Dennis Sweeney <sweeney.dennis...@gmail.com> added the comment:
### Simplified crasher
from weakref import ref
def f():
ref(lambda: 0, [])
f()
f()
########################
Running this in debug mode, I got a failed assertion at traceback.c,
line 746, `assert(source_line);`.
If that assertion is commented out, a null pointer is dereferenced in
_PyPegen_byte_offset_to_character_offset()
----------
nosy: +Dennis Sweeney
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue44719>
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