py_ssize_t-clean (I don't know about bytesio and stringio)
........
  r68741 | antoine.pitrou | 2009-01-18 15:20:30 -0600 (Sun, 18 Jan 2009) | 3 lines

  Check return type in TextIOWrapper.__next__
........
  r68742 | antoine.pitrou | 2009-01-18 15:28:48 -0600 (Sun, 18 Jan 2009) | 4 lines

  Make binary buffered readline and iteration much faster
  (8x as fast as the IOBase generic implementation)
........
  r68743 | antoine.pitrou | 2009-01-18 15:47:47 -0600 (Sun, 18 Jan 2009) | 3 lines

  Reinsert test_io_after_close (was removed by mistake)
........
  r68745 | antoine.pitrou | 2009-01-18 16:16:06 -0600 (Sun, 18 Jan 2009) | 3 lines

  Add read, read1 and write methods to BufferedIOBase
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  r68747 | antoine.pitrou | 2009-01-18 16:35:58 -0600 (Sun, 18 Jan 2009) | 3 lines

  Kill test failure
........
  r68752 | amaury.forgeotdarc | 2009-01-18 17:05:43 -0600 (Sun, 18 Jan 2009) | 3 lines

  Fix a segfault when e.g a BufferedReader is created with a FileIO in
  read mode.
........
  r68753 | antoine.pitrou | 2009-01-18 17:13:09 -0600 (Sun, 18 Jan 2009) | 3 lines

  Add truncate() to text IO objects
........
  r68754 | antoine.pitrou | 2009-01-18 17:51:08 -0600 (Sun, 18 Jan 2009) | 3 lines

  Remove IOBase.__del__ and replace it with custom code with tp_dealloc
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  r68756 | antoine.pitrou | 2009-01-18 18:10:16 -0600 (Sun, 18 Jan 2009) | 3 lines

  Remove irrelevant comment.
........
  r68758 | antoine.pitrou | 2009-01-18 18:36:16 -0600 (Sun, 18 Jan 2009) | 3 lines

  in importlib:_fileio._FileIO -> _io.FileIO
........
  r68812 | antoine.pitrou | 2009-01-20 14:15:51 -0600 (Tue, 20 Jan 2009) | 3 lines

  Add garbage collection support to FileIO objects
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  r68816 | antoine.pitrou | 2009-01-20 14:56:28 -0600 (Tue, 20 Jan 2009) | 3 lines

  Add GC support to Buffered and Text IO objects
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  r68817 | antoine.pitrou | 2009-01-20 15:19:45 -0600 (Tue, 20 Jan 2009) | 3 lines

  Add some file headers
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  r68820 | antoine.pitrou | 2009-01-20 15:29:59 -0600 (Tue, 20 Jan 2009) | 3 lines

  Add class TextIOBase
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  r68821 | antoine.pitrou | 2009-01-20 15:36:16 -0600 (Tue, 20 Jan 2009) | 3 lines

  Add properties to TextIOBase
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  r68822 | antoine.pitrou | 2009-01-20 15:41:19 -0600 (Tue, 20 Jan 2009) | 3 lines

  Disable the pure Python TextIOBase class, and inject C the implementation instead
........
  r68824 | antoine.pitrou | 2009-01-20 16:36:28 -0600 (Tue, 20 Jan 2009) | 3 lines

  Fix two leaks
........
  r68825 | antoine.pitrou | 2009-01-20 16:38:29 -0600 (Tue, 20 Jan 2009) | 3 lines

  FileIO.name is just a plain attribute, we can set it directly
........
  r68828 | antoine.pitrou | 2009-01-20 17:06:33 -0600 (Tue, 20 Jan 2009) | 3 lines

  Speed up closed checks on text IO objects. Good for a 25% speedup on small ops.
........
  r68876 | antoine.pitrou | 2009-01-23 17:01:25 -0600 (Fri, 23 Jan 2009) | 3 lines

  Two typos
........
  r68877 | antoine.pitrou | 2009-01-23 18:13:20 -0600 (Fri, 23 Jan 2009) | 3 lines

  Remove two unused functions
........
  r69037 | amaury.forgeotdarc | 2009-01-27 17:10:25 -0600 (Tue, 27 Jan 2009) | 2 lines

  Update the win32 project files
........
  r69044 | antoine.pitrou | 2009-01-27 18:51:07 -0600 (Tue, 27 Jan 2009) | 3 lines

  Improve heuristic in IncrementalNewlineDecoder + some micro-optimizations
........
  r69104 | antoine.pitrou | 2009-01-29 15:23:42 -0600 (Thu, 29 Jan 2009) | 3 lines

  Fix some crashers found by Victor
........
  r69115 | hirokazu.yamamoto | 2009-01-29 20:36:28 -0600 (Thu, 29 Jan 2009) | 1 line

  Updated VC6 project file.
........
  r69194 | antoine.pitrou | 2009-02-01 16:57:18 -0600 (Sun, 01 Feb 2009) | 3 lines

  Fix downcasting warnings in 32-bit mode with 64-bit offsets (Windows)
........
  r69626 | benjamin.peterson | 2009-02-14 17:33:34 -0600 (Sat, 14 Feb 2009) | 1 line

  only catch AttributeError and UnsupportedOperation
........
  r69627 | benjamin.peterson | 2009-02-14 21:35:28 -0600 (Sat, 14 Feb 2009) | 1 line

  give the IO module its own state and store the os and locale modules in it
........
  r69628 | benjamin.peterson | 2009-02-14 22:08:32 -0600 (Sat, 14 Feb 2009) | 1 line

  put interned strings in the module state structure
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  r69629 | benjamin.peterson | 2009-02-14 22:15:29 -0600 (Sat, 14 Feb 2009) | 1 line

  put UnsupportedOperation in the module state
........
  r69636 | benjamin.peterson | 2009-02-15 08:31:42 -0600 (Sun, 15 Feb 2009) | 1 line

  dealloc unsupported_operation
........
  r69638 | benjamin.peterson | 2009-02-15 09:24:45 -0600 (Sun, 15 Feb 2009) | 1 line

  actually test the C implementation
........
  r69641 | benjamin.peterson | 2009-02-15 10:12:37 -0600 (Sun, 15 Feb 2009) | 5 lines

  make interned strings globals again ;(

  putting them in the module state was asking for trouble when the module
  was dealloced before the classes in it were
........
  r69642 | benjamin.peterson | 2009-02-15 10:19:45 -0600 (Sun, 15 Feb 2009) | 1 line

  actually test the python implementations
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  r69644 | antoine.pitrou | 2009-02-15 11:59:30 -0600 (Sun, 15 Feb 2009) | 3 lines

  Fix memory leak in destructor when a Python class inherits from IOBase (or an IOBase-derived type)
........
  r69645 | antoine.pitrou | 2009-02-15 12:23:26 -0600 (Sun, 15 Feb 2009) | 3 lines

  Add a warning about the embarassing state of IOBase finalization
........
  r69646 | antoine.pitrou | 2009-02-15 13:14:42 -0600 (Sun, 15 Feb 2009) | 3 lines

  Fix opening of 8-bit filenames with FileIO
........
  r69647 | antoine.pitrou | 2009-02-15 13:20:22 -0600 (Sun, 15 Feb 2009) | 3 lines

  Fix leak in FileIO constructor
........
  r69648 | antoine.pitrou | 2009-02-15 13:58:16 -0600 (Sun, 15 Feb 2009) | 3 lines

  Fix some refleaks
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  r69649 | antoine.pitrou | 2009-02-15 14:05:13 -0600 (Sun, 15 Feb 2009) | 3 lines

  Fix a leak in IOBase.writelines
........
  r69650 | antoine.pitrou | 2009-02-15 14:11:56 -0600 (Sun, 15 Feb 2009) | 3 lines

  Fix memory leak in BufferedWriter.truncate
........
  r69651 | antoine.pitrou | 2009-02-15 14:25:34 -0600 (Sun, 15 Feb 2009) | 3 lines

  Fix a leak in TextIOWrapper.seek
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  r69652 | antoine.pitrou | 2009-02-15 14:26:28 -0600 (Sun, 15 Feb 2009) | 3 lines

  Unify implementations of truncate for buffered objects
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  r69653 | antoine.pitrou | 2009-02-15 15:15:15 -0600 (Sun, 15 Feb 2009) | 3 lines

  Fix more leaks in TextIOWrapper
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  r69654 | antoine.pitrou | 2009-02-15 15:21:57 -0600 (Sun, 15 Feb 2009) | 3 lines

  Smaller chunk size for a faster test
........
  r69656 | benjamin.peterson | 2009-02-15 17:29:48 -0600 (Sun, 15 Feb 2009) | 1 line

  braces make this much clearer
........
  r69657 | benjamin.peterson | 2009-02-15 17:46:07 -0600 (Sun, 15 Feb 2009) | 1 line

  use the correct macro
........
  r69658 | antoine.pitrou | 2009-02-15 19:38:59 -0600 (Sun, 15 Feb 2009) | 5 lines

  Fix crash in test_urllib2_localnet in debug mode. It was due to an HTTPResponse
  object being revived when calling its close() method in IOBase's tp_dealloc.
  _PyIOBase_finalize() starts looking scary...
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  r69659 | benjamin.peterson | 2009-02-15 20:55:48 -0600 (Sun, 15 Feb 2009) | 1 line

  fix segfault on initialization failing
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  r69660 | benjamin.peterson | 2009-02-15 21:09:31 -0600 (Sun, 15 Feb 2009) | 1 line

  apparently locale.getprefferedencoding() can raise a ImportError, too
........
  r69661 | benjamin.peterson | 2009-02-15 21:54:15 -0600 (Sun, 15 Feb 2009) | 1 line

  it's amazing this worked at all; I was using the wrong structs!
........
  r69671 | benjamin.peterson | 2009-02-16 08:38:27 -0600 (Mon, 16 Feb 2009) | 1 line

  add garbage collection support to bytesio
........
  r69677 | benjamin.peterson | 2009-02-16 10:31:03 -0600 (Mon, 16 Feb 2009) | 5 lines

  reduce ImportError catching code duplication

  I'm not sure this makes the code clearer with its new gotos, but
  at least I added a big fat comment
........
  r69812 | antoine.pitrou | 2009-02-20 13:50:16 -0600 (Fri, 20 Feb 2009) | 3 lines

  _StringIO now belongs to the _io modules, rather to its own _stringio module
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  r69813 | antoine.pitrou | 2009-02-20 13:58:22 -0600 (Fri, 20 Feb 2009) | 3 lines

  Add a test for StringIO properties
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  r69814 | antoine.pitrou | 2009-02-20 14:06:03 -0600 (Fri, 20 Feb 2009) | 3 lines

  Reimplement a few trivial StringIO functions and properties in C
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  r69815 | antoine.pitrou | 2009-02-20 14:13:11 -0600 (Fri, 20 Feb 2009) | 3 lines

  Add the line_buffering property to TextIOWrapper, and test for it
........
  r69817 | antoine.pitrou | 2009-02-20 14:45:50 -0600 (Fri, 20 Feb 2009) | 4 lines

  Allow IncrementalNewlineDecoder to take unicode objects as decoding input if the decoder parameter is None
  This will help rewriting StringIO to C
........
  r69827 | antoine.pitrou | 2009-02-20 19:00:30 -0600 (Fri, 20 Feb 2009) | 3 lines

  Rewrite most of StringIO in C. Some almost empty stubs remain to be converted.
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  r69828 | antoine.pitrou | 2009-02-20 19:09:25 -0600 (Fri, 20 Feb 2009) | 3 lines

  Plug a leak, and remove an unused string
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  r69829 | benjamin.peterson | 2009-02-20 20:02:28 -0600 (Fri, 20 Feb 2009) | 1 line

  this assertions makes more sense here
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  r69830 | benjamin.peterson | 2009-02-20 20:03:04 -0600 (Fri, 20 Feb 2009) | 1 line

  PyModule_AddObject can fail; simplify this code with a macro
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  r69839 | antoine.pitrou | 2009-02-21 12:54:01 -0600 (Sat, 21 Feb 2009) | 3 lines

  StringIO is now written entirely in C (and blazingly fast)
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  r69841 | benjamin.peterson | 2009-02-21 14:05:40 -0600 (Sat, 21 Feb 2009) | 1 line

  split the Python implementation of io into another module and rewrite the tests to test both implementations
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  r69842 | benjamin.peterson | 2009-02-21 14:10:00 -0600 (Sat, 21 Feb 2009) | 1 line

  closed is not a function
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  r69843 | benjamin.peterson | 2009-02-21 14:13:04 -0600 (Sat, 21 Feb 2009) | 1 line

  fix __all__ test
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  r69844 | benjamin.peterson | 2009-02-21 14:21:24 -0600 (Sat, 21 Feb 2009) | 1 line

  fix the rest of the Misc tests
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  r69845 | benjamin.peterson | 2009-02-21 14:26:59 -0600 (Sat, 21 Feb 2009) | 1 line

  RawIOBase is better for FileIO
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  r69848 | benjamin.peterson | 2009-02-21 15:33:53 -0600 (Sat, 21 Feb 2009) | 1 line

  fix some more tests broken by bag argument validation
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  r69850 | benjamin.peterson | 2009-02-21 16:16:42 -0600 (Sat, 21 Feb 2009) | 1 line

  make the python IncrementalNewineDecoder support a None decoder
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  r69852 | benjamin.peterson | 2009-02-21 16:36:09 -0600 (Sat, 21 Feb 2009) | 1 line

  fix a BlockingIOError.characters_written bug
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  r69854 | benjamin.peterson | 2009-02-21 16:49:02 -0600 (Sat, 21 Feb 2009) | 1 line

  check whence
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  r69860 | benjamin.peterson | 2009-02-21 17:42:50 -0600 (Sat, 21 Feb 2009) | 1 line

  fix some of these Misbehaving io tests
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  r69865 | benjamin.peterson | 2009-02-21 18:59:52 -0600 (Sat, 21 Feb 2009) | 1 line

  don't use super here()
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  r69866 | benjamin.peterson | 2009-02-21 19:05:28 -0600 (Sat, 21 Feb 2009) | 1 line

  use implementation specific classes
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  r69868 | benjamin.peterson | 2009-02-21 22:12:05 -0600 (Sat, 21 Feb 2009) | 1 line

  use a more DRY friendly approach to injecting module contents into test classes
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  r69872 | antoine.pitrou | 2009-02-22 13:39:45 -0600 (Sun, 22 Feb 2009) | 3 lines

  Sanitize destructor behaviour of IOBase. Now Python-defined attributes can be accessed from close().
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  r69873 | antoine.pitrou | 2009-02-22 13:50:14 -0600 (Sun, 22 Feb 2009) | 4 lines

  Only set the internal fd after it has been checked to be valid
  (otherwise, the destructor will attempt to close it)
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  r69885 | benjamin.peterson | 2009-02-22 15:30:14 -0600 (Sun, 22 Feb 2009) | 1 line

  convert some other tests to use both io implementations
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  r69888 | antoine.pitrou | 2009-02-22 17:03:16 -0600 (Sun, 22 Feb 2009) | 3 lines

  Silence all exceptions when finalizing
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  r69891 | benjamin.peterson | 2009-02-22 17:27:24 -0600 (Sun, 22 Feb 2009) | 1 line

  convert another test to test both io implementations
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  r69892 | benjamin.peterson | 2009-02-22 17:32:15 -0600 (Sun, 22 Feb 2009) | 1 line

  help poor people like me to find their io tests (did I miss any?)
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  r69893 | benjamin.peterson | 2009-02-22 17:37:56 -0600 (Sun, 22 Feb 2009) | 1 line

  put a big note in the test telling people to write tests for both implementations now
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  r69911 | antoine.pitrou | 2009-02-23 13:57:18 -0600 (Mon, 23 Feb 2009) | 3 lines

  expose DEFAULT_BUFFER_SIZE again (fixes a bunch of test failures)
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  r69913 | antoine.pitrou | 2009-02-23 14:10:30 -0600 (Mon, 23 Feb 2009) | 4 lines

  Do the cyclic garbage collection tests only on the C version.
  The Python version is helpless as it uses __del__.
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  r69914 | antoine.pitrou | 2009-02-23 14:21:41 -0600 (Mon, 23 Feb 2009) | 3 lines

  Adapt test_largefile to test both implementations
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  r69915 | antoine.pitrou | 2009-02-23 14:25:14 -0600 (Mon, 23 Feb 2009) | 3 lines

  One small failure
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  r69916 | antoine.pitrou | 2009-02-23 14:28:33 -0600 (Mon, 23 Feb 2009) | 3 lines

  Add a comment, at BP's request
........
  r69963 | antoine.pitrou | 2009-02-25 09:42:59 -0600 (Wed, 25 Feb 2009) | 3 lines

  Add a test of ABC inheritance
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  r70033 | antoine.pitrou | 2009-02-27 15:49:50 -0600 (Fri, 27 Feb 2009) | 3 lines

  The base classes now are ABCs.
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  r70035 | benjamin.peterson | 2009-02-27 15:57:41 -0600 (Fri, 27 Feb 2009) | 1 line

  good house keeping
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  r70038 | antoine.pitrou | 2009-02-27 17:05:23 -0600 (Fri, 27 Feb 2009) | 4 lines

  Make the buffer allocation overflow tests specific to the C implementation, since the Python implementation resizes its buffers when needed rather than allocating them up front.
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  r70041 | benjamin.peterson | 2009-02-27 18:26:12 -0600 (Fri, 27 Feb 2009) | 1 line

  kill java naming for sanity
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  r70042 | benjamin.peterson | 2009-02-27 18:28:53 -0600 (Fri, 27 Feb 2009) | 2 lines

  timingTest is superseded by iobench
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  r70043 | antoine.pitrou | 2009-02-27 19:13:50 -0600 (Fri, 27 Feb 2009) | 3 lines

  Remove the last traces of java naming in test_io
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  r70044 | antoine.pitrou | 2009-02-27 19:18:34 -0600 (Fri, 27 Feb 2009) | 3 lines

  Better resource cleanup
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  r70045 | antoine.pitrou | 2009-02-27 19:29:00 -0600 (Fri, 27 Feb 2009) | 3 lines

  Remove dubious uses of super(), and fix one test
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  r70046 | antoine.pitrou | 2009-02-27 19:31:00 -0600 (Fri, 27 Feb 2009) | 3 lines

  Bump up CHUNK_SIZE (no need to make the Python version look slower than it is)
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  r70047 | benjamin.peterson | 2009-02-27 20:03:26 -0600 (Fri, 27 Feb 2009) | 1 line

  fix typo
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  r70048 | benjamin.peterson | 2009-02-27 21:35:11 -0600 (Fri, 27 Feb 2009) | 1 line

  move code to a better place
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  r70067 | benjamin.peterson | 2009-02-28 10:43:20 -0600 (Sat, 28 Feb 2009) | 4 lines

  1. make sure to undo buffered read aheads in BufferedRandom.seek()
  2. refill the buffer if have <= 0
  3. fix the last failing test_io test!
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  r70068 | benjamin.peterson | 2009-02-28 10:57:50 -0600 (Sat, 28 Feb 2009) | 1 line

  define read1() on the python implementation's BufferedIOBase
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  r70069 | benjamin.peterson | 2009-02-28 11:01:17 -0600 (Sat, 28 Feb 2009) | 1 line

  document read1() in BufferedIOBase
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  r70070 | benjamin.peterson | 2009-02-28 11:06:42 -0600 (Sat, 28 Feb 2009) | 1 line

  give credit where credit is due
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  r70075 | antoine.pitrou | 2009-02-28 13:34:59 -0600 (Sat, 28 Feb 2009) | 3 lines

  Amaury's name
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  r70112 | antoine.pitrou | 2009-03-02 17:11:55 -0600 (Mon, 02 Mar 2009) | 4 lines

  Looks like this is necessary in order to build cleanly under Windows
  (someone correct this if it's wrong, I'm no Windows user)
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  r70133 | benjamin.peterson | 2009-03-03 15:23:32 -0600 (Tue, 03 Mar 2009) | 1 line

  fix test_newline_property on _pyio.StringIO
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  r70135 | benjamin.peterson | 2009-03-03 15:47:30 -0600 (Tue, 03 Mar 2009) | 1 line

  fix typos and inconsistencies. thanks to Daniel Diniz
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  r70140 | benjamin.peterson | 2009-03-03 16:21:10 -0600 (Tue, 03 Mar 2009) | 1 line

  add the test from #5266
........
2009-03-04 00:14:51 +00:00
Benjamin Peterson
dcaf329e40 instead of hacking __locals__ in during bytecode generation, put it in the symtable 2009-03-03 00:54:05 +00:00
Benjamin Peterson
f5b52246ed ignore the coding cookie in compile(), exec(), and eval() if the source is a string #4626 2009-03-02 23:31:26 +00:00
Jeffrey Yasskin
4dd40525e6 Fix 2 oversights from r69961. 2009-02-28 19:49:43 +00:00
Benjamin Peterson
efb06b0d91 Merged revisions 69811,69947 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r69811 | collin.winter | 2009-02-20 13:30:41 -0600 (Fri, 20 Feb 2009) | 2 lines

  Issue 5176: special-case string formatting in BINARY_MODULO implementation. This shows a modest (1-3%) speed-up in templating systems, for example.
........
  r69947 | jeffrey.yasskin | 2009-02-24 16:48:34 -0600 (Tue, 24 Feb 2009) | 3 lines

  Tools/scripts/analyze_dxp.py, a module with some helper functions to
  analyze the output of sys.getdxp().
........
2009-02-26 18:55:48 +00:00
Jeffrey Yasskin
9de7ec7868 http://bugs.python.org/issue4715
This patch by Antoine Pitrou optimizes the bytecode for conditional branches by
merging the following "POP_TOP" instruction into the conditional jump.  For
example, the list comprehension "[x for x in l if not x]" produced the
following bytecode:

  1           0 BUILD_LIST               0
              3 LOAD_FAST                0 (.0)
        >>    6 FOR_ITER                23 (to 32)
              9 STORE_FAST               1 (x)
             12 LOAD_FAST                1 (x)
             15 JUMP_IF_TRUE            10 (to 28)
             18 POP_TOP
             19 LOAD_FAST                1 (x)
             22 LIST_APPEND              2
             25 JUMP_ABSOLUTE            6
        >>   28 POP_TOP
             29 JUMP_ABSOLUTE            6
        >>   32 RETURN_VALUE

but after the patch it produces the following bytecode:

  1           0 BUILD_LIST               0
              3 LOAD_FAST                0 (.0)
        >>    6 FOR_ITER                18 (to 27)
              9 STORE_FAST               1 (x)
             12 LOAD_FAST                1 (x)
             15 POP_JUMP_IF_TRUE         6
             18 LOAD_FAST                1 (x)
             21 LIST_APPEND              2
             24 JUMP_ABSOLUTE            6
        >>   27 RETURN_VALUE

Notice that not only the code is shorter, but the conditional jump
(POP_JUMP_IF_TRUE) jumps right to the start of the loop instead of going through
the JUMP_ABSOLUTE at the end. "continue" statements are helped
similarly.

Furthermore, the old jump opcodes (JUMP_IF_FALSE, JUMP_IF_TRUE) have been
replaced by two new opcodes:
- JUMP_IF_TRUE_OR_POP, which jumps if true and pops otherwise
- JUMP_IF_FALSE_OR_POP, which jumps if false and pops otherwise
2009-02-25 02:25:04 +00:00
Mark Dickinson
87ec0855c6 Merged revisions 69459 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r69459 | mark.dickinson | 2009-02-09 14:18:43 +0000 (Mon, 09 Feb 2009) | 3 lines

  Issue #4575: fix Py_IS_INFINITY macro to work correctly on x87 FPUs.
  It now forces its argument to double before testing for infinity.
........
2009-02-09 17:15:59 +00:00
Benjamin Peterson
5c6d7877c5 Merged revisions 69129-69131,69139-69140,69143,69154-69159,69169,69288-69289,69293,69297-69301,69348 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r69129 | benjamin.peterson | 2009-01-30 19:42:55 -0600 (Fri, 30 Jan 2009) | 1 line

  check the errno in bad fd cases
........
  r69130 | andrew.kuchling | 2009-01-30 20:50:09 -0600 (Fri, 30 Jan 2009) | 1 line

  Add a section
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  r69131 | andrew.kuchling | 2009-01-30 21:26:02 -0600 (Fri, 30 Jan 2009) | 1 line

  Text edits and markup fixes
........
  r69139 | mark.dickinson | 2009-01-31 10:44:04 -0600 (Sat, 31 Jan 2009) | 2 lines

  Add an extra test for long <-> float hash equivalence.
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  r69140 | benjamin.peterson | 2009-01-31 10:52:03 -0600 (Sat, 31 Jan 2009) | 1 line

  PyErr_BadInternalCall() raises a SystemError, not TypeError #5112
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  r69143 | benjamin.peterson | 2009-01-31 15:00:10 -0600 (Sat, 31 Jan 2009) | 1 line

  I believe the intention here was to avoid a global lookup
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  r69154 | benjamin.peterson | 2009-01-31 16:33:02 -0600 (Sat, 31 Jan 2009) | 1 line

  fix indentation in comment
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  r69155 | david.goodger | 2009-01-31 16:53:46 -0600 (Sat, 31 Jan 2009) | 1 line

  markup fix
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  r69156 | gregory.p.smith | 2009-01-31 16:57:30 -0600 (Sat, 31 Jan 2009) | 4 lines

  - Issue #5104: The socket module now raises OverflowError when 16-bit port and
    protocol numbers are supplied outside the allowed 0-65536 range on bind()
    and getservbyport().
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  r69157 | benjamin.peterson | 2009-01-31 17:43:25 -0600 (Sat, 31 Jan 2009) | 1 line

  add explanatory comment
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  r69158 | benjamin.peterson | 2009-01-31 17:54:38 -0600 (Sat, 31 Jan 2009) | 1 line

  more flags which only work for function blocks
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  r69159 | gregory.p.smith | 2009-01-31 18:16:01 -0600 (Sat, 31 Jan 2009) | 2 lines

  Update doc wording as suggested in issue4903.
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  r69169 | guilherme.polo | 2009-01-31 20:56:16 -0600 (Sat, 31 Jan 2009) | 3 lines

  Restore Tkinter.Tk._loadtk so this test doesn't fail for problems
  related to ttk.
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  r69288 | georg.brandl | 2009-02-05 04:30:57 -0600 (Thu, 05 Feb 2009) | 1 line

  #5153: fix typo in example.
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  r69289 | georg.brandl | 2009-02-05 04:37:07 -0600 (Thu, 05 Feb 2009) | 1 line

  #5144: document that PySys_SetArgv prepends the script directory (or the empty string) to sys.path.
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  r69293 | georg.brandl | 2009-02-05 04:59:28 -0600 (Thu, 05 Feb 2009) | 1 line

  #5059: fix example.
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  r69297 | georg.brandl | 2009-02-05 05:32:18 -0600 (Thu, 05 Feb 2009) | 1 line

  #5015: document PythonHome API functions.
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  r69298 | georg.brandl | 2009-02-05 05:33:21 -0600 (Thu, 05 Feb 2009) | 1 line

  #4827: fix callback example.
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  r69299 | georg.brandl | 2009-02-05 05:35:28 -0600 (Thu, 05 Feb 2009) | 1 line

  #4820: use correct module for ctypes.util.
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  r69300 | georg.brandl | 2009-02-05 05:38:23 -0600 (Thu, 05 Feb 2009) | 1 line

  #4563: disable alpha and roman lists, fixes wrong formatting of contributor list.
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  r69301 | georg.brandl | 2009-02-05 05:40:35 -0600 (Thu, 05 Feb 2009) | 1 line

  #5031: fix Thread.daemon property docs.
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  r69348 | benjamin.peterson | 2009-02-05 19:47:31 -0600 (Thu, 05 Feb 2009) | 1 line

  fix download link
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2009-02-06 02:40:07 +00:00
Eric Smith
0e5b562987 Merged revisions 69331 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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  r69331 | eric.smith | 2009-02-05 19:48:26 -0500 (Thu, 05 Feb 2009) | 2 lines

  Implement issue #4285, convert sys.version_info to a named
  tuple. Patch by Ross Light.
........
2009-02-06 01:32:42 +00:00
Mark Dickinson
e94c679df0 Issue #1717: rename tp_compare to tp_reserved. I'll change the
type of tp_compare in a separate commit, for ease of reversion
should things go wrong.
2009-02-02 20:36:42 +00:00
Mark Dickinson
f02e0aaafd Issue #1717: remove the cmp builtin function, the C-API functions
PyObject_Cmp, PyObject_Compare, and various support functions.
2009-02-01 12:13:56 +00:00
Mark Dickinson
72ead17c8a Make Python/makeopcodetargets runnable with Python 2.3. With any luck, this
should solve the 'failed compile' on the x86 gentoo 3.x buildbot.
2009-01-31 12:12:41 +00:00
Hirokazu Yamamoto
90eaaf623a Issue #5041: Fixed memory leak. 2009-01-30 03:15:05 +00:00
Mark Dickinson
1124e71368 Issue #4707: round(x, n) now returns an integer when x is an integer.
Previously it returned a float.
2009-01-28 21:25:58 +00:00
Mark Hammond
9844a1ffc3 Merged revisions 69038 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r69038 | mark.hammond | 2009-01-28 10:12:23 +1100 (Wed, 28 Jan 2009) | 3 lines

  On Windows, use the Python 'Activation Context' when loading extensions
  to avoid problems loading the CRT from a private assembly.  Via bug 4566.
........
2009-01-27 23:46:57 +00:00
Antoine Pitrou
957929fa88 Add executable property to Python/makeopcodetargets.py 2009-01-27 10:49:58 +00:00
Antoine Pitrou
27fe9fc448 Followup of #4705: we can't skip the binary buffering layer for stdin because FileIO doesn't have a read1() method 2009-01-26 21:48:00 +00:00
Antoine Pitrou
b52ec78baf Issue #4753: By enabling a configure option named '--with-computed-gotos'
on compilers that support it (notably: gcc, SunPro, icc), the bytecode
evaluation loop is compiled with a new dispatch mechanism which gives
speedups of up to 20%, depending on the system, on various benchmarks.
2009-01-25 16:34:23 +00:00
Kristján Valur Jónsson
92cb438448 Issue 3677: Release the path string on py3k 2009-01-24 10:33:25 +00:00
Hirokazu Yamamoto
21cbf5f896 Merged revisions 68457 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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  r68457 | kristjan.jonsson | 2009-01-10 05:10:59 +0900 | 1 line

  Issue 3677:  Fix import from UNC paths on Windows.
........
2009-01-23 07:23:03 +00:00
Benjamin Peterson
b58dda7bdb Merged revisions 68633,68648,68667,68706,68718,68720-68721,68724-68727,68739 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r68633 | thomas.heller | 2009-01-16 12:53:44 -0600 (Fri, 16 Jan 2009) | 3 lines

  Change an example in the docs to avoid a mistake when the code is copy
  pasted and changed afterwards.
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  r68648 | benjamin.peterson | 2009-01-16 22:28:57 -0600 (Fri, 16 Jan 2009) | 1 line

  use enumerate
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  r68667 | amaury.forgeotdarc | 2009-01-17 14:18:59 -0600 (Sat, 17 Jan 2009) | 3 lines

  #4077: No need to append \n when calling Py_FatalError
  + fix a declaration to make it match the one in pythonrun.h
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  r68706 | benjamin.peterson | 2009-01-17 19:28:46 -0600 (Sat, 17 Jan 2009) | 1 line

  fix grammar
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  r68718 | georg.brandl | 2009-01-18 04:42:35 -0600 (Sun, 18 Jan 2009) | 1 line

  #4976: union() and intersection() take multiple args, but talk about "the other".
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  r68720 | georg.brandl | 2009-01-18 04:45:22 -0600 (Sun, 18 Jan 2009) | 1 line

  #4974: fix redundant mention of lists and tuples.
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  r68721 | georg.brandl | 2009-01-18 04:48:16 -0600 (Sun, 18 Jan 2009) | 1 line

  #4914: trunc is in math.
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  r68724 | georg.brandl | 2009-01-18 07:24:10 -0600 (Sun, 18 Jan 2009) | 1 line

  #4979: correct result range for some random functions.
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  r68725 | georg.brandl | 2009-01-18 07:47:26 -0600 (Sun, 18 Jan 2009) | 1 line

  #4857: fix augmented assignment target spec.
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  r68726 | georg.brandl | 2009-01-18 08:41:52 -0600 (Sun, 18 Jan 2009) | 1 line

  #4923: clarify what was added.
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  r68727 | georg.brandl | 2009-01-18 12:25:30 -0600 (Sun, 18 Jan 2009) | 1 line

  #4986: augassigns are not expressions.
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  r68739 | benjamin.peterson | 2009-01-18 15:11:38 -0600 (Sun, 18 Jan 2009) | 1 line

  fix test that wasn't working as expected #4990
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2009-01-18 22:27:04 +00:00
Benjamin Peterson
b4ddfa41cc fix compiler warning 2009-01-17 23:46:54 +00:00
Benjamin Peterson
e5bf383959 Merged revisions 68460 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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  r68460 | kristjan.jonsson | 2009-01-09 14:31:26 -0600 (Fri, 09 Jan 2009) | 1 line

  Issue 4293:  Make Py_AddPendingCall() thread safe
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2009-01-17 23:43:58 +00:00
Amaury Forgeot d'Arc
f343e01c17 Merged revisions 68560 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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  r68560 | amaury.forgeotdarc | 2009-01-13 00:36:55 +0100 (mar., 13 janv. 2009) | 6 lines

  #3720: Interpreter crashes when an evil iterator removes its own next function.

  Now the slot is filled with a function that always raises.

  Will not backport: extensions compiled with 2.6.x would not run on 2.6.0.
........
2009-01-12 23:58:21 +00:00
Martin v. Löwis
7c2b66cc02 Merged revisions 68455,68476,68542 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r68455 | kristjan.jonsson | 2009-01-09 21:03:27 +0100 (Fr, 09 Jan 2009) | 1 line

  Issue 3582.  Improved thread support and TLS for Windows
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  r68476 | kristjan.jonsson | 2009-01-10 13:14:31 +0100 (Sa, 10 Jan 2009) | 1 line

  Issue 4906:  Preserve windows error state across PyThread_get_key_value
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  r68542 | martin.v.loewis | 2009-01-12 09:11:24 +0100 (Mo, 12 Jan 2009) | 2 lines

  Issue #4893: Use NT threading on CE.
........
2009-01-12 08:21:03 +00:00