Incorrect code was generated for:
foo(a = i for i in range(10))
This should have generated a SyntaxError. Fix the Grammar so
it raises a SyntaxError and test it.
I'm uncertain whether this should be backported. It makes
something that was Syntactically valid invalid. However,
the code would either be completely broken or do the wrong thing.
This change implements a new bytecode compiler, based on a
transformation of the parse tree to an abstract syntax defined in
Parser/Python.asdl.
The compiler implementation is not complete, but it is in stable
enough shape to run the entire test suite excepting two disabled
tests.
- SF Bug #772896, unknown encoding results in MemoryError, which is not helpful
I will only backport the segfault fix. I'll let Anthony decide if he wants
the other changes backported. I will do the backport if asked.
Fix over-aggressive PyErr_Clear(). The same code fragment appears in
various guises in list.extend(), map(), filter(), zip(), and internally
in PySequence_Tuple().
- Handle both frozenset() and frozenset([]).
- Do not use singleton for frozenset subclasses.
- Finalize the singleton.
- Add test cases.
* Factor-out set_update_internal() from set_update(). Simplifies the
code for several internal callers.
* Factor constant expressions out of loop in set_merge_internal().
* Minor comment touch-ups.
[ 1180995 ] binary formats for marshalling floats
Adds 2 new type codes for marshal (binary floats and binary complexes), a
new marshal version (2), updates MAGIC and fiddles the de-serializing of
code objects to be less likely to clobber the real reason for failing if
it fails.
[ 1181301 ] make float packing copy bytes when they can
which hasn't been reviewed, despite numerous threats to check it in
anyway if noone reviews it. Please read the diff on the checkin list,
at least!
The basic idea is to examine the bytes of some 'probe values' to see if
the current platform is a IEEE 754-ish platform, and if so
_PyFloat_{Pack,Unpack}{4,8} just copy bytes around.
The rest is hair for testing, and tests.
A problem regarding importing symlinked modules was recently reported on the
Cygwin mailing list:
http://cygwin.com/ml/cygwin/2005-04/msg00257.html
The following test case demonstrates the problem:
$ ls -l
total 1
lrwxrwxrwx 1 jt None 6 Apr 23 13:32 bar.py -> foo.py
-rw-r--r-- 1 jt None 24 Apr 18 20:13 foo.py
$ python -c 'import bar'
Traceback (most recent call last):
File "<string>", line 1, in ?
ImportError: No module named bar
Since Cygwin's case_ok() uses a modified version of the Windows's version, the
symlinked bar module actually resolves to file foo.py instead of bar.py. This
obviously causes the matching code to fail (regardless of case).
The patch fixes this problem by making Cygwin use the Mac OS X case_ok()
instead of a modified Window's version.
If we exit via the break here, we need to set ff_last_lineno or
FUTURE_POSSIBLE() will remain true. The bug affected statements
containing a variety of expressions, but not all expressions. It has
been present since Python 2.2.
Improve signal handling, especially when using threads, by forcing an early
re-execution of PyEval_EvalFrame() "periodic" code when things_to_do is not
cleared by Py_MakePendingCalls().
M Misc/NEWS
M Python/ceval.c
PyGILState_Ensure(): The fix in 2.4a3 for bug 1010677 reintroduced thread
shutdown race bug 225673. Repaired by (once again) ensuring the GIL is
held whenever deleting a thread state.
Alas, there's no useful test case for this shy bug. Four years ago, only
Guido could provoke it, on his box, and today only Armin can provoke it
on his box. I've never been able to provoke it (but not for lack of
trying!).
This is a critical fix for 2.3.5 too, since the fix for 1010677 got
backported there already and so also reintroduced 225673. I don't intend to
backport this fix. For whoever (if anyone) does, there are other thread
fixes in 2.4 that need backporting too, and I bet they need to happen first
for this patch to apply cleanly.
(Contributed by Bob Ippolito.)
This patch trims down the Python core on Darwin by making it
independent of CoreFoundation and CoreServices. It does this by:
Changed linker flags in configure/configure.in
Removed the unused PyMac_GetAppletScriptFile
Moved the implementation of PyMac_StrError to the MacOS module
Moved the implementation of PyMac_GetFullPathname to the
Carbon.File module
* Use simpler, faster two pass algorithm for markblocks().
* Free the blocks variable if not NULL and exiting without change.
* Verify that the rest of the compiler has not set an exception.
* Make the test for tuple of constants less restrictive.
* Embellish the comment for chained conditional jumps.
Peepholer could be fooled into misidentifying a tuple_of_constants.
Added code to count consecutive occurrences of LOAD_CONST.
Use the count to weed out the misidentified cases.
Added a unittest.
thread's id can't get duplicated, because (of course!) the current thread
is still running. The code should work either way, but reverting the
gratuitous change should make backporting easier, and gets the bad
reasoning out of 2.35's new comments.
can fail, check its return value, and die if it does fail.
_PyGILState_Init(): Assert that the thread doesn't already have an
association for autoTLSkey. If it does, PyThread_set_key_value() will
ignore the attempt to (re)set the association, which the code clearly
doesn't want.
code.
PyThread_set_key_value(): It's clear that this code assumes the passed-in
value isn't NULL, so document that it must not be, and assert that it
isn't. It remains unclear whether existing callers want the odd semantics
actually implemented by this function.
Neal Norwitz
Jeremy Hylton
Michael W. Hudson
Raymond Hettinger
Armin Rigo
Georg Brandl
Guido van Rossum
Martin v. Löwis
Barry Warsaw
Tim Peters
Phillip J. Eby
Brett Cannon
Jason Tishler
Hye-Shik Chang
Anthony Baxter
Andrew MacIntyre
Fred Drake
Skip Montanaro
Kurt B. Kaiser