New submission from Florian Bruhin <python....@the-compiler.org>:
After upgrading to 3.10a5, calling logging.exception("test") results in:
--- Logging error ---
Traceback (most recent call last):
File "/usr/lib/python3.10/logging/__init__.py", line 1094, in emit
msg = self.format(record)
File "/usr/lib/python3.10/logging/__init__.py", line 938, in format
return fmt.format(record)
File "/usr/lib/python3.10/logging/__init__.py", line 682, in format
record.exc_text = self.formatException(record.exc_info)
File "/usr/lib/python3.10/logging/__init__.py", line 632, in
formatException
traceback.print_exception(ei[0], ei[1], tb, None, sio)
File "/usr/lib/python3.10/traceback.py", line 113, in print_exception
te = TracebackException(type(value), value, tb, limit=limit,
compact=True)
File "/usr/lib/python3.10/traceback.py", line 531, in __init__
need_context = cause is None and not e.__suppress_context__
AttributeError: 'NoneType' object has no attribute '__suppress_context__'
That method is documented as "This function should only be called from an
exception handler.", but the same also happens when e.g. calling
traceback.print_exc() (without a current exception) or
traceback.print_exception(None, None, None). Both worked fine before 3.10 Alpha
5, the code seems to do None-checks in other places, and typeshed also marks
those arguments as Optional.
This seems to have been introduced in
https://github.com/python/cpython/pull/24179 for bpo-42877.
----------
components: Library (Lib)
messages: 386562
nosy: The Compiler, iritkatriel, vinay.sajip
priority: normal
severity: normal
status: open
title: 3.10a5 regression: AttributeError: 'NoneType' object has no attribute
'__suppress_context__' in traceback.py
type: behavior
versions: Python 3.10
_______________________________________
Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue43146>
_______________________________________
_______________________________________________
Python-bugs-list mailing list
Unsubscribe:
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
