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Author SHA1 Message Date
Serhiy Storchaka 67796521dd Issue #28969: Fixed race condition in C implementation of functools.lru_cache. 
KeyError could be raised when cached function with full cache was
simultaneously called from differen threads with the same uncached arguments.
 2017-01-12 18:34:33 +02:00
Victor Stinner b915bc354e Disable _PyStack_AsTuple() inlining 
Issue #29234: Inlining _PyStack_AsTuple() into callers increases their stack
consumption, Disable inlining to optimize the stack consumption.

Add _Py_NO_INLINE: use __attribute__((noinline)) of GCC and Clang.

It reduces the stack consumption, bytes per call, before => after:

test_python_call: 1040 => 976 (-64 B)
test_python_getitem: 976 => 912 (-64 B)
test_python_iterator: 1120 => 1056 (-64 B)

=> total: 3136 => 2944 (- 192 B)
 2017-01-11 01:07:03 +01:00
Victor Stinner 434723f94c call_method() now uses _PyObject_FastCall() 
Issue #29233: Replace the inefficient _PyObject_VaCallFunctionObjArgs() with
_PyObject_FastCall() in call_method() and call_maybe().

Only a few functions call call_method() and call it with a fixed number of
arguments. Avoid the complex and expensive _PyObject_VaCallFunctionObjArgs()
function, replace it with an array allocated on the stack with the exact number
of argumlents.

It reduces the stack consumption, bytes per call, before => after:

test_python_call: 1168 => 1152 (-16 B)
test_python_getitem: 1344 => 1008 (-336 B)
test_python_iterator: 1568 => 1232 (-336 B)

Remove the _PyObject_VaCallFunctionObjArgs() function which became useless.
Rename it to object_vacall() and make it private.
 2017-01-11 00:07:40 +01:00
Xiang Zhang 7a4da324dc Issue #29145: Merge 3.6. 2017-01-10 10:56:38 +08:00
Xiang Zhang 95403d74d7 Issue #29145: Merge 3.5. 2017-01-10 10:54:19 +08:00
Xiang Zhang b0541f4cdf Issue #29145: Fix overflow checks in str.replace() and str.join(). 
Based on patch by Martin Panter.
 2017-01-10 10:52:00 +08:00
INADA Naoki 7ed28a8914 Merge 3.6 2017-01-06 17:44:43 +09:00
INADA Naoki a634e23209 Issue #29159: Fix regression in bytes(x) when x.__index__() raises Exception. 2017-01-06 17:32:01 +09:00
Victor Stinner 6f7c0ae46d Issue #28839: Optimize function_call() 
function_call() now simply calls _PyFunction_FastCallDict().

_PyFunction_FastCallDict() is more efficient: it contains fast paths for the
common case (optimized code object and no keyword argument).
 2017-01-03 01:58:17 +01:00
Stefan Krah 089a062da4 Merge 3.6. 2016-12-30 12:24:59 +01:00
Stefan Krah a50006c977 Merge 3.5. 2016-12-30 12:24:23 +01:00
Stefan Krah 195319e6bb Issue #29111: Fix memoryview signature. 2016-12-30 12:23:35 +01:00
Serhiy Storchaka c9ad8b7a23 Issue #29073: bytearray formatting no longer truncates on first null byte. 2016-12-28 09:54:22 +02:00
Antoine Pitrou c06ae208eb Issue #28427: old keys should not remove new values from 
WeakValueDictionary when collecting from another thread.
 2016-12-27 14:34:54 +01:00
Antoine Pitrou d741ed492f Issue #28427: old keys should not remove new values from 
WeakValueDictionary when collecting from another thread.
 2016-12-27 14:23:43 +01:00
Antoine Pitrou e10ca3a0fe Issue #28427: old keys should not remove new values from 
WeakValueDictionary when collecting from another thread.
 2016-12-27 14:19:20 +01:00
INADA Naoki 5a625d0aa6 Issue #29049: Call _PyObject_GC_TRACK() lazily when calling Python function. 
Calling function is up to 5% faster.
 2016-12-24 20:19:08 +09:00
Xiang Zhang 62497d52d9 Issue #29044: Merge 3.6. 2016-12-22 15:31:55 +08:00
Xiang Zhang 437a5d2c25 Issue #29044: Merge 3.5. 2016-12-22 15:31:22 +08:00
Xiang Zhang ea1cf87030 Issue #29044: Fix a use-after-free in string '%c' formatter. 2016-12-22 15:30:47 +08:00
Xiang Zhang b211068f5c Issue #28822: Adjust indices handling of PyUnicode_FindChar(). 2016-12-20 22:52:33 +08:00
INADA Naoki 6165d55f13 Issue #28147: Fix a memory leak in split-table dictionaries 
setattr() must not convert combined table into split table.
 2016-12-20 09:54:24 +09:00
Serhiy Storchaka dd1da7f74a Issue #28927: bytes.fromhex() and bytearray.fromhex() now ignore all ASCII 
whitespace, not only spaces.  Patch by Robert Xiao.
 2016-12-19 18:51:37 +02:00
Serhiy Storchaka 9d16b616d5 Issue #29000: Fixed bytes formatting of octals with zero padding in alternate 
form.
 2016-12-17 22:15:10 +02:00
Serhiy Storchaka 025f8953f1 Issue #29000: Fixed bytes formatting of octals with zero padding in alternate 
form.
 2016-12-17 22:13:05 +02:00
Serhiy Storchaka b1a1619bf0 Issue #29000: Fixed bytes formatting of octals with zero padding in alternate 
form.
 2016-12-17 21:48:03 +02:00
Serhiy Storchaka 5bb8b9134b Issue #18896: Python function can now have more than 255 parameters. 
collections.namedtuple() now supports tuples with more than 255 elements.
 2016-12-16 19:19:02 +02:00
Serhiy Storchaka 5ab81d787f Issue #28959: Added private macro PyDict_GET_SIZE for retrieving the size of dict. 2016-12-16 16:18:57 +02:00
Xavier de Gaye 31eaf49ed9 Merge 3.6. 2016-12-15 21:01:52 +01:00
Xavier de Gaye 76febd0792 Issue #26919: On Android, operating system data is now always encoded/decoded 
to/from UTF-8, instead of the locale encoding to avoid inconsistencies with
os.fsencode() and os.fsdecode() which are already using UTF-8.
 2016-12-15 20:59:58 +01:00
Victor Stinner 5cc70c9935 Merge 3.6 2016-12-15 17:23:24 +01:00
Victor Stinner 3d3f264849 Fix a memory leak in split-table dictionaries 
Issue #28147: Fix a memory leak in split-table dictionaries: setattr() must not
convert combined table into split table.

Patch written by INADA Naoki.
 2016-12-15 17:21:23 +01:00
Victor Stinner 944dbc6431 Use _PyDict_NewPresized() in _PyStack_AsDict() 
Issue #27810.
 2016-12-15 16:59:40 +01:00
Victor Stinner bc08ab4598 Add _PY_FASTCALL_SMALL_STACK constant 
Issue #28870: Add a new _PY_FASTCALL_SMALL_STACK constant, size of "small
stacks" allocated on the C stack to pass positional arguments to
_PyObject_FastCall().

_PyObject_Call_Prepend() now uses a small stack of 5 arguments (40 bytes)
instead of 8 (64 bytes), since it is modified to use _PY_FASTCALL_SMALL_STACK.
 2016-12-15 12:40:53 +01:00
Victor Stinner d1e35dd9ee Fix _PyObject_CallFunctionVa(), use the small stack 
Issue #28915. Oops, I disabled the small stack to test both code paths. It's
now fixed.
 2016-12-15 12:36:50 +01:00
Serhiy Storchaka bdfc5ff17e Merge from 3.6. 2016-12-14 19:56:53 +02:00
Serhiy Storchaka 386072ebe0 Merge from 3.6. 2016-12-14 19:54:38 +02:00
Serhiy Storchaka 49010ee323 Revert changeset 1f31bf3f76f5 (issue5322) except tests. 2016-12-14 19:52:17 +02:00
Yury Selivanov f2392133eb Issue #26110: Add LOAD_METHOD/CALL_METHOD opcodes. 
Special thanks to INADA Naoki for pushing the patch through
the last mile, Serhiy Storchaka for reviewing the code, and to
Victor Stinner for suggesting the idea (originally implemented
in the PyPy project).
 2016-12-13 19:03:51 -05:00
Martin Panter 9bcaa37e1c Issue #28820: Merge typo fixes from 3.6 2016-12-10 05:39:12 +00:00
Martin Panter 186b204997 Fix typos in comment and documentation 2016-12-10 05:32:55 +00:00
Victor Stinner 59a73276e9 Backed out changeset 99c34e47348b 
The change broke test_gdb.
 2016-12-09 18:51:13 +01:00
Victor Stinner 0ca246c5e7 Inline PyEval_EvalFrameEx() in callers 
The PEP 523 modified PyEval_EvalFrameEx(): it's now an indirection to
interp->eval_frame().

Inline the call in performance critical code. Leave PyEval_EvalFrame()
unchanged, this function is only kept for backward compatibility.
 2016-12-09 17:12:17 +01:00
Victor Stinner 14e6d09547 Remove useless variable initialization 
Don't initialize variables which are not used before they are assigned.
 2016-12-09 17:08:59 +01:00
Victor Stinner 5abaa2b139 Use PyObject_CallFunctionObjArgs() 
Issue #28915: Replace PyObject_CallFunction() with
PyObject_CallFunctionObjArgs() when the format string was only made of "O"
formats, PyObject* arguments.

PyObject_CallFunctionObjArgs() avoids the creation of a temporary tuple and
doesn't have to parse a format string.
 2016-12-09 16:22:32 +01:00
Victor Stinner 887b4307b6 Use _PyObject_FastCallVa() in type slots 
Issue #28915: Replace Py_VaBuildValue()+PyObject_Call() with
_PyObject_FastCallVa() to avoid the creation of temporary tuple.
 2016-12-09 00:41:46 +01:00
Victor Stinner 7f39c0ccfc Add _PyObject_VaCallFunctionObjArgs() private function 
Issue #28915: Similar to _PyObject_CallFunctionObjArgs() but use va_list to
pass arguments.
 2016-12-09 00:40:33 +01:00
Victor Stinner 7e42541d08 Use _PyObject_CallMethodIdObjArgs() 
Issue #28915: Replace _PyObject_CallMethodId() with
_PyObject_CallMethodIdObjArgs() when the format string only use the format 'O'
for objects, like "(O)".

_PyObject_CallMethodIdObjArgs() avoids the code to parse a format string and
avoids the creation of a temporary tuple.
 2016-12-09 00:36:19 +01:00
Victor Stinner ef7def94c7 _PyObject_CallFunctionVa() uses fast call 
Issue #28915: Use _Py_VaBuildStack() to build a C array of PyObject* and then
use _PyObject_FastCall().

The function has a special case if the stack only contains one parameter and
the parameter is a tuple: "unpack" the tuple of arguments in this case.
 2016-12-09 00:31:47 +01:00
Victor Stinner e83aab12b0 Add _PyObject_CallFunctionVa() helper 
Issue #28915: Add _PyObject_CallFunctionVa() helper to factorize code of
functions:

* PyObject_CallFunction()
* _PyObject_CallFunction_SizeT()
* callmethod()
 2016-12-09 00:22:56 +01:00
Victor Stinner 3bb711998d Add _PyObject_FastCallVa() helper 
Issue #28915: Add _PyObject_FastCallVa() helper to factorize code of functions:

* PyObject_CallFunctionObjArgs()
* PyObject_CallMethodObjArgs()
* _PyObject_CallMethodIdObjArgs()

Inline objargs_mkstack() into _PyObject_FastCallVa(), remove
objargs_mkstack().
 2016-12-09 00:21:55 +01:00
INADA Naoki ba6097734d Issue #28818: Simplify lookdict functions 2016-12-07 20:41:42 +09:00
Serhiy Storchaka 1b58d8aafa Issue #5322: Fixed setting __new__ to a PyCFunction inside Python code. 
Original patch by Andreas Stührk.
 2016-12-07 11:27:55 +02:00
Serhiy Storchaka 0c78634d78 Issue #5322: Fixed setting __new__ to a PyCFunction inside Python code. 
Original patch by Andreas Stührk.
 2016-12-07 11:26:49 +02:00
Victor Stinner f2d568ff95 _PyObject_FastCallKeywords() now calls directly tp_call 
_PyObject_FastCallKeywords() doesn't call _PyObject_FastCallDict() anymore:
call directly tp_call.
 2016-12-07 00:37:38 +01:00
Victor Stinner 2f35ca3e84 Fix typo in a comment of abstract.c 2016-12-06 18:49:15 +01:00
Victor Stinner f17c3de263 Use _PyObject_CallNoArg() 
Replace:
    PyObject_CallFunctionObjArgs(callable, NULL)
with:
    _PyObject_CallNoArg(callable)
 2016-12-06 18:46:19 +01:00
Victor Stinner a5ed5f000a Use _PyObject_CallNoArg() 
Replace:
    PyObject_CallObject(callable, NULL)
with:
    _PyObject_CallNoArg(callable)
 2016-12-06 18:45:50 +01:00
Victor Stinner 2d0eb65f45 Uniformize argument names of "call" functions 
Issue #28838: Rename parameters of the "calls" functions of the Python C API.

* Rename 'callable_object' and 'func' to 'callable': any Python callable object
  is accepted, not only Python functions
* Rename 'method' and 'nameid' to 'name' (method name)
* Rename 'o' to 'obj'
* Move, fix and update documentation of PyObject_CallXXX() functions
  in abstract.h
* Update also the documentaton of the C API (update parameter names)
 2016-12-06 16:27:24 +01:00
Serhiy Storchaka fb3134f4d4 Issue #28808: PyUnicode_CompareWithASCIIString() now never raises exceptions. 2016-12-06 00:20:26 +02:00
Serhiy Storchaka 9a953dbb34 Issue #28808: PyUnicode_CompareWithASCIIString() now never raises exceptions. 2016-12-06 00:17:45 +02:00
Serhiy Storchaka 419967b832 Issue #28808: PyUnicode_CompareWithASCIIString() now never raises exceptions. 2016-12-06 00:13:34 +02:00
Victor Stinner 9083eb6aac Use directly _PyObject_GenericSetAttrWithDict() 
Modify type_setattro() to call directly _PyObject_GenericSetAttrWithDict()
instead of PyObject_GenericSetAttr().

PyObject_GenericSetAttr() is a thin wrapper to
_PyObject_GenericSetAttrWithDict().
 2016-12-05 18:23:27 +01:00
Victor Stinner 7bfb42d5b7 Issue #28858: Remove _PyObject_CallArg1() macro 
Replace
   _PyObject_CallArg1(func, arg)
with
   PyObject_CallFunctionObjArgs(func, arg, NULL)

Using the _PyObject_CallArg1() macro increases the usage of the C stack, which
was unexpected and unwanted. PyObject_CallFunctionObjArgs() doesn't have this
issue.
 2016-12-05 17:04:32 +01:00
Nick Coghlan d77e5b7211 Merge #23722 from 3.6 2016-12-05 16:59:22 +10:00
Nick Coghlan 19d246745d Issue #23722: improve __classcell__ compatibility 
Handling zero-argument super() in __init_subclass__ and
__set_name__ involved moving __class__ initialisation to
type.__new__. This requires cooperation from custom
metaclasses to ensure that the new __classcell__ entry
is passed along appropriately.

The initial implementation of that change resulted in abruptly
broken zero-argument super() support in metaclasses that didn't
adhere to the new requirements (such as Django's metaclass for
Model definitions).

The updated approach adopted here instead emits a deprecation
warning for those cases, and makes them work the same way they
did in Python 3.5.

This patch also improves the related class machinery documentation
to cover these details and to include more reader-friendly
cross-references and index entries.
 2016-12-05 16:47:55 +10:00
Victor Stinner de4ae3d486 Backed out changeset b9c9691c72c5 
Issue #28858: The change b9c9691c72c5 introduced a regression. It seems like
_PyObject_CallArg1() uses more stack memory than
PyObject_CallFunctionObjArgs().
 2016-12-04 22:59:09 +01:00
Serhiy Storchaka 5adfac2c1b Issue #5322: Fixed setting __new__ to a PyCFunction inside Python code. 
Original patch by Andreas Stührk.
 2016-12-02 08:42:43 +02:00
Victor Stinner 4778eab1f2 Replace PyObject_CallFunction() with fastcall 
Replace
    PyObject_CallFunction(func, "O", arg)
and
    PyObject_CallFunction(func, "O", arg, NULL)
with
    _PyObject_CallArg1(func, arg)

Replace
    PyObject_CallFunction(func, NULL)
with
    _PyObject_CallNoArg(func)

_PyObject_CallNoArg() and _PyObject_CallArg1() are simpler and don't allocate
memory on the C stack.
 2016-12-01 14:51:04 +01:00
Victor Stinner 27580c1fb5 Replace PyObject_CallFunctionObjArgs() with fastcall 
* PyObject_CallFunctionObjArgs(func, NULL) => _PyObject_CallNoArg(func)
* PyObject_CallFunctionObjArgs(func, arg, NULL) => _PyObject_CallArg1(func, arg)

PyObject_CallFunctionObjArgs() allocates 40 bytes on the C stack and requires
extra work to "parse" C arguments to build a C array of PyObject*.

_PyObject_CallNoArg() and _PyObject_CallArg1() are simpler and don't allocate
memory on the C stack.

This change is part of the fastcall project. The change on listsort() is
related to the issue #23507.
 2016-12-01 14:43:22 +01:00
Victor Stinner 8be1c39eb3 Backed out changeset 7efddbf1aa70 2016-11-30 12:10:54 +01:00
Victor Stinner ebea9988e0 Uniformize argument names of "call" functions 
* Callable object: callable, o, callable_object => func
* Object for method calls: o => obj
* Method name: name or nameid => method

Cleanup also the C code:

* Don't initialize variables to NULL if they are not used before their first
  assignement
* Add braces for readability
 2016-11-29 18:47:56 +01:00
Serhiy Storchaka baa7223bcd Issue #28797: Modifying the class __dict__ inside the __set_name__ method of 
a descriptor that is used inside that class no longer prevents calling the
 __set_name__ method of other descriptors.
 2016-11-29 09:56:07 +02:00
Serhiy Storchaka 9ec07721f4 Issue #28797: Modifying the class __dict__ inside the __set_name__ method of 
a descriptor that is used inside that class no longer prevents calling the
 __set_name__ method of other descriptors.
 2016-11-29 09:54:17 +02:00
Victor Stinner ed6de7345e Merge 3.6 2016-11-24 22:33:49 +01:00
Victor Stinner f7d199ff32 Fix _PyGen_yf() 
Issue #28782: Fix a bug in the implementation ``yield from`` when checking
if the next instruction is YIELD_FROM. Regression introduced by WORDCODE
(issue #26647).

Reviewed by Serhiy Storchaka and Yury Selivanov.
 2016-11-24 22:33:01 +01:00
Serhiy Storchaka 99250d5c63 Issue #28774: Simplified encoding a str result of an error handler in ASCII 
and Latin1 encoders.
 2016-11-23 15:13:00 +02:00
Xiang Zhang d04d8474df Issue #28774: Fix start/end pos in unicode_encode_ucs1(). 
Fix error position of the unicode error in ASCII and Latin1
encoders when a string returned by the error handler contains multiple
non-encodable characters (non-ASCII for the ASCII codec, characters out
of the U+0000-U+00FF range for Latin1).
 2016-11-23 19:34:01 +08:00
INADA Naoki 2c5a830f2a Issue #28731: Optimize _PyDict_NewPresized() to create correct size dict. 
Improve speed of dict literal with constant keys up to 30%.
 2016-12-07 18:34:44 +09:00
Serhiy Storchaka 007d7ff73f Issue #28761: The fields name and doc of structures PyMemberDef, PyGetSetDef, 
PyStructSequence_Field, PyStructSequence_Desc, and wrapperbase are now of
type "const char *" rather of "char *".
 2016-11-22 07:58:08 +02:00
INADA Naoki 92c50eee52 Issue #28731: Optimize _PyDict_NewPresized() to create correct size dict 
Improve speed of dict literal with constant keys up to 30%.
 2016-11-22 00:57:02 +09:00
Serhiy Storchaka 50911476f5 Issue #28760: Clean up and fix comments in PyUnicode_AsUnicodeEscapeString(). 
Patch by Xiang Zhang.
 2016-11-21 11:47:16 +02:00
Serhiy Storchaka ac0720eaa4 Issue #28760: Clean up and fix comments in PyUnicode_AsUnicodeEscapeString(). 
Patch by Xiang Zhang.
 2016-11-21 11:46:51 +02:00
Serhiy Storchaka b57d9eac41 Issue #28748: Private variable _Py_PackageContext is now of type "const char *" 
rather of "char *".
 2016-11-21 10:25:54 +02:00
Serhiy Storchaka 460bd0d284 Issue #19569: Compiler warnings are now emitted if use most of deprecated 
functions.
 2016-11-20 12:16:46 +02:00
Serhiy Storchaka 85b0f5beb1 Added the const qualifier to char* variables that refer to readonly internal 
UTF-8 represenatation of Unicode objects.
 2016-11-20 10:16:47 +02:00
Serhiy Storchaka a98c4a984b Replaced outdated macros _PyUnicode_AsString and _PyUnicode_AsStringAndSize 
with PyUnicode_AsUTF8 and PyUnicode_AsUTF8AndSize.
 2016-11-20 09:13:40 +02:00
Serhiy Storchaka 06515833fe Replaced outdated macros _PyUnicode_AsString and _PyUnicode_AsStringAndSize 
with PyUnicode_AsUTF8 and PyUnicode_AsUTF8AndSize.
 2016-11-20 09:13:07 +02:00
Yury Selivanov bb2356500c Merge 3.6 (issue #28721) 2016-11-16 18:16:32 -05:00
Yury Selivanov 41782e4970 Issue #28721: Fix asynchronous generators aclose() and athrow() 2016-11-16 18:16:17 -05:00
Serhiy Storchaka 27b74244fb Issue #28701: _PyUnicode_EqualToASCIIId and _PyUnicode_EqualToASCIIString now 
require ASCII right argument and assert this condition in debug build.
 2016-11-16 20:03:03 +02:00
Serhiy Storchaka a83a6a3275 Issue #28701: _PyUnicode_EqualToASCIIId and _PyUnicode_EqualToASCIIString now 
require ASCII right argument and assert this condition in debug build.
 2016-11-16 20:02:44 +02:00
Serhiy Storchaka e6d6131f78 Fixed an off-by-one error in _PyUnicode_EqualToASCIIString (issue #28701). 2016-11-16 16:13:13 +02:00
Serhiy Storchaka df66b9c425 Fixed an off-by-one error in _PyUnicode_EqualToASCIIString (issue #28701). 2016-11-16 16:12:56 +02:00
Serhiy Storchaka 292dd1b2ad Fixed an off-by-one error in _PyUnicode_EqualToASCIIString (issue #28701). 2016-11-16 16:12:34 +02:00
Serhiy Storchaka 503db266a5 Issue #21449: Removed private function _PyUnicode_CompareWithId. 2016-11-16 15:56:50 +02:00
Serhiy Storchaka dddec81b2d Issue #21449: Removed private function _PyUnicode_CompareWithId. 2016-11-16 15:56:27 +02:00
Serhiy Storchaka 29a5447360 Issue #28701: Replace _PyUnicode_CompareWithId with _PyUnicode_EqualToASCIIId. 
The latter function is more readable, faster and doesn't raise exceptions.

Based on patch by Xiang Zhang.
 2016-11-16 15:41:31 +02:00
Serhiy Storchaka fab6acd9f5 Issue #28701: Replace _PyUnicode_CompareWithId with _PyUnicode_EqualToASCIIId. 
The latter function is more readable, faster and doesn't raise exceptions.

Based on patch by Xiang Zhang.
 2016-11-16 15:41:11 +02:00
Serhiy Storchaka f5894dd646 Issue #28701: Replace _PyUnicode_CompareWithId with _PyUnicode_EqualToASCIIId. 
The latter function is more readable, faster and doesn't raise exceptions.

Based on patch by Xiang Zhang.
 2016-11-16 15:40:39 +02:00
Serhiy Storchaka 1a73bf365e Issue #28701: Replace PyUnicode_CompareWithASCIIString with _PyUnicode_EqualToASCIIString. 
The latter function is more readable, faster and doesn't raise exceptions.
 2016-11-16 10:19:57 +02:00
Serhiy Storchaka 3b73ea1278 Issue #28701: Replace PyUnicode_CompareWithASCIIString with _PyUnicode_EqualToASCIIString. 
The latter function is more readable, faster and doesn't raise exceptions.
 2016-11-16 10:19:20 +02:00
Serhiy Storchaka f4934ea77d Issue #28701: Replace PyUnicode_CompareWithASCIIString with _PyUnicode_EqualToASCIIString. 
The latter function is more readable, faster and doesn't raise exceptions.
 2016-11-16 10:17:58 +02:00
Victor Stinner c7a8f67411 Issue #28618: Mark dict lookup functions as hot 
It's common to see these functions in the top 3 of "perf report".
 2016-11-15 15:13:40 +01:00
Serhiy Storchaka 616034eb73 Issue #28648: Fixed crash in Py_DecodeLocale() in debug build on Mac OS X 
when decode astral characters.
 2016-11-12 14:37:11 +02:00
Serhiy Storchaka babe4f8e5e Issue #28648: Fixed crash in Py_DecodeLocale() in debug build on Mac OS X 
when decode astral characters.
 2016-11-12 14:36:02 +02:00
Serhiy Storchaka 6b4b6e956e Issue #28648: Fixed crash in Py_DecodeLocale() in debug build on Mac OS X 
when decode astral characters.
 2016-11-12 14:35:46 +02:00
Serhiy Storchaka 84293aff9f Issue #28648: Fixed crash in Py_DecodeLocale() in debug build on Mac OS X 
when decode astral characters.
 2016-11-12 14:29:48 +02:00
Serhiy Storchaka b626643734 Issue #28648: Fixed crash in Py_DecodeLocale() in debug build on Mac OS X 
when decode astral characters.
 2016-11-12 14:28:06 +02:00
Victor Stinner c6944e7edc Issue #28618: Make hot functions using __attribute__((hot)) 
When Python is not compiled with PGO, the performance of Python on call_simple
and call_method microbenchmarks depend highly on the code placement. In the
worst case, the performance slowdown can be up to 70%.

The GCC __attribute__((hot)) attribute helps to keep hot code close to reduce
the risk of such major slowdown. This attribute is ignored when Python is
compiled with PGO.

The following functions are considered as hot according to statistics collected
by perf record/perf report:

* _PyEval_EvalFrameDefault()
* call_function()
* _PyFunction_FastCall()
* PyFrame_New()
* frame_dealloc()
* PyErr_Occurred()
 2016-11-11 02:13:35 +01:00
Victor Stinner 0cae609847 Use PyThreadState_GET() in performance critical code 
It seems like _PyThreadState_UncheckedGet() is not inlined as expected, even
when using gcc -O3.
 2016-11-11 01:43:56 +01:00
Yury Selivanov f787c90764 Merge 3.6 (issue #27942) 2016-11-09 09:43:37 -05:00
Yury Selivanov 6c10650617 Merge 3.5 (issue #27942) 2016-11-09 09:43:08 -05:00
Yury Selivanov d2fd3599ab ssue #27942: Fix memory leak in codeobject.c 2016-11-09 09:42:14 -05:00
Yury Selivanov 9a2ffbd47c Merge 3.6 (issue #28003) 2016-11-08 19:46:41 -05:00
Yury Selivanov 29310c47a7 Issue #28003: Make WrappedVal, ASend and AThrow GC types 2016-11-08 19:46:22 -05:00
Yury Selivanov ff0273fb20 Merge 3.6 2016-11-08 19:20:08 -05:00
Yury Selivanov 49ffdf6bb2 Merge 3.5 2016-11-08 19:19:52 -05:00
Yury Selivanov 33499b7eed genobject: Remove unnecessary tp_free slots from aiter_wrapper and coro_wrapper 2016-11-08 19:19:28 -05:00
Serhiy Storchaka b2e64f903d Issue #28621: Sped up converting int to float by reusing faster bits counting 
implementation.  Patch by Adrian Wielgosik.
 2016-11-08 20:34:22 +02:00
Steve Dower 257a4c1503 Closes #27781: Removes special cases for the experimental aspect of PEP 529 2016-11-06 19:35:24 -08:00
Steve Dower 78057b4159 Closes #27781: Removes special cases for the experimental aspect of PEP 529 2016-11-06 19:35:08 -08:00
Benjamin Peterson 6e9d6b9536 merge 3.6 2016-11-06 13:01:23 -08:00
Benjamin Peterson 3bd7900155 merge 3.5 2016-11-06 13:01:15 -08:00
Benjamin Peterson db87c99444 make sure dict view types are initialized 2016-11-06 13:01:07 -08:00
Serhiy Storchaka 85bcf37e15 Issue #23996: Added _PyGen_SetStopIterationValue for safe raising 
StopIteration with value. More safely handle non-normalized exceptions
in -_PyGen_FetchStopIterationValue.
 2016-11-06 18:47:35 +02:00
Serhiy Storchaka 60e49aa756 Issue #23996: Added _PyGen_SetStopIterationValue for safe raising 
StopIteration with value. More safely handle non-normalized exceptions
in -_PyGen_FetchStopIterationValue.
 2016-11-06 18:47:03 +02:00
Serhiy Storchaka 24411f8a8d Issue #23996: Added _PyGen_SetStopIterationValue for safe raising 
StopIteration with value. More safely handle non-normalized exceptions
in -_PyGen_FetchStopIterationValue.
 2016-11-06 18:44:42 +02:00
Serhiy Storchaka f0b311bd73 Issue #28123: _PyDict_GetItem_KnownHash() now can raise an exception as 
PyDict_GetItemWithError().  Patch by Xiang Zhang.
 2016-11-06 13:18:24 +02:00
INADA Naoki 93f26f794d Issue #28583: PyDict_SetDefault didn't combine split table when needed. 
Patch by Xiang Zhang.
 2016-11-02 18:45:16 +09:00
Eric V. Smith 5646648678 Issue 28128: Print out better error/warning messages for invalid string escapes. Backport to 3.6. 2016-10-31 14:46:26 -04:00
Serhiy Storchaka 7f0514ad54 Backed out changeset 6b88dfc7b25d 2016-10-31 20:14:05 +02:00
Serhiy Storchaka 7984bff52a Issue #28385: An error message when non-empty format spec is passed to 
object.__format__ now contains the name of actual type.
 2016-10-30 19:37:46 +02:00
Serhiy Storchaka d1af5effc2 Issue #28385: An error message when non-empty format spec is passed to 
object.__format__ now contains the name of actual type.
 2016-10-30 19:33:54 +02:00
Serhiy Storchaka 998c9cdd42 Issue #28561: Clean up UTF-8 encoder: remove dead code, update comments, etc. 
Patch by Xiang Zhang.
 2016-10-30 18:25:27 +02:00
Serhiy Storchaka b7d14a09c2 Merge from 3.5. 2016-10-30 17:25:45 +02:00
Serhiy Storchaka 0438683939 Backed out changeset 9f7505019767 (issue #27275). 2016-10-30 17:17:24 +02:00
Serhiy Storchaka e26e20db95 Issue #28199: Microoptimized dict resizing. Based on patch by Naoki Inada. 2016-10-29 10:50:00 +03:00
Serhiy Storchaka 04230c4087 Issue #28123: _PyDict_GetItem_KnownHash() now can raise an exception as 
PyDict_GetItemWithError().  Patch by Xiang Zhang.
 2016-11-06 13:19:38 +02:00
INADA Naoki ca2d8be4ba Issue #28580: Optimize iterating split table values. 
Patch by Xiang Zhang.
 2016-11-04 16:59:10 +09:00
INADA Naoki a3498c7569 Issue #28583: PyDict_SetDefault didn't combine split table when needed. 
Patch by Xiang Zhang.
 2016-11-02 18:47:24 +09:00
Serhiy Storchaka 5e325d9c41 Merge from 3.6. 2016-10-31 20:15:48 +02:00
Eric V. Smith 42454af094 Issue 28128: Print out better error/warning messages for invalid string escapes. 2016-10-31 09:22:08 -04:00
Serhiy Storchaka 79879e002f Issue #28385: An error message when non-empty format spec is passed to 
object.__format__ now contains the name of actual type.
 2016-10-30 19:38:05 +02:00
Serhiy Storchaka b982ae8317 Issue #28561: Clean up UTF-8 encoder: remove dead code, update comments, etc. 
Patch by Xiang Zhang.
 2016-10-30 18:25:46 +02:00
Serhiy Storchaka a182d7bc14 Merge from 3.6. 2016-10-30 17:27:40 +02:00
Serhiy Storchaka 041794908b Issue #28199: Microoptimized dict resizing. Based on patch by Naoki Inada. 2016-10-29 10:50:00 +03:00
Serhiy Storchaka d76d8bfee1 Issue #28199: Microoptimized dict resizing. Based on patch by Naoki Inada. 2016-10-29 10:49:43 +03:00
Yury Selivanov f0bbee6228 Merge 3.6 (issue #28544) 2016-10-28 19:01:46 -04:00
Yury Selivanov 684ef2c888 Issue #28544: Pass PyObject* to _PyDict_Pop, not PyDictObject* 2016-10-28 19:01:21 -04:00
Serhiy Storchaka 2edcd1cba4 Issue #28426: Deprecated undocumented functions PyUnicode_AsEncodedObject(), 
PyUnicode_AsDecodedObject(), PyUnicode_AsDecodedUnicode() and
PyUnicode_AsEncodedUnicode().
 2016-10-27 21:08:00 +03:00
Serhiy Storchaka 0093907f0e Issue #28426: Deprecated undocumented functions PyUnicode_AsEncodedObject(), 
PyUnicode_AsDecodedObject(), PyUnicode_AsDecodedUnicode() and
PyUnicode_AsEncodedUnicode().
 2016-10-27 21:05:49 +03:00
INADA Naoki b574e77122 Issue #28509: dict.update() no longer allocate unnecessary large memory 2016-10-27 19:30:10 +09:00
INADA Naoki b1152be2de Issue #28509: dict.update() no longer allocate unnecessary large memory 2016-10-27 19:26:50 +09:00
Serhiy Storchaka b3e5812300 Issue #27275: Fixed implementation of pop() and popitem() methods in 
subclasses of accelerated OrderedDict.
 2016-10-25 15:38:28 +03:00
Serhiy Storchaka 1faf9025b5 Issue #27275: Fixed implementation of pop() and popitem() methods in 
subclasses of accelerated OrderedDict.
 2016-10-25 15:36:56 +03:00
Serhiy Storchaka 4832580596 Issue #27275: Fixed implementation of pop() and popitem() methods in 
subclasses of accelerated OrderedDict.
 2016-10-25 15:33:23 +03:00
Serhiy Storchaka a4f8823063 Issue #28408: Fixed a leak and remove redundant code in _PyUnicodeWriter_Finish(). 
Patch by Xiang Zhang.
 2016-10-25 13:25:04 +03:00
Serhiy Storchaka c8bc3d1c07 Issue #28408: Fixed a leak and remove redundant code in _PyUnicodeWriter_Finish(). 
Patch by Xiang Zhang.
 2016-10-25 13:23:56 +03:00
Serhiy Storchaka d7e5ff13bb Issue #28426: Fixed potential crash in PyUnicode_AsDecodedObject() in debug build. 2016-10-25 10:18:16 +03:00
Serhiy Storchaka c4a3e90aa8 Issue #28426: Fixed potential crash in PyUnicode_AsDecodedObject() in debug build. 2016-10-25 10:17:33 +03:00
Serhiy Storchaka 839023f12c Issue #28426: Fixed potential crash in PyUnicode_AsDecodedObject() in debug build. 2016-10-25 10:13:43 +03:00
Serhiy Storchaka 77eede35fc Issue #28426: Fixed potential crash in PyUnicode_AsDecodedObject() in debug build. 2016-10-25 10:07:51 +03:00
Serhiy Storchaka 2fbc019c8c Issue #28439: Remove redundant checks in PyUnicode_EncodeLocale and 
PyUnicode_DecodeLocaleAndSize.  Patch by Xiang Zhang.
 2016-10-23 15:41:36 +03:00
Serhiy Storchaka f8d7d41507 Issue #28511: Use the "U" format instead of "O!" in PyArg_Parse*. 2016-10-23 15:12:25 +03:00
Serhiy Storchaka 523c449ca0 Issue #28504: Cleanup unicode_decode_call_errorhandler_wchar/writer. 
Patch by Xiang Zhang.
 2016-10-22 23:18:31 +03:00
Raymond Hettinger b12785d456 Reference the original compact-and-ordered proposal 2016-10-22 09:58:14 -07:00
Serhiy Storchaka c4b4d4e2d8 Issue #28214: Improved exception reporting for problematic __set_name__ 
attributes.
 2016-10-21 17:15:20 +03:00
Serhiy Storchaka d5d32d2127 Issue #28214: Improved exception reporting for problematic __set_name__ 
attributes.
 2016-10-21 17:13:31 +03:00
Serhiy Storchaka 14ab277632 Issue #28410: Added _PyErr_FormatFromCause() -- the helper for raising 
new exception with setting current exception as __cause__.

_PyErr_FormatFromCause(exception, format, args...) is equivalent to Python

    raise exception(format % args) from sys.exc_info()[1]
 2016-10-21 17:10:42 +03:00
Serhiy Storchaka 467ab194fc Issue #28410: Added _PyErr_FormatFromCause() -- the helper for raising 
new exception with setting current exception as __cause__.

_PyErr_FormatFromCause(exception, format, args...) is equivalent to Python

    raise exception(format % args) from sys.exc_info()[1]
 2016-10-21 17:09:17 +03:00
Benjamin Peterson d6d49f16f4 merge 3.6 (#28454) 2016-10-16 15:42:33 -07:00
Benjamin Peterson 3aa75528a1 merge 3.5 (#28454) 2016-10-16 15:42:24 -07:00
Benjamin Peterson 8d761ff045 remove extra PyErr_Format arguments (closes #28454) 
Patch from Xiang Zhang.
 2016-10-16 15:41:46 -07:00
Christian Heimes e590a03db7 Check return value of _PyDict_SetItemId() 2016-10-13 21:10:42 +02:00
Christian Heimes 5cade88ac1 Check return value of _PyDict_SetItemId() 2016-10-13 21:10:31 +02:00
Victor Stinner 5a33759fba Merge 3.6 2016-10-12 13:59:13 +02:00
Victor Stinner ebe17e0347 Fix _Py_normalize_encoding() command 
It's not exactly the same than encodings.normalize_encoding(): the C function
also converts to lowercase.
 2016-10-12 13:57:45 +02:00
Benjamin Peterson 8a3748290a merge 3.6 (#28417) 2016-10-11 23:01:12 -07:00
Benjamin Peterson b329e1bb5b va_end vargs2 once (closes #28417) 2016-10-11 23:00:58 -07:00
doko@ubuntu.com de69ee71e2 - dictobject.c: Make dict_merge symbol a static symbol 2016-10-11 08:04:02 +02:00
doko@ubuntu.com c96df68ea3 - dictobject.c: Make dict_merge symbol a static symbol 2016-10-11 08:04:02 +02:00
Serhiy Storchaka 2e58f1a52a Issue #28400: Removed uncessary checks in unicode_char and resize_copy. 
1. In resize_copy we don't need to PyUnicode_READY(unicode) since when
it's not PyUnicode_WCHAR_KIND it should be ready.
2. In unicode_char, PyUnicode_1BYTE_KIND is handled by get_latin1_char.

Patch by Xiang Zhang.
 2016-10-09 23:44:48 +03:00
Serhiy Storchaka 1aa85a9eea Merge from 3.6. 2016-10-09 23:08:58 +03:00
Serhiy Storchaka 49f5cdde1a Issue #28183: Optimize and cleanup dict iteration. 2016-10-09 23:08:05 +03:00
Serhiy Storchaka 74a7e3b981 Merge from 3.6. 2016-10-08 22:48:07 +03:00
Serhiy Storchaka 21d9f10c94 Merge from 3.5. 2016-10-08 22:46:01 +03:00
Serhiy Storchaka 9c0e1f83af Issue #28379: Added sanity checks and tests for PyUnicode_CopyCharacters(). 
Patch by Xiang Zhang.
 2016-10-08 22:45:38 +03:00
Serhiy Storchaka df53392f0d Issue #28376: Creating instances of range_iterator by calling range_iterator 
type now is disallowed.  Calling iter() on range instance is the only way.
Patch by Oren Milman.
 2016-10-08 22:01:18 +03:00
Serhiy Storchaka aa078674e0 Merge with 3.6. 2016-10-08 21:52:41 +03:00
Serhiy Storchaka c7f490c8b1 Issue #28376: Creating instances of range_iterator by calling range_iterator 
type now is deprecated.  Patch by Oren Milman.
 2016-10-08 21:50:45 +03:00
Serhiy Storchaka 639098c591 Merge from 3.5. 2016-10-08 21:45:07 +03:00
Serhiy Storchaka 44759bcf13 Issue #28376: The constructor of range_iterator now checks that step is not 0. 
Patch by Oren Milman.
 2016-10-08 21:43:11 +03:00
Serhiy Storchaka a94ed55dbd Issue #26906: Resolving special methods of uninitialized type now causes 
implicit initialization of the type instead of a fail.
 2016-10-08 12:28:25 +03:00
Serhiy Storchaka 56588b7055 Issue #26906: Resolving special methods of uninitialized type now causes 
implicit initialization of the type instead of a fail.
 2016-10-08 12:26:25 +03:00
Serhiy Storchaka 8ef34600c7 Issue #26906: Resolving special methods of uninitialized type now causes 
implicit initialization of the type instead of a fail.
 2016-10-08 12:24:09 +03:00
Serhiy Storchaka 52597d91e2 Issue #18287: PyType_Ready() now checks that tp_name is not NULL. 
Original patch by Niklas Koep.
 2016-10-07 23:26:16 +03:00
Serhiy Storchaka e45b7c09ec Issue #18287: PyType_Ready() now checks that tp_name is not NULL. 
Original patch by Niklas Koep.
 2016-10-07 23:25:46 +03:00
Serhiy Storchaka de0574bdab Issue #18287: PyType_Ready() now checks that tp_name is not NULL. 
Original patch by Niklas Koep.
 2016-10-07 23:24:35 +03:00
INADA Naoki ecdd36ff88 Issue #28201: Dict reduces possibility of 2nd conflict in hash table. 
Do perturb shift after first conflict.
 2016-10-06 15:22:28 +09:00