pytest: Assertion rewriting fails under Python 3.10.0a7+

Traceback (most recent call last):
  ...
  File "_pytest/assertion/rewrite.py", line 161, in exec_module
    source_stat, co = _rewrite_test(fn, self.config)
  File "_pytest/assertion/rewrite.py", line 356, in _rewrite_test
    co = compile(tree, fn_, "exec", dont_inherit=True)
TypeError: required field "lineno" missing from alias

full traceback

Traceback (most recent call last):
  File "/home/runner/.cache/hypothesis-build-runtimes/python-versions/3.10-dev/lib/python3.10/runpy.py", line 196, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "/home/runner/.cache/hypothesis-build-runtimes/python-versions/3.10-dev/lib/python3.10/runpy.py", line 86, in _run_code
    exec(code, run_globals)
  File "/home/runner/work/hypothesis/hypothesis/hypothesis-python/.tox/py310-full/lib/python3.10/site-packages/pytest/__main__.py", line 5, in <module>
    raise SystemExit(pytest.console_main())
  File "/home/runner/work/hypothesis/hypothesis/hypothesis-python/.tox/py310-full/lib/python3.10/site-packages/_pytest/config/__init__.py", line 185, in console_main
    code = main()
  File "/home/runner/work/hypothesis/hypothesis/hypothesis-python/.tox/py310-full/lib/python3.10/site-packages/_pytest/config/__init__.py", line 143, in main
    config = _prepareconfig(args, plugins)
  File "/home/runner/work/hypothesis/hypothesis/hypothesis-python/.tox/py310-full/lib/python3.10/site-packages/_pytest/config/__init__.py", line 318, in _prepareconfig
    config = pluginmanager.hook.pytest_cmdline_parse(
  File "/home/runner/work/hypothesis/hypothesis/hypothesis-python/.tox/py310-full/lib/python3.10/site-packages/pluggy/hooks.py", line 286, in __call__
    return self._hookexec(self, self.get_hookimpls(), kwargs)
  File "/home/runner/work/hypothesis/hypothesis/hypothesis-python/.tox/py310-full/lib/python3.10/site-packages/pluggy/manager.py", line 93, in _hookexec
    return self._inner_hookexec(hook, methods, kwargs)
  File "/home/runner/work/hypothesis/hypothesis/hypothesis-python/.tox/py310-full/lib/python3.10/site-packages/pluggy/manager.py", line 84, in <lambda>
    self._inner_hookexec = lambda hook, methods, kwargs: hook.multicall(
  File "/home/runner/work/hypothesis/hypothesis/hypothesis-python/.tox/py310-full/lib/python3.10/site-packages/pluggy/callers.py", line 203, in _multicall
    gen.send(outcome)
  File "/home/runner/work/hypothesis/hypothesis/hypothesis-python/.tox/py310-full/lib/python3.10/site-packages/_pytest/helpconfig.py", line 100, in pytest_cmdline_parse
    config: Config = outcome.get_result()
  File "/home/runner/work/hypothesis/hypothesis/hypothesis-python/.tox/py310-full/lib/python3.10/site-packages/pluggy/callers.py", line 80, in get_result
    raise ex[1].with_traceback(ex[2])
  File "/home/runner/work/hypothesis/hypothesis/hypothesis-python/.tox/py310-full/lib/python3.10/site-packages/pluggy/callers.py", line 187, in _multicall
    res = hook_impl.function(*args)
  File "/home/runner/work/hypothesis/hypothesis/hypothesis-python/.tox/py310-full/lib/python3.10/site-packages/_pytest/config/__init__.py", line 1003, in pytest_cmdline_parse
    self.parse(args)
  File "/home/runner/work/hypothesis/hypothesis/hypothesis-python/.tox/py310-full/lib/python3.10/site-packages/_pytest/config/__init__.py", line 1283, in parse
    self._preparse(args, addopts=addopts)
  File "/home/runner/work/hypothesis/hypothesis/hypothesis-python/.tox/py310-full/lib/python3.10/site-packages/_pytest/config/__init__.py", line 1168, in _preparse
    self.pluginmanager.consider_preparse(args, exclude_only=False)
  File "/home/runner/work/hypothesis/hypothesis/hypothesis-python/.tox/py310-full/lib/python3.10/site-packages/_pytest/config/__init__.py", line 635, in consider_preparse
    self.consider_pluginarg(parg)
  File "/home/runner/work/hypothesis/hypothesis/hypothesis-python/.tox/py310-full/lib/python3.10/site-packages/_pytest/config/__init__.py", line 660, in consider_pluginarg
    self.import_plugin(arg, consider_entry_points=True)
  File "/home/runner/work/hypothesis/hypothesis/hypothesis-python/.tox/py310-full/lib/python3.10/site-packages/_pytest/config/__init__.py", line 713, in import_plugin
    self.register(mod, modname)
  File "/home/runner/work/hypothesis/hypothesis/hypothesis-python/.tox/py310-full/lib/python3.10/site-packages/_pytest/config/__init__.py", line 443, in register
    self.consider_module(plugin)
  File "/home/runner/work/hypothesis/hypothesis/hypothesis-python/.tox/py310-full/lib/python3.10/site-packages/_pytest/config/__init__.py", line 669, in consider_module
    self._import_plugin_specs(getattr(mod, "pytest_plugins", []))
  File "/home/runner/work/hypothesis/hypothesis/hypothesis-python/.tox/py310-full/lib/python3.10/site-packages/_pytest/config/__init__.py", line 676, in _import_plugin_specs
    self.import_plugin(import_spec)
  File "/home/runner/work/hypothesis/hypothesis/hypothesis-python/.tox/py310-full/lib/python3.10/site-packages/_pytest/config/__init__.py", line 703, in import_plugin
    __import__(importspec)
  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 "/home/runner/work/hypothesis/hypothesis/hypothesis-python/.tox/py310-full/lib/python3.10/site-packages/_pytest/assertion/rewrite.py", line 161, in exec_module
    source_stat, co = _rewrite_test(fn, self.config)
  File "/home/runner/work/hypothesis/hypothesis/hypothesis-python/.tox/py310-full/lib/python3.10/site-packages/_pytest/assertion/rewrite.py", line 356, in _rewrite_test
    co = compile(tree, fn_, "exec", dont_inherit=True)
TypeError: required field "lineno" missing from alias

I discovered this in the Hypothesis CI, with Pytest 6.2.3 on Ubuntu and python3.10-dev (alpha07) from pyenv. Unfortunately I don’t have a smaller reproducing example than that, since my only copy of alpha07 is on that CI server.

About this issue

Original URL
State: closed
Created 3 years ago
Reactions: 2
Comments: 15 (12 by maintainers)

Links to this issue

Fix CI issues by updating pytest+black (!260) · Merge requests · Thorgate - public projects / Django project template · GitLab

Commits related to this issue

Fix assertion rewriting on Python 3.10 Fixes https://github.com/pytest-dev/pytest/issues/8539 This seems to have been the result of https://bugs.python.org/issue43798 — committed to hauntsaninja/pytest by deleted user 3 years ago
Fix assertion rewriting on Python 3.10 Fixes https://github.com/pytest-dev/pytest/issues/8539 This seems to have been the result of https://bugs.python.org/issue43798 — committed to hauntsaninja/pytest by deleted user 3 years ago
Fix assertion rewriting on Python 3.10 Fixes https://github.com/pytest-dev/pytest/issues/8539 This seems to have been the result of https://bugs.python.org/issue43798 — committed to hauntsaninja/pytest by deleted user 3 years ago
ci: Pin Python 3.10 to Alpha 7 See https://github.com/actions/setup-python/issues/207 pytest isn't ready yet: https://github.com/pytest-dev/pytest/issues/8539 — committed to qutebrowser/qutebrowser by The-Compiler 3 years ago
ci: Pin Python 3.10 to Alpha 7 See https://github.com/actions/setup-python/issues/207 pytest isn't ready yet: https://github.com/pytest-dev/pytest/issues/8539 (cherry picked from commit 0c1414c6aaa... — committed to qutebrowser/qutebrowser by The-Compiler 3 years ago
Merge #73 73: Update pytest to 6.2.4 r=aragilar a=pyup-bot This PR updates [pytest](https://pypi.org/project/pytest) from **6.2.3** to **6.2.4**. <details> <summary>Changelog</summary> ... — committed to aragilar/stringtopy by bors[bot] 3 years ago
Merge #211 #214 211: Update astroid to 2.5.6 r=YourLocalBlake a=pyup-bot This PR updates [astroid](https://pypi.org/project/astroid) from **2.5.2** to **2.5.6**. <details> <summary>Changelog</... — committed to pykoala/koala by bors[bot] 3 years ago
Merge #19 #20 19: Update sphinx_rtd_theme to 0.5.2 r=aragilar a=pyup-bot This PR updates [sphinx_rtd_theme](https://pypi.org/project/sphinx_rtd_theme) from **0.5.0** to **0.5.2**. *The bot wasn'... — committed to aragilar/pytest-info-collector by bors[bot] 3 years ago
Merge #20 20: Update pytest to 6.2.4 r=aragilar a=pyup-bot This PR updates [pytest](https://pypi.org/project/pytest) from **6.1.1** to **6.2.4**. <details> <summary>Changelog</summary> ... — committed to aragilar/pytest-info-collector by bors[bot] 3 years ago
Merge #20 #23 20: Update pytest to 6.2.4 r=aragilar a=pyup-bot This PR updates [pytest](https://pypi.org/project/pytest) from **6.1.1** to **6.2.4**. <details> <summary>Changelog</summary> ... — committed to aragilar/pytest-info-collector by bors[bot] 3 years ago
Add workaround pytest See: https://github.com/pytest-dev/pytest/issues/8539 — committed to sergeyklay/gstore by sergeyklay 3 years ago
Fix workaround pytest See: https://github.com/pytest-dev/pytest/issues/8539 — committed to sergeyklay/gstore by sergeyklay 3 years ago
Use pytest>=6.2.4 See: https://github.com/pytest-dev/pytest/issues/8539 — committed to sergeyklay/gstore by sergeyklay 3 years ago
Add workaround pytest See: https://github.com/pytest-dev/pytest/issues/8539 — committed to sergeyklay/gstore by sergeyklay 3 years ago
Fix workaround pytest See: https://github.com/pytest-dev/pytest/issues/8539 — committed to sergeyklay/gstore by sergeyklay 3 years ago
Use pytest>=6.2.4 See: https://github.com/pytest-dev/pytest/issues/8539 — committed to sergeyklay/gstore by sergeyklay 3 years ago
Merge #7 #8 7: Pin sphinx_rtd_theme to latest version 0.5.2 r=aragilar a=pyup-bot This PR pins [sphinx_rtd_theme](https://pypi.org/project/sphinx_rtd_theme) to the latest release **0.5.2**. *The... — committed to aragilar/spaceplot by bors[bot] 3 years ago
Merge #18 #20 18: Pin pytest to latest version 6.2.4 r=aragilar a=pyup-bot This PR pins [pytest](https://pypi.org/project/pytest) to the latest release **6.2.4**. <details> <summary>Changelog<... — committed to aragilar/spaceplot by bors[bot] 3 years ago
Merge #16 16: Pin pytest to latest version 6.2.4 r=aragilar a=pyup-bot This PR pins [pytest](https://pypi.org/project/pytest) to the latest release **6.2.4**. <details> <summary>Changelog</sum... — committed to aragilar/venv_tools by bors[bot] 3 years ago
api: pytest 6.2.5じゃないとPython 3.10でテストできないのでバージョン上げる https://github.com/pytest-dev/pytest/issues/8539 — committed to kmc-jp/GodUploader-graphql by utgwkk 3 years ago

Most upvoted comments

upgrade to 6.2.4 to get the fix!

asottile on May 4, 2021

Good news, the GitHub Actions weirdness has been resolved and latest pytest is working with 3.10-dev (example build from today). 🎈

What happened:

Something caused a premature Python-3.10.0b1.tgz to be released on the Python FTP servers (now removed): https://www.python.org/ftp/python/3.10.0/Python-3.10.0b1.tgz.

GitHub Actions’ automation integrated this into 3.10-dev. This has also been removed and 3.10-dev now points to the latest 3.10 alpha, in advance of next week’s real 3.10 beta release.

More details:

hugovk on Apr 30, 2021

Due to the GitHub Actions weirdness (https://github.com/pytest-dev/pytest/pull/8540#issuecomment-822330273), is there a plan to release pytest with a fix before the real 3.10 beta (due 2021-05-03), or do you recommend we pin 3.10 to an alpha on GHA? Thank you!

hugovk on Apr 27, 2021

Taking the freedom to pin this issue due to https://github.com/pytest-dev/pytest/pull/8540#issuecomment-822330273

The-Compiler on Apr 19, 2021

I’ve renamed the issue a bit to be less confusing.

hroncok on Apr 15, 2021

as first enhancement assertion rewrite should raise a ImportError that tells the file at least

RonnyPfannschmidt on Apr 11, 2021

I’m still experiencing this issue in Python 3.10.4 and pytest 7.1.2

AlirezaTheH on May 30, 2022

It’s great that Actions has fixed their end of this (🎉), but unless we release a new version of pytest with #8540 soon we’ll be broken again when the real 3.10beta1 is released 😅

Zac-HD on May 1, 2021

I’m OK with a prerelease, but we actually haven’t nailed down if the next release will be 7.0 or 6.3. We have a discussion about this: https://github.com/orgs/pytest-dev/teams/contributors/discussions/2

nicoddemus on May 4, 2021

beta1 is out. can we please get (at least a pre-release) with this fix out?

hroncok on May 4, 2021