_PyErr_ChainExceptions() function.

Issue #18711: Add a new `PyErr_FormatV` function, similar to `PyErr_Format` but accepting a `va_list` argument.

now register both filenames in the exception on failure.
This required adding new C API functions allowing OSError exceptions
to reference two filenames instead of one.

are used.

Move also _Py_IDENTIFIER() defintions to the top in modified files to remove
identifiers duplicated in the same file.

_PyUnicode_CompareWithId() is faster than PyUnicode_CompareWithASCIIString()
when both strings are equal and interned.

Add also _PyId_builtins identifier for "builtins" common string.

instead of creating temporary Unicode string objects

Add also more identifiers in pythonrun.c to avoid temporary Unicode string
objets for the interactive interpreter.

are now created non-inheritable; add functions os.get/set_inheritable(),
os.get/set_handle_inheritable() and socket.socket.get/set_inheritable().

filenames anymore on Windows.

 * Catch PyFile_WriteString() and PyFile_WriteObject() errors
 * Clear the current exception on _PyObject_GetAttrId() failure
 * Use PyUnicode_CompareWithASCIIString() and PyFile_WriteObject() instead of
   _PyUnicode_AsString() and strcmp() to avoid Unicode encoding error. stderr
   has a more tolerant error handler than utf-8/strict.

before PyExc_MemoryError has been initialized by _PyExc_Init()

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.

PyObject_IsSubclass() can fail and raise a new exception!

fails with an assertion error

Forgot to raise ModuleNotFoundError when None is found in sys.modules.
This led to introducing the C function PyErr_SetImportErrorSubclass()
to make setting ModuleNotFoundError easier.

Also updated the reference docs to mention ModuleNotFoundError
appropriately. Updated the docs for ModuleNotFoundError to mention the
None in sys.modules case.

Lastly, it was noticed that PyErr_SetImportError() was not setting an
exception when returning None in one case. That issue is now fixed.

Patch by Serhiy Storchaka.

  Patch by Alon Horev with update by Alexey Kachayev.

Patch by Stefan Behnel.

Add INCREFs, fix args->kwargs, and a second args==NULL check was removed,
left over from a merger with another function. Instead, checking msg==NULL
does what that used to do in a roundabout way.

Currently import does not use these attributes as they are planned
for use by importlib (which will be another commit).

Thanks to Filip Gruszczyński for the initial patch and Brian Curtin
for refining it.

instead of surrogateescape

So it would be possible to support more error handlers later.

calling sys.setrecursionlimit((1<<31)-1).

2.7 only.

works properly.

PyErr_SetFromErrnoWithFilenameObject() was already fixed by the changeset
793c75177d28. This commit fixes PyErr_SetExcFromWindowsErrWithFilenameObject(),
used on Windows.

"except" works properly.

PyErr_SetExcFromWindowsErrWithFilename() decode the filename from the
filesystem encoding instead of UTF-8.

svn+ssh://pythondev@svn.python.org/python/branches/py3k

........
  r85896 | antoine.pitrou | 2010-10-29 00:56:58 +0200 (ven., 29 oct. 2010) | 4 lines

  Issue #5437: A preallocated MemoryError instance should not hold traceback
  data (including local variables caught in the stack trace) alive infinitely.
........