Commit Graph

157 Commits

Author SHA1 Message Date
Irit Katriel c99fc4e53a
bpo-45168: change dis output to omit missing values rather than replacing them by their index (GH-28313) 2021-09-14 10:09:05 +01:00
Irit Katriel 04676b6946
bpo-45017: move opcode-related logic from modulefinder to dis (GH-28246) 2021-09-09 14:04:12 +01:00
Batuhan Taskaya 85ea2d6165
bpo-43950: support positions for dis.Instructions created through dis.Bytecode (GH-28142) 2021-09-03 18:29:09 +03:00
Batuhan Taskaya 693cec0e2d
bpo-43950: include position in dis.Instruction (GH-27015)
Automerge-Triggered-By: GH:isidentical
2021-07-04 12:05:05 -07:00
Eric Snow 2ab27c4af4
bpo-43693: Un-revert commits 2c1e258 and b2bf2bc. (gh-26577)
These were reverted in gh-26530 (commit 17c4edc) due to refleaks.

* 2c1e258 - Compute deref offsets in compiler (gh-25152)
* b2bf2bc - Add new internal code objects fields: co_fastlocalnames and co_fastlocalkinds. (gh-26388)

This change fixes the refleaks.

https://bugs.python.org/issue43693
2021-06-07 12:22:26 -06:00
Pablo Galindo 17c4edc4e0
bpo-43693: Revert commits 2c1e2583fd and b2bf2bc1ec (GH-26530)
* Revert "bpo-43693: Compute deref offsets in compiler (gh-25152)"

This reverts commit b2bf2bc1ec.

* Revert "bpo-43693: Add new internal code objects fields: co_fastlocalnames and co_fastlocalkinds. (gh-26388)"

This reverts commit 2c1e2583fd.

These two commits are breaking the refleak buildbots.
2021-06-04 17:51:05 +01:00
Mark Shannon b2bf2bc1ec
bpo-43693: Compute deref offsets in compiler (gh-25152)
Merges locals and cells into a single array.
Saves a pointer in the interpreter and means that we don't need the LOAD_CLOSURE opcode any more

https://bugs.python.org/issue43693
2021-06-03 18:03:54 -06:00
Eric Snow 2c1e2583fd
bpo-43693: Add new internal code objects fields: co_fastlocalnames and co_fastlocalkinds. (gh-26388)
A number of places in the code base (notably ceval.c and frameobject.c) rely on mapping variable names to indices in the frame "locals plus" array (AKA fast locals), and thus opargs.  Currently the compiler indirectly encodes that information on the code object as the tuples co_varnames, co_cellvars, and co_freevars.  At runtime the dependent code must calculate the proper mapping from those, which isn't ideal and impacts performance-sensitive sections.  This is something we can easily address in the compiler instead.

This change addresses the situation by replacing internal use of co_varnames, etc. with a single combined tuple of names in locals-plus order, along with a minimal array mapping each to its kind (local vs. cell vs. free).  These two new PyCodeObject fields, co_fastlocalnames and co_fastllocalkinds, are not exposed to Python code for now, but co_varnames, etc. are still available with the same values as before (though computed lazily).

Aside from the (mild) performance impact, there are a number of other benefits:

* there's now a clear, direct relationship between locals-plus and variables
* code that relies on the locals-plus-to-name mapping is simpler
* marshaled code objects are smaller and serialize/de-serialize faster

Also note that we can take this approach further by expanding the possible values in co_fastlocalkinds to include specific argument types (e.g. positional-only, kwargs).  Doing so would allow further speed-ups in _PyEval_MakeFrameVector(), which is where args get unpacked into the locals-plus array.  It would also allow us to shrink marshaled code objects even further.

https://bugs.python.org/issue43693
2021-06-03 10:28:27 -06:00
Mark Shannon adcd220556
bpo-40222: "Zero cost" exception handling (GH-25729)
"Zero cost" exception handling.

* Uses a lookup table to determine how to handle exceptions.
* Removes SETUP_FINALLY and POP_TOP block instructions, eliminating (most of) the runtime overhead of try statements.
* Reduces the size of the frame object by about 60%.
2021-05-07 15:19:19 +01:00
Mark Shannon fcb55c0037
bpo-27129: Use instruction offsets, not byte offsets, in bytecode and internally. (GH-25069)
* Use instruction offset, rather than bytecode offset. Streamlines interpreter dispatch a bit, and removes most EXTENDED_ARGs for jumps.

* Change some uses of PyCode_Addr2Line to PyFrame_GetLineNumber
2021-04-01 16:00:31 +01:00
Yurii Karabas f24b8101a0
bpo-42562: Fix issue when dis failed to parse function that has no line numbers (GH-23632)
Fix issue when dis failed to parse function that has only annotations
2020-12-04 15:20:53 +00:00
Mark Shannon 877df851c3
bpo-42246: Partial implementation of PEP 626. (GH-23113)
* Implement new line number table format, as defined in PEP 626.
2020-11-12 09:43:29 +00:00
Konge a4084b9d1e
bpo-41497: Fix potential UnicodeDecodeError in dis CLI (GH-21757) 2020-08-08 12:03:09 +09:00
T. Wouters c8165036f3 bpo-38115: Deal with invalid bytecode offsets in lnotab (GH-16079)
Document that lnotab can contain invalid bytecode offsets (because of
terrible reasons that are difficult to fix). Make dis.findlinestarts()
ignore invalid offsets in lnotab. All other uses of lnotab in CPython
(various reimplementations of addr2line or line2addr in Python, C and gdb)
already ignore this, because they take an address to look for, instead.

Add tests for the result of dis.findlinestarts() on wacky constructs in
test_peepholer.py, because it's the easiest place to add them.
2019-09-28 07:49:15 -07:00
Pablo Galindo 8c77b8cb91
bpo-36540: PEP 570 -- Implementation (GH-12701)
This commit contains the implementation of PEP570: Python positional-only parameters.

* Update Grammar/Grammar with new typedarglist and varargslist

* Regenerate grammar files

* Update and regenerate AST related files

* Update code object

* Update marshal.c

* Update compiler and symtable

* Regenerate importlib files

* Update callable objects

* Implement positional-only args logic in ceval.c

* Regenerate frozen data

* Update standard library to account for positional-only args

* Add test file for positional-only args

* Update other test files to account for positional-only args

* Add News entry

* Update inspect module and related tests
2019-04-29 13:36:57 +01:00
Serhiy Storchaka e2732d3e66
bpo-32970: Improve disassembly of the MAKE_FUNCTION instruction. (GH-5937) 2018-03-11 11:07:06 +02:00
syncosmic fe2b56ab92 bpo-31183: `dis` now handles coroutines & async generators (GH-3077)
Coroutines and async generators use a distinct attribute name for their
code objects, so this updates the `dis` module to correctly disassemble
objects with those attributes.

Due to the increase in the test module length, it also fixes some latent
defects in the tests related to how the displayed source line numbers
are extracted.

https://bugs.python.org/issue31230 is a follow-up issue suggesting we
may want to solve this a different way, by instead giving all these object
types a common `__code__` attribute, avoiding the need for special
casing in the `dis` module.
2017-08-18 12:29:21 +10:00
Serhiy Storchaka 1efbf92e90 bpo-11822: Improve disassembly to show embedded code objects. (#1844)
The depth argument limits recursion.
2017-06-11 14:09:39 +03:00
Serhiy Storchaka d90045f319 bpo-22352: Adjust widths in the output of dis.dis() for large line numbers and (#1153)
instruction offsets.

Add tests for widths of opcode names.
2017-04-19 20:36:31 +03:00
Serhiy Storchaka 5affd23e6f bpo-29762: More use "raise from None". (#569)
This hides unwanted implementation details from tracebacks.
2017-04-05 09:37:24 +03:00
Serhiy Storchaka dd102f7af8 Issue #28317: The disassembler now decodes FORMAT_VALUE argument. 2016-10-08 12:34:25 +03:00
Serhiy Storchaka b72810583e Issue #27213: Fixed different issues with reworked CALL_FUNCTION* opcodes.
* BUILD_TUPLE_UNPACK and BUILD_MAP_UNPACK_WITH_CALL no longer generated with
  single tuple or dict.
* Restored more informative error messages for incorrect var-positional and
  var-keyword arguments.
* Removed code duplications in _PyEval_EvalCodeWithName().
* Removed redundant runtime checks and parameters in _PyStack_AsDict().
* Added a workaround and enabled previously disabled test in test_traceback.
* Removed dead code from the dis module.
2016-09-12 00:52:40 +03:00
Victor Stinner f9b760f48a Rework CALL_FUNCTION* opcodes
Issue #27213: Rework CALL_FUNCTION* opcodes to produce shorter and more
efficient bytecode:

* CALL_FUNCTION now only accepts position arguments
* CALL_FUNCTION_KW accepts position arguments and keyword arguments, but keys
  of keyword arguments are packed into a constant tuple.
* CALL_FUNCTION_EX is the most generic, it expects a tuple and a dict for
  positional and keyword arguments.

CALL_FUNCTION_VAR and CALL_FUNCTION_VAR_KW opcodes have been removed.

2 tests of test_traceback are currently broken: skip test, the issue #28050 was
created to track the issue.

Patch by Demur Rumed, design by Serhiy Storchaka, reviewed by Serhiy Storchaka
and Victor Stinner.
2016-09-09 10:17:08 -07:00
Yury Selivanov eb6364557f Issue #28003: Implement PEP 525 -- Asynchronous Generators. 2016-09-08 22:01:51 -07:00
Serhiy Storchaka b0f80b0312 Issue #26647: Python interpreter now uses 16-bit wordcode instead of bytecode.
Patch by Demur Rumed.
2016-05-24 09:15:14 +03:00
Serhiy Storchaka 3e99fdeed5 Issue #26881: The modulefinder module now supports extended opcode arguments. 2016-05-08 23:44:54 +03:00
Serhiy Storchaka 02d9f5e5b2 Issue #26881: The modulefinder module now supports extended opcode arguments. 2016-05-08 23:43:50 +03:00
Serhiy Storchaka 8b9eefc363 Issue #26733: Disassembling a class now disassembles class and static methods.
Patch by Xiang Zhang.
2016-04-23 09:24:29 +03:00
Serhiy Storchaka 585c93daea Issue #26733: Disassembling a class now disassembles class and static methods.
Patch by Xiang Zhang.
2016-04-23 09:23:52 +03:00
Victor Stinner f3914eb16d co_lnotab supports negative line number delta
Issue #26107: The format of the co_lnotab attribute of code objects changes to
support negative line number delta.

Changes:

* assemble_lnotab(): if line number delta is less than -128 or greater than
  127, emit multiple (offset_delta, lineno_delta) in co_lnotab
* update functions decoding co_lnotab to use signed 8-bit integers

  - dis.findlinestarts()
  - PyCode_Addr2Line()
  - _PyCode_CheckLineNumber()
  - frame_setlineno()

* update lnotab_notes.txt
* increase importlib MAGIC_NUMBER to 3361
* document the change in What's New in Python 3.6
* cleanup also PyCode_Optimize() to use better variable names
2016-01-20 12:16:21 +01:00
Raymond Hettinger 5b798abf5b Issue #24878: Add docstrings to selected namedtuples 2015-08-17 22:04:45 -07:00
Yury Selivanov 7544508f02 PEP 0492 -- Coroutines with async and await syntax. Issue #24017. 2015-05-11 22:57:16 -04:00
Nick Coghlan efd5df9e52 Issue #21947: handle generator-iterator objects in dis
Patch by Clement Rouault.
2014-07-25 23:02:56 +10:00
Nick Coghlan 50c48b89e3 Close #17916: dis.Bytecode based replacement for distb
- Bytecode.from_traceback() alternate constructor
- current_offset parameter and attribute

Patch by Claudiu Popa
2013-11-23 00:57:00 +10:00
Nick Coghlan 90b8e7d2bc Close #19378: address flaws in the new dis module APIs
- confusing line_offset parameter -> first_line parameter
- systematically test and fix new file parameter
- remove redundant Bytecode.show_info() API
- rename Bytecode.display_code() to Bytecode.dis() and have it
  return the multi-line string rather than printing it directly
- eliminated some not-so-helpful helpers from the bytecode_helper
  test support module

Also fixed a longstanding defect (worked around in the test suite)
where lines emitted by the dis module could include trailing white
space. That no longer happens, allowing the formatting tests to be
simplified to use plain string comparisons.
2013-11-06 22:08:36 +10:00
Nick Coghlan 095668914c Close #18538: ``python -m dis`` now uses argparse.
Patch by Michele Orrù.
2013-08-25 00:48:17 +10:00
Ezio Melotti 6e6c6ac3d7 #18796: improve documentation of the file argument of dis.show_code. Initial patch by Vajrasky Kok. 2013-08-23 22:41:39 +03:00
Nick Coghlan b39fd0c9b8 Issue #11816: multiple improvements to the dis module
* get_instructions generator
* ability to redirect output to a file
* Bytecode and Instruction abstractions

Patch by Nick Coghlan, Ryan Kelly and Thomas Kluyver.
2013-05-06 23:59:20 +10:00
Alexander Belopolsky 74482201b8 Issue #11823: disassembly now shows argument counts on calls with keyword args 2012-06-07 14:28:14 -04:00
Nick Coghlan e8814fbb32 As per python-dev discussion with Eli, properly document and publish dis.show_code 2010-09-10 14:08:04 +00:00
Nick Coghlan c02adca999 Leave show_code out of __all__ and make it clear that its lack of documentation is deliberate 2010-09-10 12:32:58 +00:00
Nick Coghlan 7646f7ef4a Fix dis.__all__ for new additions to module in 3.2(spotted by Eli Bendersky) 2010-09-10 12:24:24 +00:00
Nick Coghlan 09c8123e6f Address XXX comment in dis.py: inspect.py now attempts to reuse the dis.py compiler flag values before resorting to defining its own 2010-08-17 10:18:16 +00:00
Nick Coghlan eae2da1da7 Issue 9147: Add dis.code_info() 2010-08-17 08:03:36 +00:00
Nick Coghlan 5c8b54eb04 Issue 6507: accept source strings directly in dis.dis(). Original patch by Daniel Urban 2010-07-03 07:36:51 +00:00
Benjamin Peterson 6ef9a844f2 factor out constant 2010-04-04 23:26:50 +00:00
Benjamin Peterson 75edad0502 Merged revisions 68116-68119,68121,68123-68127 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r68116 | georg.brandl | 2009-01-01 05:46:51 -0600 (Thu, 01 Jan 2009) | 2 lines

  #4100: note that element children are not necessarily present on "start" events.
........
  r68117 | georg.brandl | 2009-01-01 05:53:55 -0600 (Thu, 01 Jan 2009) | 2 lines

  #4156: make clear that "protocol" is to be replaced with the protocol name.
........
  r68118 | georg.brandl | 2009-01-01 06:00:19 -0600 (Thu, 01 Jan 2009) | 2 lines

  #4185: clarify escape behavior of replacement strings.
........
  r68119 | georg.brandl | 2009-01-01 06:09:40 -0600 (Thu, 01 Jan 2009) | 3 lines

  #4222: document dis.findlabels() and dis.findlinestarts() and
  put them into dis.__all__.
........
  r68121 | georg.brandl | 2009-01-01 06:43:33 -0600 (Thu, 01 Jan 2009) | 2 lines

  Point to types module in new module deprecation notice.
........
  r68123 | georg.brandl | 2009-01-01 06:52:29 -0600 (Thu, 01 Jan 2009) | 2 lines

  #4784: ... on three counts ...
........
  r68124 | georg.brandl | 2009-01-01 06:53:19 -0600 (Thu, 01 Jan 2009) | 2 lines

  #4782: Fix markup error that hid load() and loads().
........
  r68125 | georg.brandl | 2009-01-01 07:02:09 -0600 (Thu, 01 Jan 2009) | 2 lines

  #4776: add data_files and package_dir arguments.
........
  r68126 | georg.brandl | 2009-01-01 07:05:13 -0600 (Thu, 01 Jan 2009) | 2 lines

  Handlers are in the `logging.handlers` module.
........
  r68127 | georg.brandl | 2009-01-01 07:14:49 -0600 (Thu, 01 Jan 2009) | 2 lines

  #4767: Use correct submodules for all MIME classes.
........
2009-01-01 15:05:06 +00:00
Alexandre Vassalotti 267d417377 Fixed isinstance() check in dis.dis(). 2008-06-04 20:26:54 +00:00
Christian Heimes ff737954f3 Removed the API to create unbound methods and simplified the API for bound methods. The signature is PyMethod_New(func, instance).
Also removed im_class and renamed im_self to __self__ and im_func to __func__. im_class can be substituted with method.__self__.__class__.
I've also updated some parts of the documenation.
2007-11-27 10:40:20 +00:00
Guido van Rossum 75a902db78 Patch 1280, by Alexandre Vassalotti.
Make PyString's indexing and iteration return integers.
(I changed a few of Alexandre's decisions -- GvR.)
2007-10-19 22:06:24 +00:00
Collin Winter ce36ad8a46 Raise statement normalization in Lib/. 2007-08-30 01:19:48 +00:00
Guido van Rossum 1325790b93 Merged revisions 55795-55816 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/p3yk

........
  r55797 | neal.norwitz | 2007-06-07 00:00:57 -0700 (Thu, 07 Jun 2007) | 3 lines

  Get rid of some remnants of classic classes.  types.ClassType == type.
  Also get rid of almost all uses of the types module and use the builtin name.
........
  r55798 | neal.norwitz | 2007-06-07 00:12:36 -0700 (Thu, 07 Jun 2007) | 1 line

  Remove a use of types, verify commit hook works
........
  r55809 | guido.van.rossum | 2007-06-07 11:11:29 -0700 (Thu, 07 Jun 2007) | 2 lines

  Fix syntax error introduced by Neal in last checkin.
........
2007-06-07 23:15:56 +00:00
Guido van Rossum e7ba495627 Merged revisions 55631-55794 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/p3yk

................
  r55636 | neal.norwitz | 2007-05-29 00:06:39 -0700 (Tue, 29 May 2007) | 149 lines

  Merged revisions 55506-55635 via svnmerge from
  svn+ssh://pythondev@svn.python.org/python/trunk

  ........
    r55507 | georg.brandl | 2007-05-22 07:28:17 -0700 (Tue, 22 May 2007) | 2 lines

    Remove the "panel" module doc file which has been ignored since 1994.
  ........
    r55522 | mark.hammond | 2007-05-22 19:04:28 -0700 (Tue, 22 May 2007) | 4 lines

    Remove definition of PY_UNICODE_TYPE from pyconfig.h, allowing the
    definition in unicodeobject.h to be used, giving us the desired
    wchar_t in place of 'unsigned short'.  As discussed on python-dev.
  ........
    r55525 | neal.norwitz | 2007-05-22 23:35:32 -0700 (Tue, 22 May 2007) | 6 lines

    Add -3 option to the interpreter to warn about features that are
    deprecated and will be changed/removed in Python 3.0.

    This patch is mostly from Anthony.  I tweaked some format and added
    a little doc.
  ........
    r55527 | neal.norwitz | 2007-05-22 23:57:35 -0700 (Tue, 22 May 2007) | 1 line

    Whitespace cleanup
  ........
    r55528 | neal.norwitz | 2007-05-22 23:58:36 -0700 (Tue, 22 May 2007) | 1 line

    Add a bunch more deprecation warnings for builtins that are going away in 3.0
  ........
    r55549 | georg.brandl | 2007-05-24 09:49:29 -0700 (Thu, 24 May 2007) | 2 lines

    shlex.split() now has an optional "posix" parameter.
  ........
    r55550 | georg.brandl | 2007-05-24 10:33:33 -0700 (Thu, 24 May 2007) | 2 lines

    Fix parameter passing.
  ........
    r55555 | facundo.batista | 2007-05-24 10:50:54 -0700 (Thu, 24 May 2007) | 6 lines


    Added an optional timeout parameter to urllib.ftpwrapper, with tests
    (for this and a basic one, because there weren't any). Changed also
    NEWS, but didn't find documentation for this function, assumed it
    wasn't public...
  ........
    r55563 | facundo.batista | 2007-05-24 13:01:59 -0700 (Thu, 24 May 2007) | 4 lines


    Removed the .recv() in the test, is not necessary, and was
    causing problems that didn't have anything to do with was
    actually being tested...
  ........
    r55564 | facundo.batista | 2007-05-24 13:51:19 -0700 (Thu, 24 May 2007) | 5 lines


    Let's see if reading exactly what is written allow this live
    test to pass (now I know why there were so few tests in ftp,
    http, etc, :( ).
  ........
    r55567 | facundo.batista | 2007-05-24 20:10:28 -0700 (Thu, 24 May 2007) | 4 lines


    Trying to make the tests work in Windows and Solaris, everywhere
    else just works
  ........
    r55568 | facundo.batista | 2007-05-24 20:47:19 -0700 (Thu, 24 May 2007) | 4 lines


    Fixing stupid error, and introducing a sleep, to see if the
    other thread is awakened and finish sending data.
  ........
    r55569 | facundo.batista | 2007-05-24 21:20:22 -0700 (Thu, 24 May 2007) | 4 lines


    Commenting out the tests until find out who can test them in
    one of the problematic enviroments.
  ........
    r55570 | neal.norwitz | 2007-05-24 22:13:40 -0700 (Thu, 24 May 2007) | 2 lines

    Get test passing again by commenting out the reference to the test class.
  ........
    r55575 | vinay.sajip | 2007-05-25 00:05:59 -0700 (Fri, 25 May 2007) | 1 line

    Updated docstring for SysLogHandler (#1720726).
  ........
    r55576 | vinay.sajip | 2007-05-25 00:06:55 -0700 (Fri, 25 May 2007) | 1 line

    Updated documentation for SysLogHandler (#1720726).
  ........
    r55592 | brett.cannon | 2007-05-25 13:17:15 -0700 (Fri, 25 May 2007) | 3 lines

    Remove direct call's to file's constructor and replace them with calls to
    open() as ths is considered best practice.
  ........
    r55601 | kristjan.jonsson | 2007-05-26 12:19:50 -0700 (Sat, 26 May 2007) | 1 line

    Remove the rgbimgmodule from PCBuild8
  ........
    r55602 | kristjan.jonsson | 2007-05-26 12:31:39 -0700 (Sat, 26 May 2007) | 1 line

    Include <windows.h> after python.h, so that WINNT is properly set before windows.h is included.  Fixes warnings in PC builds.
  ........
    r55603 | walter.doerwald | 2007-05-26 14:04:13 -0700 (Sat, 26 May 2007) | 2 lines

    Fix typo.
  ........
    r55604 | peter.astrand | 2007-05-26 15:18:20 -0700 (Sat, 26 May 2007) | 1 line

    Applied patch 1669481, slightly modified: Support close_fds on Win32
  ........
    r55606 | neal.norwitz | 2007-05-26 21:08:54 -0700 (Sat, 26 May 2007) | 2 lines

    Add the new function object attribute names from py3k.
  ........
    r55617 | lars.gustaebel | 2007-05-27 12:49:30 -0700 (Sun, 27 May 2007) | 20 lines

    Added errors argument to TarFile class that allows the user to
    specify an error handling scheme for character conversion. Additional
    scheme "utf-8" in read mode. Unicode input filenames are now
    supported by design. The values of the pax_headers dictionary are now
    limited to unicode objects.

    Fixed: The prefix field is no longer used in PAX_FORMAT (in
    conformance with POSIX).
    Fixed: In read mode use a possible pax header size field.
    Fixed: Strip trailing slashes from pax header name values.
    Fixed: Give values in user-specified pax_headers precedence when
    writing.

    Added unicode tests. Added pax/regtype4 member to testtar.tar all
    possible number fields in a pax header.

    Added two chapters to the documentation about the different formats
    tarfile.py supports and how unicode issues are handled.
  ........
    r55618 | raymond.hettinger | 2007-05-27 22:23:22 -0700 (Sun, 27 May 2007) | 1 line

    Explain when groupby() issues a new group.
  ........
    r55634 | martin.v.loewis | 2007-05-28 21:01:29 -0700 (Mon, 28 May 2007) | 2 lines

    Test pre-commit hook for a link to a .py file.
  ........
    r55635 | martin.v.loewis | 2007-05-28 21:02:03 -0700 (Mon, 28 May 2007) | 2 lines

    Revert 55634.
  ........
................
  r55639 | neal.norwitz | 2007-05-29 00:58:11 -0700 (Tue, 29 May 2007) | 1 line

  Remove sys.exc_{type,exc_value,exc_traceback}
................
  r55641 | neal.norwitz | 2007-05-29 01:03:50 -0700 (Tue, 29 May 2007) | 1 line

  Missed one sys.exc_type.  I wonder why exc_{value,traceback} were already gone
................
  r55642 | neal.norwitz | 2007-05-29 01:08:33 -0700 (Tue, 29 May 2007) | 1 line

  Missed more doc for sys.exc_* attrs.
................
  r55643 | neal.norwitz | 2007-05-29 01:18:19 -0700 (Tue, 29 May 2007) | 1 line

  Remove sys.exc_clear()
................
  r55665 | guido.van.rossum | 2007-05-29 19:45:43 -0700 (Tue, 29 May 2007) | 4 lines

  Make None, True, False keywords.
  We can now also delete all the other places that explicitly forbid
  assignment to None, but I'm not going to bother right now.
................
  r55666 | guido.van.rossum | 2007-05-29 20:01:51 -0700 (Tue, 29 May 2007) | 3 lines

  Found another place that needs check for forbidden names.
  Fixed test_syntax.py accordingly (it helped me find that one).
................
  r55668 | guido.van.rossum | 2007-05-29 20:41:48 -0700 (Tue, 29 May 2007) | 2 lines

  Mark None, True, False as keywords.
................
  r55673 | neal.norwitz | 2007-05-29 23:28:25 -0700 (Tue, 29 May 2007) | 3 lines

  Get the dis module working on modules again after changing dicts
  to not return lists and also new-style classes.  Add a test.
................
  r55674 | neal.norwitz | 2007-05-29 23:35:45 -0700 (Tue, 29 May 2007) | 1 line

  Umm, it helps to add the module that the test uses
................
  r55675 | neal.norwitz | 2007-05-29 23:53:05 -0700 (Tue, 29 May 2007) | 4 lines

  Try to fix up all the other places that were assigning to True/False.
  There's at least one more problem in test.test_xmlrpc.  I have other
  changes in that file and that should be fixed soon (I hope).
................
  r55679 | neal.norwitz | 2007-05-30 00:31:55 -0700 (Wed, 30 May 2007) | 1 line

  Fix up another place that was assigning to True/False.
................
  r55688 | brett.cannon | 2007-05-30 14:19:47 -0700 (Wed, 30 May 2007) | 2 lines

  Ditch MimeWriter.
................
  r55692 | brett.cannon | 2007-05-30 14:52:00 -0700 (Wed, 30 May 2007) | 2 lines

  Remove the mimify module.
................
  r55707 | guido.van.rossum | 2007-05-31 05:08:45 -0700 (Thu, 31 May 2007) | 2 lines

  Backport the addition of show_code() to dis.py -- it's too handy.
................
  r55708 | guido.van.rossum | 2007-05-31 06:22:57 -0700 (Thu, 31 May 2007) | 7 lines

  Fix a fairly long-standing bug in the check for assignment to None (and other
  keywords, these days).  In 2.5, you could write foo(None=1) without getting
  a SyntaxError (although foo()'s definition would have to use **kwds to avoid
  getting a runtime error complaining about an unknown keyword of course).

  This ought to be backported to 2.5.2 or at least 2.6.
................
  r55724 | brett.cannon | 2007-05-31 19:32:41 -0700 (Thu, 31 May 2007) | 2 lines

  Remove the cfmfile.
................
  r55727 | neal.norwitz | 2007-05-31 22:19:44 -0700 (Thu, 31 May 2007) | 1 line

  Remove reload() builtin.
................
  r55729 | neal.norwitz | 2007-05-31 22:51:30 -0700 (Thu, 31 May 2007) | 59 lines

  Merged revisions 55636-55728 via svnmerge from
  svn+ssh://pythondev@svn.python.org/python/trunk

  ........
    r55637 | georg.brandl | 2007-05-29 00:16:47 -0700 (Tue, 29 May 2007) | 2 lines

    Fix rst markup.
  ........
    r55638 | neal.norwitz | 2007-05-29 00:51:39 -0700 (Tue, 29 May 2007) | 1 line

    Fix typo in doc
  ........
    r55671 | neal.norwitz | 2007-05-29 21:53:41 -0700 (Tue, 29 May 2007) | 1 line

    Fix indentation (whitespace only).
  ........
    r55676 | thomas.heller | 2007-05-29 23:58:30 -0700 (Tue, 29 May 2007) | 1 line

    Fix compiler warnings.
  ........
    r55677 | thomas.heller | 2007-05-30 00:01:25 -0700 (Wed, 30 May 2007) | 2 lines

    Correct the name of a field in the WIN32_FIND_DATAA and WIN32_FIND_DATAW structures.
    Closes bug #1726026.
  ........
    r55686 | brett.cannon | 2007-05-30 13:46:26 -0700 (Wed, 30 May 2007) | 2 lines

    Have MimeWriter raise a DeprecationWarning as per PEP 4 and its documentation.
  ........
    r55690 | brett.cannon | 2007-05-30 14:48:58 -0700 (Wed, 30 May 2007) | 3 lines

    Have mimify raise a DeprecationWarning.  The docs and PEP 4 have listed the
    module as deprecated for a while.
  ........
    r55696 | brett.cannon | 2007-05-30 15:24:28 -0700 (Wed, 30 May 2007) | 2 lines

    Have md5 raise a DeprecationWarning as per PEP 4.
  ........
    r55705 | neal.norwitz | 2007-05-30 21:14:22 -0700 (Wed, 30 May 2007) | 1 line

    Add some spaces in the example code.
  ........
    r55716 | brett.cannon | 2007-05-31 12:20:00 -0700 (Thu, 31 May 2007) | 2 lines

    Have the sha module raise a DeprecationWarning as specified in PEP 4.
  ........
    r55719 | brett.cannon | 2007-05-31 12:40:42 -0700 (Thu, 31 May 2007) | 2 lines

    Cause buildtools to raise a DeprecationWarning.
  ........
    r55721 | brett.cannon | 2007-05-31 13:01:11 -0700 (Thu, 31 May 2007) | 2 lines

    Have cfmfile raise a DeprecationWarning as per PEP 4.
  ........
    r55726 | neal.norwitz | 2007-05-31 21:56:47 -0700 (Thu, 31 May 2007) | 1 line

    Mail if there is an installation failure.
  ........
................
  r55730 | neal.norwitz | 2007-05-31 23:22:07 -0700 (Thu, 31 May 2007) | 2 lines

  Remove the code that was missed in rev 55303.
................
  r55738 | neal.norwitz | 2007-06-01 19:10:43 -0700 (Fri, 01 Jun 2007) | 1 line

  Fix doc breakage
................
  r55741 | neal.norwitz | 2007-06-02 00:41:58 -0700 (Sat, 02 Jun 2007) | 1 line

  Remove timing module (plus some remnants of other modules).
................
  r55742 | neal.norwitz | 2007-06-02 00:51:44 -0700 (Sat, 02 Jun 2007) | 1 line

  Remove posixfile module (plus some remnants of other modules).
................
  r55744 | neal.norwitz | 2007-06-02 10:18:56 -0700 (Sat, 02 Jun 2007) | 1 line

  Fix doc breakage.
................
  r55745 | neal.norwitz | 2007-06-02 11:32:16 -0700 (Sat, 02 Jun 2007) | 1 line

  Make a whatsnew 3.0 template.
................
  r55754 | neal.norwitz | 2007-06-03 23:24:18 -0700 (Sun, 03 Jun 2007) | 1 line

  SF #1730441, os._execvpe raises UnboundLocal due to new try/except semantics
................
  r55755 | neal.norwitz | 2007-06-03 23:26:00 -0700 (Sun, 03 Jun 2007) | 1 line

  Get rid of extra whitespace
................
  r55794 | guido.van.rossum | 2007-06-06 15:29:22 -0700 (Wed, 06 Jun 2007) | 3 lines

  Make this compile in GCC 2.96, which does not allow interspersing
  declarations and code.
................
2007-06-06 23:52:48 +00:00
Guido van Rossum 3e1b85ead1 Add a helper to display the various flags and components of code objects
(everything besides the actual code disassembly).
2007-05-30 02:07:00 +00:00
Neal Norwitz 221085de89 Change all the function attributes from func_* -> __*__. This gets rid
of func_name, func_dict and func_doc as they already exist as __name__,
__dict__ and __doc__.
2007-02-25 20:55:47 +00:00
Guido van Rossum be19ed77dd Fix most trivially-findable print statements.
There's one major and one minor category still unfixed:
doctests are the major category (and I hope to be able to augment the
refactoring tool to refactor bona fide doctests soon);
other code generating print statements in strings is the minor category.

(Oh, and I don't know if the compiler package works.)
2007-02-09 05:37:30 +00:00
Guido van Rossum e2a383d062 Rip out 'long' and 'L'-suffixed integer literals.
(Rough first cut.)
2007-01-15 16:59:06 +00:00
Guido van Rossum b940e113bf SF patch 1631942 by Collin Winter:
(a) "except E, V" -> "except E as V"
(b) V is now limited to a simple name (local variable)
(c) V is now deleted at the end of the except block
2007-01-10 16:19:56 +00:00
Guido van Rossum 65810fee5e SF patch 1495675: Remove types.InstanceType and new.instance
(Collin Winter)
2006-05-26 19:12:38 +00:00
Walter Dörwald 70a6b49821 Replace backticks with repr() or "%r"
From SF patch #852334.
2004-02-12 17:35:32 +00:00
Armin Rigo 9c8f7eafca Fixed dis.disassemble_string().
Added dis.findlinestarts().
SF bug 811294
2003-10-28 12:17:25 +00:00
Tim Peters 669454e9dc Whitespace normalization. 2003-03-07 17:30:48 +00:00
Skip Montanaro 19c6ba3664 * separate opcode definitions into opcode.py
* add disassemble_string
* allow classes and strings containing bytecode to be disassembled
2003-02-27 21:29:27 +00:00
Michael W. Hudson 53d58bb369 Further SET_LINENO reomval fixes. See comments in patch #587933.
Use a slightly different strategy to determine when not to call the line
trace function.  This removes the need for the RETURN_NONE opcode, so
that's gone again.  Update docs and comments to match.

Thanks to Neal and Armin!

Also add a test suite.  This should have come with the original patch...
2002-08-30 13:09:51 +00:00
Tim Peters 280488b9a3 Whitespace normalization. 2002-08-23 18:19:30 +00:00
Michael W. Hudson dd32a91cc0 This is my patch
[ 587993 ] SET_LINENO killer

Remove SET_LINENO.  Tracing is now supported by inspecting co_lnotab.

Many sundry changes to document and adapt to this change.
2002-08-15 14:59:02 +00:00
Guido van Rossum fea59e7f76 The opcode FOR_LOOP no longer exists. 2002-06-13 17:59:51 +00:00
Guido van Rossum 9f709bf9a1 The opcode YIELD_STMT was accidentally called YIELD_VALUE here. 2002-06-11 21:17:35 +00:00
Raymond Hettinger 0f4940c0a8 Replaced boolean test with 'is None' 2002-06-01 00:57:55 +00:00
Neal Norwitz aa38aa5435 SF #515009, delete global variable that was apparently used only
in a for loop.
2002-02-11 18:14:22 +00:00
Jeremy Hylton 96d68d57be Add opcodes for floor division and true division (PEP 238) 2001-08-29 18:02:21 +00:00
Jeremy Hylton 318e167e98 FOR_ITER is a jrel_op() not a plain old def_op() 2001-08-28 15:32:48 +00:00
Tim Peters 5ca576ed0a Merging the gen-branch into the main line, at Guido's direction. Yay!
Bugfix candidate in inspect.py:  it was referencing "self" outside of
a method.
2001-06-18 22:08:13 +00:00
Guido van Rossum 59d1d2b434 Iterators phase 1. This comprises:
new slot tp_iter in type object, plus new flag Py_TPFLAGS_HAVE_ITER
new C API PyObject_GetIter(), calls tp_iter
new builtin iter(), with two forms: iter(obj), and iter(function, sentinel)
new internal object types iterobject and calliterobject
new exception StopIteration
new opcodes for "for" loops, GET_ITER and FOR_ITER (also supported by dis.py)
new magic number for .pyc files
new special method for instances: __iter__() returns an iterator
iteration over dictionaries: "for x in dict" iterates over the keys
iteration over files: "for x in file" iterates over lines

TODO:

documentation
test suite
decide whether to use a different way to spell iter(function, sentinal)
decide whether "for key in dict" is a good idea
use iterators in map/filter/reduce, min/max, and elsewhere (in/not in?)
speed tuning (make next() a slot tp_next???)
2001-04-20 19:13:02 +00:00
Eric S. Raymond 373c55e510 String method conversion. 2001-02-09 08:25:29 +00:00
Jeremy Hylton 3faa52ecc4 Allow 'continue' inside 'try' clause
SF patch 102989 by Thomas Wouters
2001-02-01 22:48:12 +00:00
Jeremy Hylton a39414b15c PEP 227 implementation
Track changes to new opcodes.  Add hasfree list that applies to all
ops that use the closure.
2001-01-25 20:08:47 +00:00
Skip Montanaro e99d5ea25b added __all__ lists to a number of Python modules
added test script and expected output file as well
this closes patch 103297.
__all__ attributes will be added to other modules without first submitting
a patch, just adding the necessary line to the test script to verify
more-or-less correct implementation.
2001-01-20 19:54:20 +00:00
Guido van Rossum fc53c13dd5 Checking in a slight variation of Barry's patch 103303. 2001-01-19 02:41:41 +00:00
Tim Peters 88869f9787 Whitespace normalization. 2001-01-14 23:36:06 +00:00
Thomas Wouters 6af3b37021 Add missing opcodes. Thanx to jeremy for reminding me ;) 2000-08-24 22:44:53 +00:00
Thomas Wouters 104a7bcc28 Support for augmented assignment in the UserList, UserDict, UserString and
rfc822 (Addresslist) modules. Also a preliminary testcase for augmented
assignment, which should actually be merged with the test_class testcase I
added last week.
2000-08-24 20:14:10 +00:00
Fred Drake ef8ace3a6f Charles G. Waldman <cgw@fnal.gov>:
Add the EXTENDED_ARG opcode to the virtual machine, allowing 32-bit
arguments to opcodes instead of being forced to stick to the 16-bit
limit.  This is especially useful for machine-generated code, which
can be too long for the SET_LINENO parameter to fit into 16 bits.

This closes the implementation portion of SourceForge patch #100893.
2000-08-24 00:32:09 +00:00
Barry Warsaw 203da6dfe4 Add the new PRINT_ITEM_TO and PRINT_NEWLINE_TO opcodes. 2000-08-21 17:18:40 +00:00
Thomas Wouters 5215225ea1 Apply SF patch #101135, adding 'import module as m' and 'from module import
name as n'. By doing some twists and turns, "as" is not a reserved word.

There is a slight change in semantics for 'from module import name' (it will
now honour the 'global' keyword) but only in cases that are explicitly
undocumented.
2000-08-17 22:55:00 +00:00
Thomas Wouters 0be5aab04d Merge UNPACK_LIST and UNPACK_TUPLE into a single UNPACK_SEQUENCE, since they
did the same anyway.

I'm not sure what to do with Tools/compiler/compiler/* -- that isn't part of
distutils, is it ? Should it try to be compatible with old bytecode version ?
2000-08-11 22:15:52 +00:00
Guido van Rossum d30dedca27 Michael Hudson: With the (cool!) new call syntax, the longest opcode
name is much longer, which fouls up dis's formatting slightly; this is
a "fix" for that.
2000-03-30 15:02:11 +00:00
Jeremy Hylton 7690151c7e slightly modified version of Greg Ewing's extended call syntax patch
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
2000-03-28 23:49:17 +00:00
Guido van Rossum 1fdae12c93 Added a simple test program to disassemble a file, invoked as __main__. 2000-02-04 17:47:55 +00:00
Guido van Rossum 1cc2b9de35 Clarify why we define disco. Suggested by Andrew Dalke. 1999-05-03 18:09:53 +00:00
Guido van Rossum 9d865e1a30 Get rid of some obsolete opcodes. 1998-07-07 14:58:39 +00:00
Guido van Rossum 421c224044 Added docstrings (contributed by Martin von Loewis). 1997-11-18 15:47:55 +00:00
Guido van Rossum d0f2372cb9 Modernized for 1.5 1997-05-09 03:21:44 +00:00
Guido van Rossum 18aef3c102 Support disassembly of a variety of objects through dis.dis(). 1997-03-14 04:15:43 +00:00
Guido van Rossum 00f86e6086 Of course, when the type of the argument to dis() is unsupported, it
should raise TypeError, not ValueError...
1997-01-17 20:08:18 +00:00
Guido van Rossum bd30795192 More user friedly interface:
dis() still disassembles the last frame of the lats stack trace.

dis(x) disassembles x, which may be a code object, function, or method.

disassemble(co, [lasti]) disassembles a code object; the lasti
argument is now optional.

disco(...) is an alias for disassemble(...), for backward compatibility.
1997-01-17 20:05:04 +00:00
Guido van Rossum d0bc9cb869 Merge several mods:
- add opcodes BINARY_LSHIFT ... BINARY_OR

- remove RESERVE_FAST

- Skip M's suggestion for displaying which comparison operator is meant
1997-01-16 18:52:24 +00:00
Guido van Rossum 934a4cea85 Show names of locals in disco (Ka-Ping Yee) 1996-09-12 17:39:36 +00:00
Guido van Rossum 151fcfd101 Zapped obsolete opcode LOAD_GLOBALS. 1996-09-10 18:26:36 +00:00
Guido van Rossum 56a733856e Added BUILD_SLICE opcode. 1996-07-30 16:26:07 +00:00