- 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.
* get_instructions generator
* ability to redirect output to a file
* Bytecode and Instruction abstractions
Patch by Nick Coghlan, Ryan Kelly and Thomas Kluyver.
namespace if it occurs as a free variable in a nested block. This limitation
of the compiler has been lifted, and a new opcode introduced (DELETE_DEREF).
This sample was valid in 2.6, but fails to compile in 3.x without this change::
>>> def f():
... def print_error():
... print(e)
... try:
... something
... except Exception as e:
... print_error()
... # implicit "del e" here
This sample has always been invalid in Python, and now works::
>>> def outer(x):
... def inner():
... return x
... inner()
... del x
There is no need to bump the PYC magic number: the new opcode is used
for code that did not compile before.
reality it's simply an implementation detail for CPython. This point is now
clearly documented in both the docs for dis and the glossary.
Closes issue #7829. Thanks to Terry Reedy for some initial suggestions on
wording.
svn+ssh://pythondev@svn.python.org/python/trunk
........
r72912 | benjamin.peterson | 2009-05-25 08:13:44 -0500 (Mon, 25 May 2009) | 5 lines
add a SETUP_WITH opcode
It speeds up the with statement and correctly looks up the special
methods involved.
........
r72920 | benjamin.peterson | 2009-05-25 15:12:57 -0500 (Mon, 25 May 2009) | 1 line
take into account the fact that SETUP_WITH pushes a finally block
........
r72940 | benjamin.peterson | 2009-05-26 07:49:59 -0500 (Tue, 26 May 2009) | 1 line
teach the peepholer about SETUP_WITH
........
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
svn+ssh://pythondev@svn.python.org/python/trunk
........
r61239 | andrew.kuchling | 2008-03-05 01:44:41 +0100 (Wed, 05 Mar 2008) | 1 line
Add more items; add fragmentary notes
........
r61240 | amaury.forgeotdarc | 2008-03-05 02:50:33 +0100 (Wed, 05 Mar 2008) | 13 lines
Issue#2238: some syntax errors from *args or **kwargs expressions
would give bogus error messages, because of untested exceptions::
>>> f(**g(1=2))
XXX undetected error
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: 'int' object is not iterable
instead of the expected SyntaxError: keyword can't be an expression
Will backport.
........
r61241 | neal.norwitz | 2008-03-05 06:10:48 +0100 (Wed, 05 Mar 2008) | 3 lines
Remove the files/dirs after closing the DB so the tests work on Windows.
Patch from Trent Nelson. Also simplified removing a file by using test_support.
........
r61242 | neal.norwitz | 2008-03-05 06:14:18 +0100 (Wed, 05 Mar 2008) | 3 lines
Get this test to pass even when there is no sound card in the system.
Patch from Trent Nelson. (I can't test this.)
........
r61243 | neal.norwitz | 2008-03-05 06:20:44 +0100 (Wed, 05 Mar 2008) | 3 lines
Catch OSError when trying to remove a file in case removal fails. This
should prevent a failure in tearDown masking any real test failure.
........
r61244 | neal.norwitz | 2008-03-05 06:38:06 +0100 (Wed, 05 Mar 2008) | 5 lines
Make the timeout longer to give slow machines a chance to pass the test
before timing out. This doesn't change the duration of the test under
normal circumstances. This is targetted at fixing the spurious failures
on the FreeBSD buildbot primarily.
........
r61245 | neal.norwitz | 2008-03-05 06:49:03 +0100 (Wed, 05 Mar 2008) | 1 line
Tabs -> spaces
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r61246 | neal.norwitz | 2008-03-05 06:50:20 +0100 (Wed, 05 Mar 2008) | 1 line
Use -u urlfetch to run more tests
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r61247 | neal.norwitz | 2008-03-05 06:51:20 +0100 (Wed, 05 Mar 2008) | 1 line
test_smtplib sometimes reports leaks too, suppress it
........
r61248 | jeffrey.yasskin | 2008-03-05 07:19:56 +0100 (Wed, 05 Mar 2008) | 5 lines
Fix test_socketserver on Windows after r61099 added several signal.alarm()
calls (which don't exist on non-Unix platforms).
Thanks to Trent Nelson for the report and patch.
........
r61249 | georg.brandl | 2008-03-05 08:10:35 +0100 (Wed, 05 Mar 2008) | 2 lines
Fix some rst.
........
r61252 | thomas.heller | 2008-03-05 15:53:39 +0100 (Wed, 05 Mar 2008) | 2 lines
News entry for yesterdays commit.
........
r61253 | thomas.heller | 2008-03-05 16:34:29 +0100 (Wed, 05 Mar 2008) | 3 lines
Issue 1872: Changed the struct module typecode from 't' to '?', for
compatibility with PEP3118.
........
r61254 | skip.montanaro | 2008-03-05 17:41:09 +0100 (Wed, 05 Mar 2008) | 4 lines
Elaborate on the role of the altinstall target when installing multiple
versions.
........
r61255 | georg.brandl | 2008-03-05 20:31:44 +0100 (Wed, 05 Mar 2008) | 2 lines
#2239: PYTHONPATH delimiter is os.pathsep.
........
r61256 | raymond.hettinger | 2008-03-05 21:59:58 +0100 (Wed, 05 Mar 2008) | 1 line
C implementation of itertools.permutations().
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r61257 | raymond.hettinger | 2008-03-05 22:04:32 +0100 (Wed, 05 Mar 2008) | 1 line
Small code cleanup.
........
r61260 | martin.v.loewis | 2008-03-05 23:24:31 +0100 (Wed, 05 Mar 2008) | 2 lines
cd PCbuild only after deleting all pyc files.
........
r61261 | raymond.hettinger | 2008-03-06 02:15:52 +0100 (Thu, 06 Mar 2008) | 1 line
Add examples.
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r61262 | andrew.kuchling | 2008-03-06 02:36:27 +0100 (Thu, 06 Mar 2008) | 1 line
Add two items
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r61263 | georg.brandl | 2008-03-06 07:47:18 +0100 (Thu, 06 Mar 2008) | 2 lines
#1725737: ignore other VC directories other than CVS and SVN's too.
........
r61264 | martin.v.loewis | 2008-03-06 07:55:22 +0100 (Thu, 06 Mar 2008) | 4 lines
Patch #2232: os.tmpfile might fail on Windows if the user has no
permission to create files in the root directory.
Will backport to 2.5.
........
r61269 | georg.brandl | 2008-03-06 08:19:15 +0100 (Thu, 06 Mar 2008) | 2 lines
Expand on re.split behavior with captured expressions.
........
r61270 | georg.brandl | 2008-03-06 08:22:09 +0100 (Thu, 06 Mar 2008) | 2 lines
Little clarification of assignments.
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r61271 | georg.brandl | 2008-03-06 08:31:34 +0100 (Thu, 06 Mar 2008) | 2 lines
Add isinstance/issubclass to tutorial.
........
r61272 | georg.brandl | 2008-03-06 08:34:52 +0100 (Thu, 06 Mar 2008) | 2 lines
Add missing NEWS entry for r61263.
........
r61273 | georg.brandl | 2008-03-06 08:41:16 +0100 (Thu, 06 Mar 2008) | 2 lines
#2225: return nonzero status code from py_compile if not all files could be compiled.
........
r61274 | georg.brandl | 2008-03-06 08:43:02 +0100 (Thu, 06 Mar 2008) | 2 lines
#2220: handle matching failure more gracefully.
........
r61275 | georg.brandl | 2008-03-06 08:45:52 +0100 (Thu, 06 Mar 2008) | 2 lines
Bug #2220: handle rlcompleter attribute match failure more gracefully.
........
r61278 | martin.v.loewis | 2008-03-06 14:49:47 +0100 (Thu, 06 Mar 2008) | 1 line
Rely on x64 platform configuration when building _bsddb on AMD64.
........
r61279 | martin.v.loewis | 2008-03-06 14:50:28 +0100 (Thu, 06 Mar 2008) | 1 line
Update db-4.4.20 build procedure.
........
r61285 | raymond.hettinger | 2008-03-06 21:52:01 +0100 (Thu, 06 Mar 2008) | 1 line
More tests.
........
r61286 | raymond.hettinger | 2008-03-06 23:51:36 +0100 (Thu, 06 Mar 2008) | 1 line
Issue 2246: itertools grouper object did not participate in GC (should be backported).
........
r61288 | raymond.hettinger | 2008-03-07 02:33:20 +0100 (Fri, 07 Mar 2008) | 1 line
Tweak recipes and tests
........
r61289 | jeffrey.yasskin | 2008-03-07 07:22:15 +0100 (Fri, 07 Mar 2008) | 5 lines
Progress on issue #1193577 by adding a polling .shutdown() method to
SocketServers. The core of the patch was written by Pedro Werneck, but any bugs
are mine. I've also rearranged the code for timeouts in order to avoid
interfering with the shutdown poll.
........
r61290 | nick.coghlan | 2008-03-07 15:13:28 +0100 (Fri, 07 Mar 2008) | 1 line
Speed up with statements by storing the __exit__ method on the stack instead of in a temp variable (bumps the magic number for pyc files)
........
r61298 | andrew.kuchling | 2008-03-07 22:09:23 +0100 (Fri, 07 Mar 2008) | 1 line
Grammar fix
........
r61303 | georg.brandl | 2008-03-08 10:54:06 +0100 (Sat, 08 Mar 2008) | 2 lines
#2253: fix continue vs. finally docs.
........
r61304 | marc-andre.lemburg | 2008-03-08 11:01:43 +0100 (Sat, 08 Mar 2008) | 3 lines
Add new name for Mandrake: Mandriva.
........
r61305 | georg.brandl | 2008-03-08 11:05:24 +0100 (Sat, 08 Mar 2008) | 2 lines
#1533486: fix types in refcount intro.
........
r61312 | facundo.batista | 2008-03-08 17:50:27 +0100 (Sat, 08 Mar 2008) | 5 lines
Issue 1106316. post_mortem()'s parameter, traceback, is now
optional: it defaults to the traceback of the exception that is currently
being handled.
........
r61313 | jeffrey.yasskin | 2008-03-08 19:26:54 +0100 (Sat, 08 Mar 2008) | 2 lines
Add tests for with and finally performance to pybench.
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r61314 | jeffrey.yasskin | 2008-03-08 21:08:21 +0100 (Sat, 08 Mar 2008) | 2 lines
Fix pybench for pythons < 2.6, tested back to 2.3.
........
r61317 | jeffrey.yasskin | 2008-03-08 22:35:15 +0100 (Sat, 08 Mar 2008) | 3 lines
Well that was dumb. platform.python_implementation returns a function, not a
string.
........
r61329 | georg.brandl | 2008-03-09 16:11:39 +0100 (Sun, 09 Mar 2008) | 2 lines
#2249: document assertTrue and assertFalse.
........
r61332 | neal.norwitz | 2008-03-09 20:03:42 +0100 (Sun, 09 Mar 2008) | 4 lines
Introduce a lock to fix a race condition which caused an exception in the test.
Some buildbots were consistently failing (e.g., amd64).
Also remove a couple of semi-colons.
........
r61344 | raymond.hettinger | 2008-03-11 01:19:07 +0100 (Tue, 11 Mar 2008) | 1 line
Add recipe to docs.
........
r61350 | guido.van.rossum | 2008-03-11 22:18:06 +0100 (Tue, 11 Mar 2008) | 3 lines
Fix the overflows in expandtabs(). "This time for sure!"
(Exploit at request.)
........
r61351 | raymond.hettinger | 2008-03-11 22:37:46 +0100 (Tue, 11 Mar 2008) | 1 line
Improve docs for itemgetter(). Show that it works with slices.
........
r61363 | georg.brandl | 2008-03-13 08:15:56 +0100 (Thu, 13 Mar 2008) | 2 lines
#2265: fix example.
........
r61364 | georg.brandl | 2008-03-13 08:17:14 +0100 (Thu, 13 Mar 2008) | 2 lines
#2270: fix typo.
........
r61365 | georg.brandl | 2008-03-13 08:21:41 +0100 (Thu, 13 Mar 2008) | 2 lines
#1720705: add docs about import/threading interaction, wording by Nick.
........
r61366 | andrew.kuchling | 2008-03-13 12:07:35 +0100 (Thu, 13 Mar 2008) | 1 line
Add class decorators
........
r61367 | raymond.hettinger | 2008-03-13 17:43:17 +0100 (Thu, 13 Mar 2008) | 1 line
Add 2-to-3 support for the itertools moved to builtins or renamed.
........
r61368 | raymond.hettinger | 2008-03-13 17:43:59 +0100 (Thu, 13 Mar 2008) | 1 line
Consistent tense.
........
r61369 | raymond.hettinger | 2008-03-13 20:03:51 +0100 (Thu, 13 Mar 2008) | 1 line
Issue 2274: Add heapq.heappushpop().
........
r61370 | raymond.hettinger | 2008-03-13 20:33:34 +0100 (Thu, 13 Mar 2008) | 1 line
Simplify the nlargest() code using heappushpop().
........
r61371 | brett.cannon | 2008-03-13 21:27:00 +0100 (Thu, 13 Mar 2008) | 4 lines
Move test_thread over to unittest. Commits GHOP 237.
Thanks Benjamin Peterson for the patch.
........
r61372 | brett.cannon | 2008-03-13 21:33:10 +0100 (Thu, 13 Mar 2008) | 4 lines
Move test_tokenize to doctest.
Done as GHOP 238 by Josip Dzolonga.
........
r61373 | brett.cannon | 2008-03-13 21:47:41 +0100 (Thu, 13 Mar 2008) | 4 lines
Convert test_contains, test_crypt, and test_select to unittest.
Patch from GHOP 294 by David Marek.
........
r61374 | brett.cannon | 2008-03-13 22:02:16 +0100 (Thu, 13 Mar 2008) | 4 lines
Move test_gdbm to use unittest.
Closes issue #1960. Thanks Giampaolo Rodola.
........
r61375 | brett.cannon | 2008-03-13 22:09:28 +0100 (Thu, 13 Mar 2008) | 4 lines
Convert test_fcntl to unittest.
Closes issue #2055. Thanks Giampaolo Rodola.
........
r61376 | raymond.hettinger | 2008-03-14 06:03:44 +0100 (Fri, 14 Mar 2008) | 1 line
Leave heapreplace() unchanged.
........
r61378 | martin.v.loewis | 2008-03-14 14:56:09 +0100 (Fri, 14 Mar 2008) | 2 lines
Patch #2284: add -x64 option to rt.bat.
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r61379 | martin.v.loewis | 2008-03-14 14:57:59 +0100 (Fri, 14 Mar 2008) | 2 lines
Use -x64 flag.
........
r61382 | brett.cannon | 2008-03-14 15:03:10 +0100 (Fri, 14 Mar 2008) | 2 lines
Remove a bad test.
........
r61383 | mark.dickinson | 2008-03-14 15:23:37 +0100 (Fri, 14 Mar 2008) | 9 lines
Issue 705836: Fix struct.pack(">f", 1e40) to behave consistently
across platforms: it should now raise OverflowError on all
platforms. (Previously it raised OverflowError only on
non IEEE 754 platforms.)
Also fix the (already existing) test for this behaviour
so that it actually raises TestFailed instead of just
referencing it.
........
r61387 | thomas.heller | 2008-03-14 22:06:21 +0100 (Fri, 14 Mar 2008) | 1 line
Remove unneeded initializer.
........
r61388 | martin.v.loewis | 2008-03-14 22:19:28 +0100 (Fri, 14 Mar 2008) | 2 lines
Run debug version, cd to PCbuild.
........
r61392 | georg.brandl | 2008-03-15 00:10:34 +0100 (Sat, 15 Mar 2008) | 2 lines
Remove obsolete paragraph. #2288.
........
r61395 | georg.brandl | 2008-03-15 01:20:19 +0100 (Sat, 15 Mar 2008) | 2 lines
Fix lots of broken links in the docs, found by Sphinx' external link checker.
........
r61396 | skip.montanaro | 2008-03-15 03:32:49 +0100 (Sat, 15 Mar 2008) | 1 line
note that fork and forkpty raise OSError on failure
........
r61402 | skip.montanaro | 2008-03-15 17:04:45 +0100 (Sat, 15 Mar 2008) | 1 line
add %f format to datetime - issue 1158
........
r61403 | skip.montanaro | 2008-03-15 17:07:11 +0100 (Sat, 15 Mar 2008) | 2 lines
.
........
svn+ssh://pythondev@svn.python.org/python/trunk
........
r60980 | georg.brandl | 2008-02-23 16:02:28 +0100 (Sat, 23 Feb 2008) | 2 lines
#1492: allow overriding BaseHTTPServer's content type for error messages.
........
r60982 | georg.brandl | 2008-02-23 16:06:25 +0100 (Sat, 23 Feb 2008) | 2 lines
#2165: fix test_logging failure on some machines.
........
r60983 | facundo.batista | 2008-02-23 16:07:35 +0100 (Sat, 23 Feb 2008) | 6 lines
Issue 1089358. Adds the siginterrupt() function, that is just a
wrapper around the system call with the same name. Also added
test cases, doc changes and NEWS entry. Thanks Jason and Ralf
Schmitt.
........
r60984 | georg.brandl | 2008-02-23 16:11:18 +0100 (Sat, 23 Feb 2008) | 2 lines
#2067: file.__exit__() now calls subclasses' close() method.
........
r60985 | georg.brandl | 2008-02-23 16:19:54 +0100 (Sat, 23 Feb 2008) | 2 lines
More difflib examples. Written for GHOP by Josip Dzolonga.
........
r60987 | andrew.kuchling | 2008-02-23 16:41:51 +0100 (Sat, 23 Feb 2008) | 1 line
#2072: correct documentation for .rpc_paths
........
r60988 | georg.brandl | 2008-02-23 16:43:48 +0100 (Sat, 23 Feb 2008) | 2 lines
#2161: Fix opcode name.
........
r60989 | andrew.kuchling | 2008-02-23 16:49:35 +0100 (Sat, 23 Feb 2008) | 2 lines
#1119331: ncurses will just call exit() if the terminal name isn't found.
Call setupterm() first so that we get a Python exception instead of just existing.
........
svn+ssh://pythondev@svn.python.org/python/trunk
........
r59923 | raymond.hettinger | 2008-01-11 19:04:55 +0100 (Fri, 11 Jan 2008) | 1 line
Speed-up and simplify code urlparse's result objects.
........
r59924 | andrew.kuchling | 2008-01-11 20:33:24 +0100 (Fri, 11 Jan 2008) | 1 line
Bug #1790: update link; remove outdated paragraph
........
r59925 | thomas.heller | 2008-01-11 20:34:06 +0100 (Fri, 11 Jan 2008) | 5 lines
Raise an error instead of crashing with a segfault when a NULL
function pointer is called.
Will backport to release25-maint.
........
r59927 | thomas.heller | 2008-01-11 21:29:19 +0100 (Fri, 11 Jan 2008) | 4 lines
Fix a potential 'SystemError: NULL result without error'.
NULL may be a valid return value from PyLong_AsVoidPtr.
Will backport to release25-maint.
........
r59928 | raymond.hettinger | 2008-01-12 00:25:18 +0100 (Sat, 12 Jan 2008) | 1 line
Update the opcode docs for STORE_MAP and BUILD_MAP
........
r59929 | mark.dickinson | 2008-01-12 02:56:00 +0100 (Sat, 12 Jan 2008) | 4 lines
Issue 1780: Allow leading and trailing whitespace in Decimal constructor,
when constructing from a string. Disallow trailing newlines in
Context.create_decimal.
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r59930 | georg.brandl | 2008-01-12 11:53:29 +0100 (Sat, 12 Jan 2008) | 3 lines
Move OSError docs to exceptions doc, remove obsolete descriptions
from os docs, rework posix docs.
........
r59931 | georg.brandl | 2008-01-12 14:47:57 +0100 (Sat, 12 Jan 2008) | 3 lines
Patch #1700288: Method cache optimization, by Armin Rigo, ported to
2.6 by Kevin Jacobs.
........
r59932 | georg.brandl | 2008-01-12 17:11:09 +0100 (Sat, 12 Jan 2008) | 2 lines
Fix editing glitch.
........
R David Murray
Serhiy Storchaka
Larry Hastings
Nick Coghlan
Georg Brandl
Ezio Melotti
Benjamin Peterson
Andrew Svetlov
Eli Bendersky
Raymond Hettinger
Antoine Pitrou
Éric Araujo
Amaury Forgeot d'Arc
Brett Cannon
Jeffrey Yasskin
Christian Heimes