Commit Graph

118 Commits

Author SHA1 Message Date
Simon-Martin Schröder 46fc584b00
gh-87822: Make traceback module robust to exceptions from repr() of local values (GH-94691) 2022-07-11 10:14:15 +01:00
John Belmonte da717519ec
gh-93883: elide traceback indicators when possible (#93994)
* gh-93883: elide traceback indicators when possible

Elide traceback column indicators when the entire line of the
frame is implicated.  This reduces traceback length and draws
even more attention to the remaining (very relevant) indicators.

Example:
```
Traceback (most recent call last):
  File "query.py", line 99, in <module>
    bar()
  File "query.py", line 66, in bar
    foo()
  File "query.py", line 37, in foo
    magic_arithmetic('foo')
  File "query.py", line 18, in magic_arithmetic
    return add_counts(x) / 25
           ^^^^^^^^^^^^^
  File "query.py", line 24, in add_counts
    return 25 + query_user(user1) + query_user(user2)
                ^^^^^^^^^^^^^^^^^
  File "query.py", line 32, in query_user
    return 1 + query_count(db, response['a']['b']['c']['user'], retry=True)
                               ~~~~~~~~~~~~~~~~~~^^^^^
TypeError: 'NoneType' object is not subscriptable
```

Rather than going out of our way to provide indicator coverage
in every traceback test suite, the indicator test suite should
be responible for sufficient coverage (e.g. by adding a basic
exception group test to ensure that margin strings are covered).
2022-07-11 07:40:53 +01:00
Irit Katriel d4c4a76ed1
gh-89770: Implement PEP-678 - Exception notes (GH-31317) 2022-04-16 19:59:52 +01:00
Irit Katriel a82baed0e9
bpo-45615: Add missing test for printing traceback for non-exception. Fix traceback.py (GH-30091) 2022-01-02 09:34:03 +00:00
Irit Katriel 5bb7ef2768
bpo-45607: Make it possible to enrich exception displays via setting their __note__ field (GH-29880) 2021-12-03 22:01:15 +00:00
Irit Katriel 4dfae6f38e
bpo-45614: Fix traceback display for exceptions with invalid module name (GH-29726) 2021-11-27 22:00:10 +00:00
Irit Katriel 3509b26c91
bpo-45292: [PEP 654] Update traceback display code to work with exception groups (GH-29207) 2021-11-05 09:39:18 +00:00
Pablo Galindo Salgado fe0d9e22a5
bpo-45249: Fix caret location when end_offset is set to 0 (GH-28855) 2021-10-16 10:27:43 -07:00
Pablo Galindo Salgado 20f439b6b9
bpo-45249: Ensure the traceback module prints correctly syntax errors with ranges (GH-28575) 2021-09-27 21:59:06 +01:00
Irit Katriel 9e31b3952f
bpo-41031: Match C and Python code formatting of unprintable exceptions and exceptions in the __main__ module. (GH-28139) 2021-09-05 18:54:13 +03:00
Irit Katriel 0b58e863df
bpo-45075: distinguish between frame and FrameSummary in traceback mo… (GH-28112) 2021-09-03 22:39:23 +01:00
Irit Katriel 863154c929
bpo-31299: make it possible to filter out frames from tracebacks (GH-28067) 2021-08-31 21:42:08 +01:00
Batuhan Taskaya 3e235e0447
bpo-43950: support some multi-line expressions for PEP 657 (GH-27339)
This is basically something that I noticed up while fixing test runs for another issue. It is really common to have multiline calls, and when they fail the display is kind of weird since we omit the annotations. E.g;

```
 $ ./python t.py
Traceback (most recent call last):
  File "/home/isidentical/cpython/cpython/t.py", line 11, in <module>
    frame_1()
    ^^^^^^^^^
  File "/home/isidentical/cpython/cpython/t.py", line 5, in frame_1
    frame_2(              
  File "/home/isidentical/cpython/cpython/t.py", line 2, in frame_2
    return a / 0 / b / c
           ~~^~~
ZeroDivisionError: division by zero
```

This patch basically adds support for annotating the rest of the line, if the instruction covers multiple lines (start_line != end_line).

Automerge-Triggered-By: GH:isidentical
2021-07-25 15:01:44 -07:00
Batuhan Taskaya 4f5980a4f5
bpo-43950: support long lines in traceback.py (GH-27336) 2021-07-24 20:50:39 +03:00
Ammar Askar 8ce3008585
bpo-44569: Decouple frame formatting in traceback.py (GH-27038) 2021-07-16 13:21:16 +01:00
Batuhan Taskaya 919ad53751
bpo-43950: make BinOp specializations more reliable (GH-27126) 2021-07-16 00:38:11 +01:00
Batuhan Taskaya 1890dd235f
bpo-43950: Specialize tracebacks for subscripts/binary ops (GH-27037)
Co-authored-by: Ammar Askar <ammar@ammaraskar.com>
Co-authored-by: Pablo Galindo <pablogsal@gmail.com>
2021-07-12 20:32:33 +01:00
Filipe Laíns 91a8f8c16c
bpo-44446: support lineno being None in traceback.FrameSummary (GH-26781)
As of 088a15c49d, lineno is None instead
of -1 if there is no line number.

Signed-off-by: Filipe Laíns <lains@riseup.net>
2021-07-08 17:28:01 +01:00
Ammar Askar 5644c7b3ff
bpo-43950: Print columns in tracebacks (PEP 657) (GH-26958)
The traceback.c and traceback.py mechanisms now utilize the newly added code.co_positions and PyCode_Addr2Location
to print carets on the specific expressions involved in a traceback.

Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
Co-authored-by: Ammar Askar <ammar@ammaraskar.com>
Co-authored-by: Batuhan Taskaya <batuhanosmantaskaya@gmail.com>
2021-07-05 00:14:33 +01:00
Irit Katriel f73377d57c
bpo-43024: improve signature (in help, etc) for functions taking sent… (GH-24331)
…inel defaults
2021-06-17 09:14:30 -07:00
Irit Katriel 220dd80a26
bpo-33809: add the TracebackException.print() method (GH-24231) 2021-05-22 17:39:33 +01:00
Irit Katriel b798ab0693
bpo-43146: fix None-handling in single-arg traceback.print_exception(None) (GH-24629)
(The previous commit fixed print_exception(None, None, None).)
2021-02-23 09:43:04 -08:00
Irit Katriel 26f18b8540
bpo-43146: fix regression in traceback.print_exception(None) (GH-24463) 2021-02-23 06:58:47 -08:00
Irit Katriel 4c94d74152
bpo-42877: add the 'compact' param to TracebackException's __init__ (#24179)
Use it to reduce the time and memory taken up by several of traceback's module-level functions.
2021-01-14 18:45:02 -08:00
Irit Katriel 6dfd1734f5
bpo-42848: remove recursion from TracebackException (GH-24158) 2021-01-12 14:14:27 -08:00
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