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1602 commits

Author SHA1 Message Date
Brett Cannon
679ecb565b Issue #15767: back out 8a0ed9f63c6e, finishing the removal of 
ModuleNotFoundError.
 2013-07-04 17:51:50 -04:00
Brett Cannon
b1611e2772 Issue #15767: Introduce ModuleNotFoundError, a subclass of 
ImportError.

The exception is raised by import when a module could not be found.
Technically this is defined as no viable loader could be found for the
specified module. This includes ``from ... import`` statements so that
the module usage is consistent for all situations where import
couldn't find what was requested.

This should allow for the common idiom of::

  try:
    import something
  except ImportError:
    pass

to be updated to using ModuleNotFoundError and not accidentally mask
ImportError messages that should propagate (e.g. issues with a
loader).

This work was driven by the fact that the ``from ... import``
statement needed to be able to tell the difference between an
ImportError that simply couldn't find a module (and thus silence the
exception so that ceval can raise it) and an ImportError that
represented an actual problem.
 2013-06-12 16:59:46 -04:00
Victor Stinner
d3dfd0e433 Fix a compilater warning on Windows 64-bit 
idx variable is used for a tuple indexn so use Py_ssize_t (not int).
 2013-05-16 23:48:01 +02:00
Benjamin Peterson
e8e14591eb rather than passing locals to the class body, just execute the class body in the proper environment 2013-05-16 14:37:25 -05:00
Benjamin Peterson
e1b4cbc422 when arguments are cells clear the locals slot (backport of #17927) 2013-05-14 22:31:26 -05:00
Benjamin Peterson
159ae41da6 when an argument is a cell, set the local copy to NULL (see #17927) 2013-05-12 18:16:06 -05:00
Guido van Rossum
6832c81d5d #17927: Keep frame from referencing cell-ified arguments. 2013-05-10 08:47:42 -07:00
Antoine Pitrou
8408cea0cd Issue #17094: Clear stale thread states after fork(). 
Note that this is a potentially disruptive change since it may
release some system resources which would otherwise remain
perpetually alive (e.g. database connections kept in thread-local
storage).
 2013-05-05 23:47:09 +02:00
Benjamin Peterson
3b0431dc60 check local class namespace before reaching for cells (closes #17853) 2013-04-30 09:41:40 -04:00
R David Murray
f097f175dd Merge #17413: make sure settrace funcs get passed exception instances for 'value'. 
Patch by Ingrid Cheung and Brendan McLoughlin.
 2013-04-19 12:57:54 -04:00
R David Murray
3583761bcd #17413: make sure settrace funcs get passed exception instances for 'value'. 
Patch by Ingrid Cheung and Brendan McLoughlin.
 2013-04-19 12:56:57 -04:00
Ezio Melotti
04a29554c1 #17032: The "global" in the "NameError: global name 'x' is not defined" error message has been removed. Patch by Ram Rachum. 2013-03-03 15:12:44 +02:00
Benjamin Peterson
1ef876cd28 evaluate positional defaults before keyword-only defaults (closes #16967) 2013-02-10 09:29:59 -05:00
Benjamin Peterson
51f4616f6e revert #16672 for incorrect semantics 2013-01-23 08:38:47 -05:00
Benjamin Peterson
6f0c94df50 improve tracing performance when f_trace is NULL (closes #16672) 
Patch by Xavier de Gaye.
 2012-12-24 11:53:30 -06:00
Benjamin Peterson
9272279afd use error label instead of breaking eval loop (closes #16693) 2012-12-15 12:51:05 -05:00
Benjamin Peterson
fe1bcb64cd move more variable declarations to the top of blocks 2012-10-12 11:40:01 -04:00
Benjamin Peterson
f208df3618 move declaration to top of block 2012-10-12 11:37:56 -04:00
Benjamin Peterson
31a58ff1c3 ceval cleanup 
- Make many variables local to the opcode; Kill u, v, w, and x.
- Force every opcode to end with DISPATCH or jump to error handling.
- Simplify error handling.
- Check error statuses in more places.

Closes #16191.
 2012-10-12 11:34:51 -04:00
Benjamin Peterson
00f86f2202 add some missing DISPATCH() 2012-10-10 14:10:33 -04:00
Benjamin Peterson
b37df519c7 fix yield from return value on custom iterators (closes #15568) 2012-08-06 17:53:09 -07:00
Nick Coghlan
c40bc09942 Issue #13783: the PEP 380 implementation no longer expands the public C API 2012-06-17 15:15:49 +10:00
Benjamin Peterson
d1ab6089ff check return for error 2012-06-01 11:18:22 -07:00
Benjamin Peterson
d5a1c44455 PEP 415: Implement suppression of __context__ display with an exception attribute 
This replaces the original PEP 409 implementation. See #14133.
 2012-05-14 22:09:31 -07:00
Benjamin Peterson
1138944888 only incref when using borrowing functions 2012-04-26 00:26:37 -04:00
Benjamin Peterson
7d95e40721 Implement PEP 412: Key-sharing dictionaries (closes #13903) 
Patch from Mark Shannon.
 2012-04-23 11:24:50 -04:00
Antoine Pitrou
bf35c156b4 Fix refleak: PyObject_GetItem returns a new reference, not a borrowed one like PyDict_GetItem. 2012-04-19 18:21:04 +02:00
Victor Stinner
b0b224233e Issue #14385: Support other types than dict for __builtins__ 
It is now possible to use a custom type for the __builtins__ namespace, instead
of a dict. It can be used for sandboxing for example.  Raise also a NameError
instead of ImportError if __build_class__ name if not found in __builtins__.
 2012-04-19 00:57:45 +02:00
Brett Cannon
368b4b7405 Guard an LLTRACE variable to silence an unused variable warning. 2012-04-02 12:17:59 -04:00
Victor Stinner
3c1e48176e Issue #14383: Add _PyDict_GetItemId() and _PyDict_SetItemId() functions 
These functions simplify the usage of static constant Unicode strings.
Generalize the usage of _Py_Identifier in ceval.c and typeobject.c.
 2012-03-26 22:10:51 +02:00
Benjamin Peterson
302e7902c8 use identifier api 2012-03-20 23:17:04 -04:00
Benjamin Peterson
2afe6aeae8 perform yield from delegation by repeating YIELD_FROM opcode (closes #14230) 
This allows generators that are using yield from to be seen by debuggers. It
also kills the f_yieldfrom field on frame objects.

Patch mostly from Mark Shannon with a few tweaks by me.
 2012-03-15 15:37:39 -05:00
Nick Coghlan
ab7bf2143e Close issue #6210: Implement PEP 409 2012-02-26 17:49:52 +10:00
Benjamin Peterson
ce79852077 use the static identifier api for looking up special methods 
I had to move the static identifier code from unicodeobject.h to object.h in
order for this to work.
 2012-01-22 11:24:29 -05:00
Amaury Forgeot d'Arc
0a239e9191 Fix compilation with C89 compilers (Windows...) 2012-01-13 21:08:49 +01:00
Benjamin Peterson
0296a56520 NULL and no exception set from tp_iternext means StopIteration 2012-01-13 14:54:31 -05:00
Nick Coghlan
1f7ce62bd6 Implement PEP 380 - 'yield from' (closes #11682) 2012-01-13 21:43:40 +10:00
Antoine Pitrou
86a36b500a PEP 3155 / issue #13448: Qualified name for classes and functions. 2011-11-25 18:56:07 +01:00
Martin v. Löwis
1c67dd9b15 Port SetAttrString/HasAttrString to SetAttrId/GetAttrId. 2011-10-14 15:16:45 +02:00
Martin v. Löwis
bd928fef42 Rename _Py_identifier to _Py_IDENTIFIER. 2011-10-14 10:20:37 +02:00
Martin v. Löwis
afe55bba33 Add API for static strings, primarily good for identifiers. 
Thanks to Konrad Schöbel and Jasper Schulz for helping with the mass-editing.
 2011-10-09 10:38:36 +02:00
Victor Stinner
d2a915dbf6 ceval.c: restore str+=str optimization 2011-10-02 20:34:20 +02:00
Benjamin Peterson
811c2f1369 remove "fast-path" for (i)adding strings 
These were just an artifact of the old unicode concatenation hack and likely
just penalized other kinds of adding. Also, this fixes __(i)add__ on string
subclasses.
 2011-09-30 21:31:21 -04:00
Victor Stinner
bec0fda264 Remove commented code: str+=str is no more super-optimized 2011-10-01 01:26:08 +02:00
Martin v. Löwis
d63a3b8beb Implement PEP 393. 2011-09-28 07:41:54 +02:00
Charles-François Natali
f23339a7bb Issue 12620: Make pendingbusy flag static to Py_MakePendingCalls(). 2011-07-23 18:15:43 +02:00
Benjamin Peterson
76f7f4d979 excise the remains of STOP_CODE, which hasn't done anything useful for years 2011-07-17 22:49:50 -05:00
Benjamin Peterson
e92cd0ce98 merge 3.2 (#11627) 2011-07-15 14:10:35 -05:00
Benjamin Peterson
5afa03a72e catch nasty exception classes with __new__ that doesn't return a exception (closes #11627) 
Patch from Andreas Stührk.
 2011-07-15 14:09:26 -05:00
Benjamin Peterson
9bfd0dee9b no one passes NULL here (or should anyway) 2011-07-03 17:06:32 -05:00