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.
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.
- not allowed when implicitly re-raised the current exception
- last exception raised is always displayed last
- attempt to make it clearer when/if cause and context are shown
Pass the original filename argument to OSError constructor, instead of trying
to encode it to or decode it from the filesystem encoding. This change avoids
an additionnal UnicodeDecodeError on Windows if the filename cannot be decoded
from the filesystem encoding (ANSI code page).
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.
:option: is used to create a link to an option of python, not to mark
up any instance of any arbitrary command-line option. These were
changed to ````.
For modules which do have a command-line interface, lists of options
have been properly marked up with the program/cmdoption directives
combo. Options defined in such blocks can be linked to with :option:
later in the same file, they won’t link to an option of python.
Finally, the markup of command-line fragments in optparse.rst has
been cleaned to use ``x`` instead of ``"x"``, keeping that latter
form for actual Python strings.
Patch by Eli Bendersky and Éric Araujo.
svn+ssh://pythondev@svn.python.org/python/trunk
........
r78024 | georg.brandl | 2010-02-06 19:44:44 +0100 (Sa, 06 Feb 2010) | 1 line
#5341: fix "builtin" where used as an adjective ("built-in" is correct).
........
svn+ssh://pythondev@svn.python.org/python/trunk
........
r73706 | georg.brandl | 2009-06-30 12:18:55 -0400 (Tue, 30 Jun 2009) | 1 line
#6384: Add a heading for the exception hierarchy.
........
r73778 | r.david.murray | 2009-07-02 14:19:20 -0400 (Thu, 02 Jul 2009) | 3 lines
Issue 6389: add documentation for the 'mode' flags defined in the
stat module.
........
svn+ssh://pythondev@svn.python.org/python/trunk
........
r72506 | vinay.sajip | 2009-05-09 07:07:17 -0500 (Sat, 09 May 2009) | 1 line
Issue #5971: StreamHandler.handleError now swallows IOErrors which occur when trying to print a traceback.
........
r72525 | benjamin.peterson | 2009-05-09 20:38:02 -0500 (Sat, 09 May 2009) | 1 line
close file explicitly
........
r72526 | benjamin.peterson | 2009-05-09 21:29:00 -0500 (Sat, 09 May 2009) | 1 line
make sure files are closed using the with statement
........
r72551 | benjamin.peterson | 2009-05-10 09:16:47 -0500 (Sun, 10 May 2009) | 1 line
use isinstance
........
r72558 | benjamin.peterson | 2009-05-10 18:52:09 -0500 (Sun, 10 May 2009) | 1 line
sys.setdefaultencoding() strikes me as a bad example
........
r72616 | benjamin.peterson | 2009-05-13 19:33:10 -0500 (Wed, 13 May 2009) | 1 line
importlib.import_module is better these days
........
r72654 | benjamin.peterson | 2009-05-14 17:37:49 -0500 (Thu, 14 May 2009) | 1 line
prevent refleaks from threads
........
r72655 | benjamin.peterson | 2009-05-14 17:40:34 -0500 (Thu, 14 May 2009) | 1 line
a useful decorator for cleaning up threads
........
r72689 | benjamin.peterson | 2009-05-16 13:44:34 -0500 (Sat, 16 May 2009) | 1 line
use skipTest()
........
r72745 | benjamin.peterson | 2009-05-17 09:16:29 -0500 (Sun, 17 May 2009) | 1 line
ignore .rst files in sphinx its self
........
r72750 | benjamin.peterson | 2009-05-17 11:59:27 -0500 (Sun, 17 May 2009) | 1 line
chop off slash
........
r72802 | georg.brandl | 2009-05-20 13:35:27 -0500 (Wed, 20 May 2009) | 1 line
#6051: refer to email examples for better way to construct email messages.
........
r72812 | michael.foord | 2009-05-21 17:57:02 -0500 (Thu, 21 May 2009) | 1 line
Rename TestCase._result to _resultForDoCleanups to avoid potential clashes in TestCase subclasses. Issue 6072.
........
r72822 | georg.brandl | 2009-05-22 04:33:25 -0500 (Fri, 22 May 2009) | 1 line
#6084: fix example.
........
r72824 | georg.brandl | 2009-05-22 04:43:17 -0500 (Fri, 22 May 2009) | 1 line
Fix references to file-related functions and methods (os.* vs file.*).
........
r72826 | georg.brandl | 2009-05-22 04:49:42 -0500 (Fri, 22 May 2009) | 1 line
Fix confusing wording.
........
r72827 | georg.brandl | 2009-05-22 04:50:30 -0500 (Fri, 22 May 2009) | 1 line
s/use/call/
........
r72833 | georg.brandl | 2009-05-22 12:00:17 -0500 (Fri, 22 May 2009) | 1 line
#6078: _warnings is a builtin module and has no standard init_warnings function.
........
r72876 | benjamin.peterson | 2009-05-23 15:59:09 -0500 (Sat, 23 May 2009) | 1 line
remove mention of old ctypes version
........
r72890 | gregory.p.smith | 2009-05-24 13:00:13 -0500 (Sun, 24 May 2009) | 2 lines
add a versionadded tag for set_tunnel
........
r72923 | michael.foord | 2009-05-25 15:36:56 -0500 (Mon, 25 May 2009) | 1 line
Make assertSequenceEqual error messages less cryptic, particularly for nested sequences.
........
r72946 | ronald.oussoren | 2009-05-26 13:44:48 -0500 (Tue, 26 May 2009) | 2 lines
Fixes issue 6110
........
r73026 | r.david.murray | 2009-05-29 14:30:27 -0500 (Fri, 29 May 2009) | 3 lines
Issue 6141: document that the first item of args is still the
command name even when executable is specified.
........
r73042 | benjamin.peterson | 2009-05-29 22:10:52 -0500 (Fri, 29 May 2009) | 1 line
no fdatasync on macos
........
r73045 | georg.brandl | 2009-05-30 02:26:04 -0500 (Sat, 30 May 2009) | 1 line
#6146: fix markup bug.
........
r73047 | georg.brandl | 2009-05-30 05:33:23 -0500 (Sat, 30 May 2009) | 1 line
Fix some more small markup problems.
........
r73065 | antoine.pitrou | 2009-05-30 16:39:25 -0500 (Sat, 30 May 2009) | 3 lines
The test for #5330 wasn't correct.
........
r73068 | antoine.pitrou | 2009-05-30 16:45:40 -0500 (Sat, 30 May 2009) | 3 lines
Update ACKS
........
r73069 | benjamin.peterson | 2009-05-30 19:42:42 -0500 (Sat, 30 May 2009) | 1 line
fix signature
........
svn+ssh://pythondev@svn.python.org/python/trunk
........
r59923 | raymond.hettinger | 2008-01-11 19:04:55 +0100 (Fri, 11 Jan 2008) | 1 line
Speed-up and simplify code urlparse's result objects.
........
r59924 | andrew.kuchling | 2008-01-11 20:33:24 +0100 (Fri, 11 Jan 2008) | 1 line
Bug #1790: update link; remove outdated paragraph
........
r59925 | thomas.heller | 2008-01-11 20:34:06 +0100 (Fri, 11 Jan 2008) | 5 lines
Raise an error instead of crashing with a segfault when a NULL
function pointer is called.
Will backport to release25-maint.
........
r59927 | thomas.heller | 2008-01-11 21:29:19 +0100 (Fri, 11 Jan 2008) | 4 lines
Fix a potential 'SystemError: NULL result without error'.
NULL may be a valid return value from PyLong_AsVoidPtr.
Will backport to release25-maint.
........
r59928 | raymond.hettinger | 2008-01-12 00:25:18 +0100 (Sat, 12 Jan 2008) | 1 line
Update the opcode docs for STORE_MAP and BUILD_MAP
........
r59929 | mark.dickinson | 2008-01-12 02:56:00 +0100 (Sat, 12 Jan 2008) | 4 lines
Issue 1780: Allow leading and trailing whitespace in Decimal constructor,
when constructing from a string. Disallow trailing newlines in
Context.create_decimal.
........
r59930 | georg.brandl | 2008-01-12 11:53:29 +0100 (Sat, 12 Jan 2008) | 3 lines
Move OSError docs to exceptions doc, remove obsolete descriptions
from os docs, rework posix docs.
........
r59931 | georg.brandl | 2008-01-12 14:47:57 +0100 (Sat, 12 Jan 2008) | 3 lines
Patch #1700288: Method cache optimization, by Armin Rigo, ported to
2.6 by Kevin Jacobs.
........
r59932 | georg.brandl | 2008-01-12 17:11:09 +0100 (Sat, 12 Jan 2008) | 2 lines
Fix editing glitch.
........
svn+ssh://pythondev@svn.python.org/python/trunk
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
NOTE: The merge does NOT contain the modified file Python/import.c from
r59288. I can't get it running. Nick, please check in the PEP 366
manually.
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
........
r59279 | georg.brandl | 2007-12-02 19:17:50 +0100 (Sun, 02 Dec 2007) | 2 lines
Fix a sentence I missed before. Do not merge to 3k.
........
r59281 | georg.brandl | 2007-12-02 22:58:54 +0100 (Sun, 02 Dec 2007) | 3 lines
Add documentation for PySys_* functions.
Written by Charlie Shepherd for GHOP. Also fixes#1245.
........
r59288 | nick.coghlan | 2007-12-03 13:55:17 +0100 (Mon, 03 Dec 2007) | 1 line
Implement PEP 366
........
r59290 | christian.heimes | 2007-12-03 14:47:29 +0100 (Mon, 03 Dec 2007) | 3 lines
Applied my patch #1455 with some extra fixes for VS 2005
The new msvc9compiler module supports VS 2005 and VS 2008. I've also fixed build_ext to support PCbuild8 and PCbuild9 and backported my fix for xxmodule.c from py3k. The old code msvccompiler is still in place in case somebody likes to build an extension with VS 2003 or earlier.
I've also updated the cygwin compiler module for VS 2005 and VS 2008. It works with VS 2005 but I'm unable to test it with VS 2008. We have to wait for a new version of cygwin.
........
r59291 | christian.heimes | 2007-12-03 14:55:16 +0100 (Mon, 03 Dec 2007) | 1 line
Added comment to Misc/NEWS for r59290
........
r59292 | christian.heimes | 2007-12-03 15:28:04 +0100 (Mon, 03 Dec 2007) | 1 line
I followed MA Lemberg's suggestion and added comments to the late initialization of the type slots.
........
r59293 | facundo.batista | 2007-12-03 17:29:52 +0100 (Mon, 03 Dec 2007) | 3 lines
Speedup and cleaning of __str__. Thanks Mark Dickinson.
........
r59294 | facundo.batista | 2007-12-03 18:55:00 +0100 (Mon, 03 Dec 2007) | 4 lines
Faster _fix function, and some reordering for a more elegant
coding. Thanks Mark Dickinson.
........
r59295 | martin.v.loewis | 2007-12-03 20:20:02 +0100 (Mon, 03 Dec 2007) | 5 lines
Issue #1727780: Support loading pickles of random.Random objects created
on 32-bit systems on 64-bit systems, and vice versa. As a consequence
of the change, Random pickles created by Python 2.6 cannot be loaded
in Python 2.5.
........
r59297 | facundo.batista | 2007-12-03 20:49:54 +0100 (Mon, 03 Dec 2007) | 3 lines
Two small fixes. Issue 1547.
........
r59299 | georg.brandl | 2007-12-03 20:57:02 +0100 (Mon, 03 Dec 2007) | 2 lines
#1548: fix apostroph placement.
........
r59300 | christian.heimes | 2007-12-03 21:01:02 +0100 (Mon, 03 Dec 2007) | 3 lines
Patch #1537 from Chad Austin
Change GeneratorExit's base class from Exception to BaseException
(This time I'm applying the patch to the correct sandbox.)
........
r59302 | georg.brandl | 2007-12-03 21:03:46 +0100 (Mon, 03 Dec 2007) | 3 lines
Add examples to the xmlrpclib docs.
Written for GHOP by Josip Dzolonga.
........
Serhiy Storchaka
Georg Brandl
Brett Cannon
Nick Coghlan
Andrew Svetlov
Benjamin Peterson
Victor Stinner
Ezio Melotti
Amaury Forgeot d'Arc
Antoine Pitrou
Éric Araujo
Alexandre Vassalotti
Christian Heimes