Closed
Description
Bug report
Take the following piece of code:
import sys, traceback
try:
ｗｉｄｔｈ
except:
_, _, tb = sys.exc_info()
tblist = traceback.extract_tb(tb)
print(traceback.format_list(tblist))With Python 3.10 and earlier versions, executing a file with this code produces:
[' File "/tmp/test.py", line 3, in <module>\n ｗｉｄｔｈ\n']
With Python 3.11, a UnicodeDecodeError is raised instead:
Traceback (most recent call last):
File "/tmp/test.py", line 9, in <module>
print(traceback.format_list(tblist))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.11/traceback.py", line 41, in format_list
return StackSummary.from_list(extracted_list).format()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.11/traceback.py", line 531, in format
formatted_frame = self.format_frame_summary(frame_summary)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.11/traceback.py", line 478, in format_frame_summary
colno = _byte_offset_to_character_offset(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.11/traceback.py", line 566, in _byte_offset_to_character_offset
return len(as_utf8[:offset + 1].decode("utf-8"))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xef in position 4: unexpected end of data
Your environment
- CPython versions tested on: 3.10.8 and 3.11.0
- Operating system and architecture: Debian unstable, amd64