traceback shows wrong source code in basic REPL when PYTHONSTARTUP is set #137576
Description
Bug report
Bug description:
Start python with the basic repl and a PYTHONSTARTUP file
export PYTHON_BASIC_REPL=1; echo 'import math' > /tmp/foo.py; export PYTHONSTARTUP="/tmp/foo.py"; pythontype 1/0 and the traceback shows
Python 3.13.5 | packaged by Anaconda, Inc. | (main, Jun 12 2025, 16:09:02) [GCC 11.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> 1/0
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
import math
^^^
ZeroDivisionError: division by zero
>>> Expected behavior (i.e. export PYTHON_BASIC_REPL=1; unset PYTHONSTARTUP; python):
>>> 1/0
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
1/0
~^~
ZeroDivisionError: division by zero
>>>CPython versions tested on:
3.13
Operating systems tested on:
Linux