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Asyncio debugging tools no longer work (ps and pstree) #143952

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@johnslavik

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@johnslavik
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Bug report

Bug description:

Since GH-142394 the asyncio debugging tools no longer work at all:

❯ ./python t.py
^Z
[1]+  Stopped                 ./python t.py

❯ jobs -l
[1]+ 873785 Stopped                 ./python t.py

❯ ./python -m asyncio ps 873785 |& tail -n 10
  File "/home/bswck/Python/cpython/main/Lib/asyncio/tools.py", line 180, in build_task_table
    id2name, _, _ = _index(result)
                    ~~~~~~^^^^^^^^
  File "/home/bswck/Python/cpython/main/Lib/asyncio/tools.py", line 49, in _index
    internal_stack = [_format_stack_entry(frame) for frame in call_stack]
                      ~~~~~~~~~~~~~~~~~~~^^^^^^^
  File "/home/bswck/Python/cpython/main/Lib/asyncio/tools.py", line 30, in _format_stack_entry
    if elem.lineno == 0 and elem.filename == "":
       ^^^^^^^^^^^
AttributeError: '_remote_debugging.FrameInfo' object has no attribute 'lineno'

❯ ./python -m asyncio pstree 873785 |& tail -n 10
  File "/home/bswck/Python/cpython/main/Lib/asyncio/tools.py", line 155, in build_async_tree
    id2name, awaits, task_stacks = _index(result)
                                   ~~~~~~^^^^^^^^
  File "/home/bswck/Python/cpython/main/Lib/asyncio/tools.py", line 49, in _index
    internal_stack = [_format_stack_entry(frame) for frame in call_stack]
                      ~~~~~~~~~~~~~~~~~~~^^^^^^^
  File "/home/bswck/Python/cpython/main/Lib/asyncio/tools.py", line 30, in _format_stack_entry
    if elem.lineno == 0 and elem.filename == "":
       ^^^^^^^^^^^
AttributeError: '_remote_debugging.FrameInfo' object has no attribute 'lineno'

CPython versions tested on:

CPython main branch

Operating systems tested on:

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    3.15pre-release feature fixes, bugs and security fixespre-release feature fixes, bugs and security fixesstdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directorytopic-asynciotype-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error
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