Commit Graph

707 Commits

Author SHA1 Message Date
Benjamin Peterson d5d77aac60 set items in dict displays from left to right (closes #24569) 2015-07-05 10:37:25 -05:00
Yury Selivanov f488fb422a Issue #19235: Add new RecursionError exception. Patch by Georg Brandl. 2015-07-03 01:04:23 -04:00
Yury Selivanov 5376ba9630 Issue #24400: Introduce a distinct type for 'async def' coroutines.
Summary of changes:

1. Coroutines now have a distinct, separate from generators
   type at the C level: PyGen_Type, and a new typedef PyCoroObject.
   PyCoroObject shares the initial segment of struct layout with
   PyGenObject, making it possible to reuse existing generators
   machinery.  The new type is exposed as 'types.CoroutineType'.

   As a consequence of having a new type, CO_GENERATOR flag is
   no longer applied to coroutines.

2. Having a separate type for coroutines made it possible to add
   an __await__ method to the type.  Although it is not used by the
   interpreter (see details on that below), it makes coroutines
   naturally (without using __instancecheck__) conform to
   collections.abc.Coroutine and collections.abc.Awaitable ABCs.

   [The __instancecheck__ is still used for generator-based
   coroutines, as we don't want to add __await__ for generators.]

3. Add new opcode: GET_YIELD_FROM_ITER.  The opcode is needed to
   allow passing native coroutines to the YIELD_FROM opcode.

   Before this change, 'yield from o' expression was compiled to:

      (o)
      GET_ITER
      LOAD_CONST
      YIELD_FROM

   Now, we use GET_YIELD_FROM_ITER instead of GET_ITER.

   The reason for adding a new opcode is that GET_ITER is used
   in some contexts (such as 'for .. in' loops) where passing
   a coroutine object is invalid.

4. Add two new introspection functions to the inspec module:
   getcoroutinestate(c) and getcoroutinelocals(c).

5. inspect.iscoroutine(o) is updated to test if 'o' is a native
   coroutine object.  Before this commit it used abc.Coroutine,
   and it was requested to update inspect.isgenerator(o) to use
   abc.Generator; it was decided, however, that inspect functions
   should really be tailored for checking for native types.

6. sys.set_coroutine_wrapper(w) API is updated to work with only
   native coroutines.  Since types.coroutine decorator supports
   any type of callables now, it would be confusing that it does
   not work for all types of coroutines.

7. Exceptions logic in generators C implementation was updated
   to raise clearer messages for coroutines:

   Before: TypeError("generator raised StopIteration")
   After: TypeError("coroutine raised StopIteration")
2015-06-22 12:19:30 -04:00
Serhiy Storchaka 289dd19124 Added the const qualifier for char* argument of Py_EnterRecursiveCall(). 2015-06-21 16:27:09 +03:00
Serhiy Storchaka 5fa22fc088 Added the const qualifier for char* argument of Py_EnterRecursiveCall(). 2015-06-21 16:26:28 +03:00
Yury Selivanov 94c2263005 Issue 24374: Plug refleak in set_coroutine_wrapper 2015-06-04 10:16:51 -04:00
Yury Selivanov eb698fe68c Issue 24342: No need to use PyAPI_FUNC for _PyEval_ApplyCoroutineWrapper 2015-06-02 22:30:31 -04:00
Yury Selivanov aab3c4a211 Issue 24342: Let wrapper set by sys.set_coroutine_wrapper fail gracefully 2015-06-02 18:43:51 -04:00
Yury Selivanov d8cf382ee7 Issue 24017: Make PyEval_(Set|Get)CoroutineWrapper private 2015-06-01 12:15:23 -04:00
Benjamin Peterson 264be6f48f remove STORE_MAP, since it's unused 2015-05-28 14:40:08 -05:00
Benjamin Peterson ee85339cc6 in dict displays, evaluate the key before the value (closes #11205)
Patch partially by Steve Dougherty.
2015-05-28 14:30:26 -05:00
Yury Selivanov 6ef059097c Issue 24017: Drop getawaitablefunc and friends in favor of unaryfunc. 2015-05-28 11:21:31 -04:00
Nick Coghlan baaadbf70d Issue 24017: fix for "async with" refcounting
* adds missing INCREF in WITH_CLEANUP_START
* adds missing DECREF in WITH_CLEANUP_FINISH
* adds several new tests Yury created while investigating this
2015-05-13 15:54:02 +10:00
Yury Selivanov f487a005d6 Fix warnings for PyEval_GetCoroutineWrapper 2015-05-11 23:19:34 -04:00
Yury Selivanov 7544508f02 PEP 0492 -- Coroutines with async and await syntax. Issue #24017. 2015-05-11 22:57:16 -04:00
Benjamin Peterson 025e9ebd0a PEP 448: additional unpacking generalizations (closes #2292)
Patch by Neil Girdhar.
2015-05-05 20:16:41 -04:00
R David Murray 4171bbe687 #23949: Improve tuple unpacking error messages.
Patch by Arnon Yaari.
2015-04-15 17:08:45 -04:00
Victor Stinner efde146b0c Issue #23571: _Py_CheckFunctionResult() now gives the name of the function
which returned an invalid result (result+error or no result without error) in
the exception message.

Add also unit test to check that the exception contains the name of the
function.

Special case: the final _PyEval_EvalFrameEx() check doesn't mention the
function since it didn't execute a single function but a whole frame.
2015-03-21 15:04:43 +01:00
Victor Stinner 59b356d659 Issue #23571: Restore removed assert(!PyErr_Occurred()); in
PyEval_CallObjectWithKeywords()

Sorry Serhiy, I missed your explanation because the review email was moved to
my Spam folder :-(
2015-03-16 11:52:32 +01:00
Victor Stinner 4a7cc88472 Issue #23571: PyObject_Call(), PyCFunction_Call() and call_function() now
raise a SystemError if a function returns a result and raises an exception.
The SystemError is chained to the previous exception.

Refactor also PyObject_Call() and PyCFunction_Call() to make them more readable.

Remove some checks which became useless (duplicate checks).

Change reviewed by Serhiy Storchaka.
2015-03-06 23:35:27 +01:00
Serhiy Storchaka 483405bcca Issue #22883: Got rid of outdated references to PyInt and PyString in comments. 2015-02-17 10:14:30 +02:00
Victor Stinner 13a1c6022b Merge 3.4 (generator) 2015-01-31 11:08:40 +01:00
Victor Stinner 26f7b8acdc Issue #23353: Fix the exception handling of generators in PyEval_EvalFrameEx().
At entry, save or swap the exception state even if PyEval_EvalFrameEx() is
called with throwflag=0. At exit, the exception state is now always restored or
swapped, not only if why is WHY_YIELD or WHY_RETURN. Patch co-written with
Antoine Pitrou.
2015-01-31 10:29:47 +01:00
Victor Stinner 0b881dd50f Issue #18028: Fix aliasing issue in READ_TIMESTAMP() of ceval.c on x86_64,
when Python is configure with --with-tsc. Patch written by Christian Heimes.
2014-12-12 13:17:41 +01:00
Victor Stinner 60b33cc6a5 Merge 3.4 (ceval.c) 2014-12-12 13:19:48 +01:00
Antoine Pitrou 0373a106a1 Issue #17636: Circular imports involving relative imports are now supported. 2014-10-13 20:19:45 +02:00
Benjamin Peterson e6bfdb9ca5 merge 3.4 2014-06-16 23:07:15 -07:00
Benjamin Peterson 17548dda51 check if the thread is finalizing after retaking the GIL 2014-06-16 22:59:07 -07:00
Victor Stinner 40ee30181f Issue #21205: Add a new ``__qualname__`` attribute to generator, the qualified
name, and use it in the representation of a generator (``repr(gen)``). The
default name of the generator (``__name__`` attribute) is now get from the
function instead of the code. Use ``gen.gi_code.co_name`` to get the name of
the code.
2014-06-16 15:59:28 +02:00
Benjamin Peterson a548a30fed merge 3.4 (#21209) 2014-04-13 23:52:43 -04:00
Benjamin Peterson f6e50b4a81 fix sending tuples to custom generator objects with yield from (closes #21209)
Debugged by Victor.
2014-04-13 23:52:01 -04:00
Benjamin Peterson d51374ed78 PEP 465: a dedicated infix operator for matrix multiplication (closes #21176) 2014-04-09 23:55:56 -04:00
Serhiy Storchaka dfe98a102e Issue #20437: Fixed 22 potential bugs when deleting objects references. 2014-02-09 13:46:20 +02:00
Serhiy Storchaka 505ff755d7 Issue #20437: Fixed 21 potential bugs when deleting objects references. 2014-02-09 13:33:53 +02:00
Victor Stinner fdeb6ec45a Issue #14432: Remove the thread state field from the frame structure. Fix a
crash when a generator is created in a C thread that is destroyed while the
generator is still used. The issue was that a generator contains a frame, and
the frame kept a reference to the Python state of the destroyed C thread. The
crash occurs when a trace function is setup.
2013-12-13 02:01:38 +01:00
Antoine Pitrou 8933521b3d Fix refleak introduced by 4f730c045f5f (issue #18408) and unveiled by 95eea8624d05 (issue #16596). 2013-11-23 14:05:23 +01:00
Guido van Rossum 8820c239f7 Better behavior when stepping over yield[from]. Fixes issue 16596. By Xavier de Gaye. 2013-11-21 11:30:06 -08:00
Victor Stinner cab75e3e1e Issue #19512: PRINT_EXPR bytecode now uses an identifier to get sys.displayhook
to only create the "displayhook" string once
2013-11-06 22:38:37 +01:00
Benjamin Peterson 96c03df771 merge 3.3 2013-10-29 22:25:55 -04:00
Benjamin Peterson 8f169489c4 update comment 2013-10-29 22:25:06 -04:00
Victor Stinner 41bb43a71e Issue #18408: Add a new PyFrame_FastToLocalsWithError() function to handle
exceptions when merging fast locals into f_locals of a frame.
PyEval_GetLocals() now raises an exception and return NULL on failure.
2013-10-29 01:19:37 +01:00
Victor Stinner 8d19767403 Close #19199: Remove ``PyThreadState.tick_counter`` field 2013-10-09 14:53:01 +02:00
Antoine Pitrou 1cfa0ba883 Fix macro expansion of _PyErr_OCCURRED(), and make sure to use it in at least one place so as to avoid regressions. 2013-10-07 20:40:59 +02:00
Antoine Pitrou 59c900d3bf Fix macro expansion of _PyErr_OCCURRED(), and make sure to use it in at least one place so as to avoid regressions. 2013-10-07 20:38:51 +02:00
Antoine Pitrou 9ed5f27266 Issue #18722: Remove uses of the "register" keyword in C code. 2013-08-13 20:18:52 +02:00
Antoine Pitrou 58720d6145 Issue #17934: Add a clear() method to frame objects, to help clean up expensive details (local variables) and break reference cycles. 2013-08-05 23:26:40 +02:00
Christian Heimes 895bdfb16e Add missing check of PyDict_SetItem()'s return value in PyEval_EvalCodeEx()
CID 486647
2013-07-20 14:48:21 +02:00
Christian Heimes 0bd447f847 Add missing check of PyDict_SetItem()'s return value in PyEval_EvalCodeEx()
CID 486647
2013-07-20 14:48:10 +02:00
Victor Stinner ace47d7efd Issue #18408: PyEval_EvalFrameEx() and PyEval_CallObjectWithKeywords() now fail
with an assertion error if they are called with an exception set
(PyErr_Occurred()).

If these functions are called with an exception set, the exception may be
cleared and so the caller looses its exception.

Add also assertions to PyEval_CallObjectWithKeywords() and call_function() to
check if the function succeed with no exception set, or the function failed
with an exception set.
2013-07-18 01:41:08 +02:00
Victor Stinner f243ee4055 Issue #18408: add more assertions on PyErr_Occurred() in ceval.c to detect bugs
earlier
2013-07-16 01:02:12 +02:00