Commit Graph

93 Commits

Author SHA1 Message Date
Irit Katriel 069560b117
bpo-34463: Make python tracebacks identical to C tracebacks for SyntaxErrors without a lineno (GH-23427) 2020-12-22 21:53:09 +02:00
Irit Katriel 427613f005
bpo-42482: remove reference to exc_traceback from TracebackException (GH-23531) 2020-11-30 17:35:25 -08:00
Zackery Spytz 91e93794d5
bpo-26389: Allow passing an exception object in the traceback module (GH-22610)
The format_exception(), format_exception_only(), and
print_exception() functions can now take an exception object as a positional-only argument.

Co-Authored-By: Matthias Bussonnier <bussonniermatthias@gmail.com>
2020-11-05 22:18:44 +00:00
Guido van Rossum 15bc9ab301
bpo-40612: Fix SyntaxError edge cases in traceback formatting (GH-20072)
This fixes both the traceback.py module and the C code for formatting syntax errors (in Python/pythonrun.c). They now both consistently do the following:

- Suppress caret if it points left of text
- Allow caret pointing just past end of line
- If caret points past end of line, clip to *just* past end of line

The syntax error formatting code in traceback.py was mostly rewritten; small, subtle changes were applied to the C code in pythonrun.c.

There's still a difference when the text contains embedded newlines. Neither handles these very well, and I don't think the case occurs in practice.

Automerge-Triggered-By: @gvanrossum
2020-05-14 19:22:48 -07:00
Galden df8913f7c4
Fix typo in Lib/tracepack.py (GH-19605)
Typo fix: "emites" -> "emit".
2020-04-19 19:17:37 -07:00
Serhiy Storchaka 662db125cd
bpo-37685: Fixed __eq__, __lt__ etc implementations in some classes. (GH-14952)
They now return NotImplemented for unsupported type of the other operand.
2019-08-08 08:42:54 +03:00
Berker Peksag 9797b7ae44 bpo-26502: Implement FrameSummary.__len__() (GH-8632) 2018-09-10 10:02:33 -07:00
Benjamin Peterson d545869d08
bpo-34588: Fix an off-by-one error in traceback formatting. (GH-9077)
The recursive frame pruning code always undercounted the number of elided frames
by one. That is, in the "[Previous line repeated N more times]" message, N would
always be one too few. Near the recursive pruning cutoff, one frame could be
silently dropped. That situation is demonstrated in the OP of the bug report.

The fix is to start the identical frame counter at 1.
2018-09-10 08:43:10 -07:00
torsava f394ee5eaf bpo-27910: Update documentation of traceback module (GH-6116)
In the documentation for the traceback module, the definitions of functions
extract_tb(), format_list() and classmethod StackSummary.from_list()
mention the old style 4-tuples that these functions used to return or accept.

Since Python 3.5, however, they return or accept a FrameSummary object
instead of a 4-tuple, or a StackSummary object instead of a list of 4-tuples.

Co-Authored-By: Berker Peksag <berker.peksag@gmail.com>
2018-08-02 19:08:59 +03:00
Zane Bitter de86073a76 bpo-28603: Fix formatting tracebacks for unhashable exceptions (#4014) 2017-10-18 00:29:39 +03:00
Jon Dufresne 3972628de3 bpo-30296 Remove unnecessary tuples, lists, sets, and dicts (#1489)
* Replaced list(<generator expression>) with list comprehension
* Replaced dict(<generator expression>) with dict comprehension
* Replaced set(<list literal>) with set literal
* Replaced builtin func(<list comprehension>) with func(<generator
  expression>) when supported (e.g. any(), all(), tuple(), min(), &
  max())
2017-05-18 07:35:54 -07:00
Martin Panter f3b0639417 Issue #27348: Merge exception formatting fix from 3.5 into 3.6 2016-09-22 10:33:21 +00:00
Martin Panter bb8b1cb6af Issue #27348: Restore “Exception: None” formatting in traceback module
This fixes a regression caused by revision 73afda5a4e4c. Also reverts the
decimal test workaround added in revision 5f3dd0a2b1ab.

Remove test_without_exception(). According to revision ecaafc32c500, this was
added in Python 2 so that print_exc() would output “None” when called with no
exception set. However print_exc() never worked like this in Python 3, and
the use case is not documented.

Restore TracebackCases class name (instead of SyntaxTracebackCases), because
the class also tests other exceptions.
2016-09-22 09:37:39 +00:00
Eric V. Smith 451d0e38fc Issue 27948: Allow backslashes in the literal string portion of f-strings, but not in the expressions. Also, require expressions to begin and end with literal curly braces. 2016-09-09 21:56:20 -04:00
Eric V. Smith 06cf601e4f Issue 27921: Remove backslash from another f-string. I'll revert this change before beta 2. I also need to look in to why test_tools/test_unparse fails with the files that are now being skipped. 2016-09-03 12:33:38 -04:00
Eric V. Smith 6a4efce7a5 Closes issue 27921: Disallow backslashes anywhere in f-strings. This is a temporary restriction. In 3.6 beta 2, the plan is to again allow backslashes in the string parts of f-strings, but disallow them in the expression parts. 2016-09-03 09:18:34 -04:00
Nick Coghlan d00342347e Issue #26823: Abbreviate recursive tracebacks
Large sections of repeated lines in tracebacks are now abbreviated as
"[Previous line repeated {count} more times]" by both the traceback
module and the builtin traceback rendering.

Patch by Emanuel Barry.
2016-08-15 13:11:34 +10:00
Martin Panter 3e04d5b306 Issue #27076: Merge spelling from 3.5 2016-05-26 06:03:19 +00:00
Martin Panter 46f50726a0 Issue #27076: Doc, comment and tests spelling fixes
Most fixes to Doc/ and Lib/ directories by Ville Skyttä.
2016-05-26 05:35:26 +00:00
Serhiy Storchaka 87b93fe36f Issue #25111: Fixed comparison of traceback.FrameSummary. 2015-09-29 22:34:16 +03:00
Serhiy Storchaka 3066fc41d1 Issue #25111: Fixed comparison of traceback.FrameSummary. 2015-09-29 22:33:36 +03:00
Serhiy Storchaka 4ebf9d3a21 Issue #25108: Omitted internal frames in traceback functions print_stack(),
format_stack(), and extract_stack() called without arguments.
2015-09-18 10:06:23 +03:00
Serhiy Storchaka e953ba794c Issue #25108: Omitted internal frames in traceback functions print_stack(),
format_stack(), and extract_stack() called without arguments.
2015-09-18 10:04:47 +03:00
Robert Collins aece8248b6 Issue #24710: Use cls in TracebackException.from_exception.
Minor cleanup patch from Berker Peksag.
2015-07-26 06:50:51 +12:00
Berker Peksag c3f417dc47 Issue #24695: Fix a regression in traceback.print_exception()
If exc_traceback is None we shouldn't print a traceback header
like described in the documentation.
2015-07-24 17:36:21 +03:00
Serhiy Storchaka 24559e4834 Issue #22619: Added negative limit support in the traceback module.
Based on patch by Dmitry Kazakov.
2015-05-03 13:19:46 +03:00
Berker Peksag 716b3d3e91 Issue #23883: Add missing entries to traceback.__all__. 2015-04-08 09:47:14 +03:00
Robert Collins bbb8ade904 Issue #23631: Fix traceback.format_list when a traceback has been mutated. 2015-03-16 15:27:16 +13:00
Robert Collins d7c7e0ef69 Issue #22936: Make it possible to show local variables in tracebacks. 2015-03-05 20:28:52 +13:00
Robert Collins 2f0441f03f Remaining fallout from 17911
The code module was using a private function from traceback in order to skip a
frame - used the direct interface to do that instead,

The decimal module suffered minor fallout from formatting changes ('None' as a
value is now not printed by traceback, the same as None was not before).

The cgitb module was passing a bogus exception type (type.__name__) into
format_exception, which uncovered that format_exception and print_exception had
been ignoring the etype for some time, so the compatibility thunk to the new
code now does the same thing.
2015-03-05 15:45:01 +13:00
Robert Collins 6bc2c1e7eb Issue #17911: traceback module overhaul
Provide a way to seed the linecache for a PEP-302 module without actually
loading the code.

Provide a new object API for traceback, including the ability to not lookup
lines at all until the traceback is actually rendered, without any trace of the
original objects being kept alive.
2015-03-05 12:07:57 +13:00
Serhiy Storchaka 521e5860a5 Issue #22032: __qualname__ instead of __name__ is now always used to format
fully qualified class names of Python implemented classes.
2014-07-22 15:00:37 +03:00
Florent Xicluna 45e124e26d Issue #17825: Cursor ^ is correctly positioned for SyntaxError and IndentationError. 2014-01-22 01:16:25 +01:00
Florent Xicluna 758fa5ea81 Issue #17825: Cursor ^ is correctly positioned for SyntaxError and IndentationError. 2014-01-22 01:11:43 +01:00
Georg Brandl 64bed06036 merge with 3.3 2013-10-13 23:34:06 +02:00
Georg Brandl 9e091e120b Closes #16657: fix docstring of traceback.format_tb(). 2013-10-13 23:32:14 +02:00
Andrew Kuchling 173a157e72 #1565525: Add traceback.clear_frames() helper function to clear locals ref'd by a traceback 2013-09-15 18:15:56 -04:00
Benjamin Peterson d9fec15e9b refactor traceback.py to reduce code duplication (closes #17646)
Patch by Martin Morrison.
2013-04-29 16:09:39 -04:00
Philip Jenvey 4993cc0a5b utilize yield from 2012-10-01 12:53:43 -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
Nick Coghlan ab7bf2143e Close issue #6210: Implement PEP 409 2012-02-26 17:49:52 +10:00
Antoine Pitrou 7b0d4a238f Issue #4486: When an exception has an explicit cause, do not print its implicit context too. 2009-11-28 16:12:28 +00:00
Georg Brandl 2ad07c301e Small PEP8 correction. 2009-09-16 14:24:29 +00:00
Georg Brandl 3cfdd9c1d5 Merged revisions 73186,73206,73212 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r73186 | georg.brandl | 2009-06-03 23:21:09 +0200 (Mi, 03 Jun 2009) | 1 line

  #6174: fix indentation in code example.
........
  r73206 | georg.brandl | 2009-06-04 11:15:12 +0200 (Do, 04 Jun 2009) | 1 line

  #3584: ignore trailing newlines when placing the caret for a SyntaxError location.
........
  r73212 | georg.brandl | 2009-06-04 12:10:41 +0200 (Do, 04 Jun 2009) | 1 line

  Better name for "Ctor".
........
2009-06-04 10:21:10 +00:00
Georg Brandl 236f7979ba Merged revisions 71237-71238 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r71237 | georg.brandl | 2009-04-05 16:24:52 +0200 (So, 05 Apr 2009) | 1 line

  #1326077: fix traceback formatting of SyntaxErrors.  This fixes two differences with formatting coming from Python: a) the reproduction of location details in the error message if no line text is given, b) the prefixing of the last line by one space.
........
  r71238 | georg.brandl | 2009-04-05 16:25:41 +0200 (So, 05 Apr 2009) | 1 line

  Add NEWS entry for r71237.
........
2009-04-05 14:28:42 +00:00
Benjamin Peterson e549ead826 Merged revisions 70554,70588-70589,70598,70605,70611-70621,70623-70624,70626-70627 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r70554 | benjamin.peterson | 2009-03-23 16:25:15 -0500 (Mon, 23 Mar 2009) | 1 line

  complain when there's no last exception
........
  r70588 | benjamin.peterson | 2009-03-24 17:56:32 -0500 (Tue, 24 Mar 2009) | 1 line

  fix newline issue in test summary
........
  r70589 | benjamin.peterson | 2009-03-24 18:07:07 -0500 (Tue, 24 Mar 2009) | 1 line

  another style nit
........
  r70598 | benjamin.peterson | 2009-03-25 16:24:04 -0500 (Wed, 25 Mar 2009) | 1 line

  add shorthands for expected failures and unexpected success
........
  r70605 | benjamin.peterson | 2009-03-26 11:32:23 -0500 (Thu, 26 Mar 2009) | 1 line

  remove uneeded function
........
  r70611 | benjamin.peterson | 2009-03-26 13:35:37 -0500 (Thu, 26 Mar 2009) | 1 line

  add much better tests for python version information parsing
........
  r70612 | benjamin.peterson | 2009-03-26 13:55:48 -0500 (Thu, 26 Mar 2009) | 1 line

  more and more implementations now support sys.subversion
........
  r70613 | benjamin.peterson | 2009-03-26 13:58:30 -0500 (Thu, 26 Mar 2009) | 1 line

  roll old test in with new one
........
  r70614 | benjamin.peterson | 2009-03-26 14:09:21 -0500 (Thu, 26 Mar 2009) | 1 line

  add support for PyPy
........
  r70615 | benjamin.peterson | 2009-03-26 14:58:18 -0500 (Thu, 26 Mar 2009) | 5 lines

  add some useful utilities for skipping tests with unittest's new skipping ability

  most significantly apply a modified portion of the patch from #4242 with
  patches for skipping implementation details
........
  r70616 | benjamin.peterson | 2009-03-26 15:05:50 -0500 (Thu, 26 Mar 2009) | 1 line

  rename TestCase.skip() to skipTest() because it causes annoying problems with trial #5571
........
  r70617 | benjamin.peterson | 2009-03-26 15:17:27 -0500 (Thu, 26 Mar 2009) | 1 line

  apply the second part of #4242's patch; classify all the implementation details in test_descr
........
  r70618 | benjamin.peterson | 2009-03-26 15:48:25 -0500 (Thu, 26 Mar 2009) | 1 line

  remove test_support.TestSkipped and just use unittest.SkipTest
........
  r70619 | benjamin.peterson | 2009-03-26 15:49:40 -0500 (Thu, 26 Mar 2009) | 1 line

  fix naming
........
  r70620 | benjamin.peterson | 2009-03-26 16:10:30 -0500 (Thu, 26 Mar 2009) | 1 line

  fix incorrect auto-translation of TestSkipped -> unittest.SkipTest
........
  r70621 | benjamin.peterson | 2009-03-26 16:11:16 -0500 (Thu, 26 Mar 2009) | 1 line

  must pass argument to get expected behavior ;)
........
  r70623 | benjamin.peterson | 2009-03-26 16:30:10 -0500 (Thu, 26 Mar 2009) | 1 line

  add missing import
........
  r70624 | benjamin.peterson | 2009-03-26 16:30:54 -0500 (Thu, 26 Mar 2009) | 1 line

  ** is required here
........
  r70626 | benjamin.peterson | 2009-03-26 16:40:29 -0500 (Thu, 26 Mar 2009) | 1 line

  update email tests to use SkipTest
........
  r70627 | benjamin.peterson | 2009-03-26 16:44:43 -0500 (Thu, 26 Mar 2009) | 1 line

  fix another name
........
2009-03-28 21:42:05 +00:00
Neal Norwitz d153afea66 Remove unnecessary import 2008-12-07 22:42:03 +00:00
Hirokazu Yamamoto 54a1cc68a1 Issue #3812: Failed to build python if configure --without-threads.
Removed itertools usage from Lib/traceback.py, because itertools
is extension module, so maybe unavailable on build process.
(Lib/_dummy_thread.py uses Lib/traceback.py)

Reviewed by Amaury Forgeot d'Arc.
2008-09-09 17:55:11 +00:00
Benjamin Peterson e65282114e implement chained exception tracebacks
patch from Antoine Pitrou #3112
2008-07-15 15:32:09 +00:00
Georg Brandl c73728373c Remove function obsolete since Python 2.3 from traceback module. 2008-05-12 18:03:53 +00:00