Pytest issues >> TypeError: required field "lineno" missing from alias

[hvithval]

I'm working on a repository that is quite olds, and from nothing I found myself with this error:

$ make test
pylint src/*
------------------------------------
Your code has been rated at 10.00/10
pytest tests/
Traceback (most recent call last):
  File "/usr/local/bin/pytest", line 8, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.10/site-packages/_pytest/config/__init__.py", line 55, in main
    config = _prepareconfig(args, plugins)
  File "/usr/local/lib/python3.10/site-packages/_pytest/config/__init__.py", line 199, in _prepareconfig
    return pluginmanager.hook.pytest_cmdline_parse(
  File "/usr/local/lib/python3.10/site-packages/pluggy/hooks.py", line 286, in __call__
    return self._hookexec(self, self.get_hookimpls(), kwargs)
  File "/usr/local/lib/python3.10/site-packages/pluggy/manager.py", line 92, in _hookexec
    return self._inner_hookexec(hook, methods, kwargs)
  File "/usr/local/lib/python3.10/site-packages/pluggy/manager.py", line 83, in <lambda>
    self._inner_hookexec = lambda hook, methods, kwargs: hook.multicall(
  File "/usr/local/lib/python3.10/site-packages/pluggy/callers.py", line 203, in _multicall
    gen.send(outcome)
  File "/usr/local/lib/python3.10/site-packages/_pytest/helpconfig.py", line 89, in pytest_cmdline_parse
    config = outcome.get_result()
  File "/usr/local/lib/python3.10/site-packages/pluggy/callers.py", line 80, in get_result
    raise ex[1].with_traceback(ex[2])
  File "/usr/local/lib/python3.10/site-packages/pluggy/callers.py", line 187, in _multicall
    res = hook_impl.function(*args)
  File "/usr/local/lib/python3.10/site-packages/_pytest/config/__init__.py", line 661, in pytest_cmdline_parse
    self.parse(args)
  File "/usr/local/lib/python3.10/site-packages/_pytest/config/__init__.py", line 869, in parse
    self._preparse(args, addopts=addopts)
  File "/usr/local/lib/python3.10/site-packages/_pytest/config/__init__.py", line 815, in _preparse
    self.pluginmanager.load_setuptools_entrypoints("pytest11")
  File "/usr/local/lib/python3.10/site-packages/pluggy/manager.py", line 297, in load_setuptools_entrypoints
    plugin = ep.load()
  File "/usr/local/lib/python3.10/site-packages/importlib_metadata/__init__.py", line 194, in load
    module = import_module(match.group('module'))
  File "/usr/local/lib/python3.10/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
  File "/usr/local/lib/python3.10/site-packages/_pytest/assertion/rewrite.py", line 140, in exec_module
    source_stat, co = _rewrite_test(fn, self.config)
  File "/usr/local/lib/python3.10/site-packages/_pytest/assertion/rewrite.py", line 291, in _rewrite_test
    co = compile(tree, fn, "exec", dont_inherit=True)
TypeError: required field "lineno" missing from alias
make: *** [Makefile:22: test] Error 1
Cleaning up file based variables
00:00
ERROR: Job failed: exit code 1

It's important to mention that we are using python 3.8
I've updated pytest to v5.0.0.

I was wondering if others had this same issue, again from nothing, and how could I debug and confirm the error comes from our side or there is something going on.

I found some errors and bugs from more recent versions of python with similar issues/errors.

[nicoddemus]

Hmm strange, you say you are using python 3.8, however the traceback points to python3.10:

 File "/usr/local/lib/python3.10/site-packages/_pytest/assertion/rewrite.py"

Are you setting up a virtualenv?

[hvithval]

you are right... my Dockerfile is using the python 3.8 image but we are using the gitlab runner which I assume now uses python 3.10...
Apologies, my mistake not seeing that. Still, the issue remains.
Is it possible this issue/error could be related to the bug that was found on April?
#8546
and
hylang/hy#2061. (this one is related to package HY, which I'm not using but still, similar.)

[nicoddemus]

Is it possible this issue/error could be related to the bug that was found on April?

Very likely, in which case you need to upgrade to pytest 6.2.5.

[nicoddemus]

Cool!

Just a heads up, by using Python 3.10 you will probably need to update a good number of packages (that last traceback suggests you might need to update jinja2).

[hvithval]

ok, got it to work, this i the full list of versions updates:
attrs
boto3
botocore
click
flask
itsdangerous
Jinja2
MarkupSafe
pluggy
py
pytest
requests
s3transfer
typed-ast
urllib3
Werkzeug

[siminap97]

why isn't the 6.2.5 version available anymore?

[The-Compiler]

@siminap97 What makes you claim that?

[nicoddemus]

Yeah, seems to be there: https://pypi.org/project/pytest/6.2.5/

[lambotik]

Столкнулся с похожей проблемой:
PS C:\Users\Дима\PycharmProjects\GITS\Final> pytest -v --tb=line --language=en -m need_review
Traceback (most recent call last):
File "C:\Users\Дима\Python\lib\runpy.py", line 196, in _run_module_as_main
return run_code(code, main_globals, None,
File "C:\Users\Дима\Python\lib\runpy.py", line 86, in run_code
exec(code, run_globals)
File "C:\Users\Дима\Python\Scripts\pytest.exe_main.py", line 7, in
File "C:\Users\Дима\Python\lib\site-packages_pytest\config_init.py", line 58, in main
config = prepareconfig(args, plugins)
File "C:\Users\Дима\Python\lib\site-packages_pytest\config_init.py", line 207, in _prepareconfig
return pluginmanager.hook.pytest_cmdline_parse(
File "C:\Users\Дима\Python\lib\site-packages\pluggy\hooks.py", line 286, in call
return self._hookexec(self, self.get_hookimpls(), kwargs)
File "C:\Users\Дима\Python\lib\site-packages\pluggy\manager.py", line 93, in _hookexec
return self._inner_hookexec(hook, methods, kwargs)
File "C:\Users\Дима\Python\lib\site-packages\pluggy\manager.py", line 84, in
self.inner_hookexec = lambda hook, methods, kwargs: hook.multicall(
File "C:\Users\Дима\Python\lib\site-packages\pluggy\callers.py", line 203, in multicall
gen.send(outcome)
File "C:\Users\Дима\Python\lib\site-packages_pytest\helpconfig.py", line 89, in pytest_cmdline_parse
config = outcome.get_result()
File "C:\Users\Дима\Python\lib\site-packages\pluggy\callers.py", line 80, in get_result
raise ex[1].with_traceback(ex[2])
File "C:\Users\Дима\Python\lib\site-packages\pluggy\callers.py", line 187, in multicall
res = hook_impl.function(*args)
File "C:\Users\Дима\Python\lib\site-packages_pytest\config_init.py", line 716, in pytest_cmdline_parse
self.parse(args)
File "C:\Users\Дима\Python\lib\site-packages_pytest\config_init.py", line 924, in parse
self.preparse(args, addopts=addopts)
File "C:\Users\Дима\Python\lib\site-packages_pytest\config_init.py", line 870, in preparse
self.pluginmanager.load_setuptools_entrypoints("pytest11")
File "C:\Users\Дима\Python\lib\site-packages\pluggy\manager.py", line 299, in load_setuptools_entrypoints
plugin = ep.load()
File "C:\Users\Дима\Python\lib\importlib\metadata_init.py", line 171, in load
module = import_module(match.group('module'))
File "C:\Users\Дима\Python\lib\importlib_init.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "", line 1050, in _gcd_import
File "", line 1027, in _find_and_load
File "", line 1006, in _find_and_load_unlocked
File "", line 688, in _load_unlocked
File "C:\Users\Дима\Python\lib\site-packages_pytest\assertion\rewrite.py", line 131, in exec_module
source_stat, co = _rewrite_test(fn, self.config)
File "C:\Users\Дима\Python\lib\site-packages_pytest\assertion\rewrite.py", line 282, in _rewrite_test
co = compile(tree, fn, "exec", dont_inherit=True)
TypeError: required field "lineno" missing from alias
Подскажите какое было найдено решение?

[MahsaSeifikar]

The same error with python 3.10.0 + pytest 7.2.2

TypeError: required field "lineno" missing from alias

[Subramanian-R-Needl]

Same error with python 3.10.9 & pytest 7.3.1
TypeError: required field "lineno" missing from alias

[The-Compiler]

@MahsaSeifikar @Subramanian-R-Needl This issue has been fixed ages ago, you're probably not actually running the pytest version you think you are running. Nobody will be able to help you with zero information. Consider opening a new discussion with the full output you're getting.

[serbrio]

deactivate/activate venv helped in my case

[sigmarion1]

deactivate/activate venv helped in my case

@serbrio Deactivating and reactivating the virtual environment solved the issue for me. Thank you!