Crash report

In a --with-pydebug build, run the following code:

$ cat ~/tmp/t.py
import ast
ast.parse("""
func(
    a=["unclosed], # Need a quote in this comment: "
    b=2,
)
""")
$ ./python ~/tmp/t.py

Error messages

python: Objects/call.c:324: _PyObject_Call: Assertion `!_PyErr_Occurred(tstate)' failed.
fish: Job 1, './python ~/tmp/t.py' terminated by signal SIGABRT (Abort)

(How do I obtain a core dump?)

I think the error happens inside this call:

What happened is that the _PyTokenizer_Get(p->tok, &new_token) call earlier also sets an error here.

Your environment

• CPython versions tested on: main branch at 5c19050, but this also happens since Python 3.10
• Operating system and architecture: Linux x86_64

Linked PRs

• gh-100050: Fix an assertion error when raising unclosed parenthesis errors in the tokenizer #100065
• [3.11] gh-100050: Fix an assertion error when raising unclosed parenthesis errors in the tokenizer (GH-100065) #100067
• [3.10] gh-100050: Fix an assertion error when raising unclosed parenthesis errors in the tokenizer (GH-100065) #100073