ImportError: cannot import name 'MojoFile' from 'austin.format.mojo

[clin1234]

While attempting to run tests on https://github.com/clin1234/echion/tree/315, I got this output:

(venv) @clin1234 ➜ /workspaces/echion (315) $ pytest --cov=echion --cov-report=term-missing --cov-report=xml
================================================================================================ test session starts ================================================================================================
platform linux -- Python 3.15.0a1, pytest-9.0.0, pluggy-1.6.0
rootdir: /workspaces/echion
configfile: pyproject.toml
plugins: cov-7.0.0
collected 0 items / 12 errors                                                                                                                                                                                       

====================================================================================================== ERRORS =======================================================================================================
______________________________________________________________________________________ ERROR collecting tests/test_asyncio.py _______________________________________________________________________________________
ImportError while importing test module '/workspaces/echion/tests/test_asyncio.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/usr/lib/python3.15/importlib/__init__.py:88: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
tests/test_asyncio.py:3: in <module>
    from tests.utils import PY
tests/utils.py:15: in <module>
    from austin.format.mojo import MojoFile
E   ImportError: cannot import name 'MojoFile' from 'austin.format.mojo' (/workspaces/echion/venv/lib/python3.15t/site-packages/austin/format/mojo.py)
______________________________________________________________________________ ERROR collecting tests/test_asyncio_context_manager.py _______________________________________________________________________________
ImportError while importing test module '/workspaces/echion/tests/test_asyncio_context_manager.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/usr/lib/python3.15/importlib/__init__.py:88: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
tests/test_asyncio_context_manager.py:3: in <module>
    from tests.utils import PY, DataSummary, run_target
tests/utils.py:15: in <module>
    from austin.format.mojo import MojoFile
E   ImportError: cannot import name 'MojoFile' from 'austin.format.mojo' (/workspaces/echion/venv/lib/python3.15t/site-packages/austin/format/mojo.py)
_________________________________________________________________________________ ERROR collecting tests/test_asyncio_coroutines.py _________________________________________________________________________________
ImportError while importing test module '/workspaces/echion/tests/test_asyncio_coroutines.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/usr/lib/python3.15/importlib/__init__.py:88: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
tests/test_asyncio_coroutines.py:3: in <module>
    from tests.utils import PY, DataSummary, run_target
tests/utils.py:15: in <module>
    from austin.format.mojo import MojoFile
E   ImportError: cannot import name 'MojoFile' from 'austin.format.mojo' (/workspaces/echion/venv/lib/python3.15t/site-packages/austin/format/mojo.py)
__________________________________________________________________________________ ERROR collecting tests/test_asyncio_deadlock.py __________________________________________________________________________________
ImportError while importing test module '/workspaces/echion/tests/test_asyncio_deadlock.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/usr/lib/python3.15/importlib/__init__.py:88: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
tests/test_asyncio_deadlock.py:1: in <module>
    from tests.utils import run_target
tests/utils.py:15: in <module>
    from austin.format.mojo import MojoFile
E   ImportError: cannot import name 'MojoFile' from 'austin.format.mojo' (/workspaces/echion/venv/lib/python3.15t/site-packages/austin/format/mojo.py)
__________________________________________________________________________________ ERROR collecting tests/test_asyncio_executor.py __________________________________________________________________________________
ImportError while importing test module '/workspaces/echion/tests/test_asyncio_executor.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/usr/lib/python3.15/importlib/__init__.py:88: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
tests/test_asyncio_executor.py:1: in <module>
    from tests.utils import PY, DataSummary, run_target
tests/utils.py:15: in <module>
    from austin.format.mojo import MojoFile
E   ImportError: cannot import name 'MojoFile' from 'austin.format.mojo' (/workspaces/echion/venv/lib/python3.15t/site-packages/austin/format/mojo.py)
______________________________________________________________________________________ ERROR collecting tests/test_cpu_data.py ______________________________________________________________________________________
ImportError while importing test module '/workspaces/echion/tests/test_cpu_data.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/usr/lib/python3.15/importlib/__init__.py:88: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
tests/test_cpu_data.py:3: in <module>
    from tests.utils import PY
tests/utils.py:15: in <module>
    from austin.format.mojo import MojoFile
E   ImportError: cannot import name 'MojoFile' from 'austin.format.mojo' (/workspaces/echion/venv/lib/python3.15t/site-packages/austin/format/mojo.py)
_______________________________________________________________________________________ ERROR collecting tests/test_echion.py _______________________________________________________________________________________
ImportError while importing test module '/workspaces/echion/tests/test_echion.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/usr/lib/python3.15/importlib/__init__.py:88: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
tests/test_echion.py:1: in <module>
    from tests.utils import run_target
tests/utils.py:15: in <module>
    from austin.format.mojo import MojoFile
E   ImportError: cannot import name 'MojoFile' from 'austin.format.mojo' (/workspaces/echion/venv/lib/python3.15t/site-packages/austin/format/mojo.py)
_____________________________________________________________________________________ ERROR collecting tests/test_generators.py _____________________________________________________________________________________
ImportError while importing test module '/workspaces/echion/tests/test_generators.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/usr/lib/python3.15/importlib/__init__.py:88: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
tests/test_generators.py:1: in <module>
    from tests.utils import PY, DataSummary, run_target
tests/utils.py:15: in <module>
    from austin.format.mojo import MojoFile
E   ImportError: cannot import name 'MojoFile' from 'austin.format.mojo' (/workspaces/echion/venv/lib/python3.15t/site-packages/austin/format/mojo.py)
_______________________________________________________________________________________ ERROR collecting tests/test_gevent.py _______________________________________________________________________________________
ImportError while importing test module '/workspaces/echion/tests/test_gevent.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/usr/lib/python3.15/importlib/__init__.py:88: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
tests/test_gevent.py:5: in <module>
    from tests.utils import PY, DataSummary, run_target
tests/utils.py:15: in <module>
    from austin.format.mojo import MojoFile
E   ImportError: cannot import name 'MojoFile' from 'austin.format.mojo' (/workspaces/echion/venv/lib/python3.15t/site-packages/austin/format/mojo.py)
_______________________________________________________________________________________ ERROR collecting tests/test_memory.py _______________________________________________________________________________________
ImportError while importing test module '/workspaces/echion/tests/test_memory.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/usr/lib/python3.15/importlib/__init__.py:88: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
tests/test_memory.py:3: in <module>
    from tests.utils import DataSummary, run_target
tests/utils.py:15: in <module>
    from austin.format.mojo import MojoFile
E   ImportError: cannot import name 'MojoFile' from 'austin.format.mojo' (/workspaces/echion/venv/lib/python3.15t/site-packages/austin/format/mojo.py)
_____________________________________________________________________________________ ERROR collecting tests/test_wall_data.py ______________________________________________________________________________________
ImportError while importing test module '/workspaces/echion/tests/test_wall_data.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/usr/lib/python3.15/importlib/__init__.py:88: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
tests/test_wall_data.py:3: in <module>
    from tests.utils import PY
tests/utils.py:15: in <module>
    from austin.format.mojo import MojoFile
E   ImportError: cannot import name 'MojoFile' from 'austin.format.mojo' (/workspaces/echion/venv/lib/python3.15t/site-packages/austin/format/mojo.py)
_______________________________________________________________________________________ ERROR collecting tests/test_where.py ________________________________________________________________________________________
ImportError while importing test module '/workspaces/echion/tests/test_where.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/usr/lib/python3.15/importlib/__init__.py:88: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
tests/test_where.py:9: in <module>
    from tests.utils import requires_sudo
tests/utils.py:15: in <module>
    from austin.format.mojo import MojoFile
E   ImportError: cannot import name 'MojoFile' from 'austin.format.mojo' (/workspaces/echion/venv/lib/python3.15t/site-packages/austin/format/mojo.py)
============================================================================================== short test summary info ==============================================================================================
ERROR tests/test_asyncio.py
ERROR tests/test_asyncio_context_manager.py
ERROR tests/test_asyncio_coroutines.py
ERROR tests/test_asyncio_deadlock.py
ERROR tests/test_asyncio_executor.py
ERROR tests/test_cpu_data.py
ERROR tests/test_echion.py
ERROR tests/test_generators.py
ERROR tests/test_gevent.py
ERROR tests/test_memory.py
ERROR tests/test_wall_data.py
ERROR tests/test_where.py
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Interrupted: 12 errors during collection !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
================================================================================================ 12 errors in 0.38s ================================================================================================

[P403n1x87]

Was austin-python upgraded to the latest version by any chance? The echion test suite depends on version 1, and version 2 introduces a few breaking changes.

[clin1234]

Was austin-python upgraded to the latest version by any chance? The echion test suite depends on version 1, and version 2 introduces a few breaking changes.

Was upgraded, reverted back to 1.7