[dynamo] Better error for invalid @contextlib.contextmanager usage

[jansel]

Stack from ghstack (oldest at bottom):

• -> [dynamo] Better error for invalid @contextlib.contextmanager usage #156924

Fixes #156716

cc @voznesenskym @penguinwu @EikanWang @jgong5 @Guobing-Chen @XiaobingSuper @zhuhaozhe @blzheng @wenzhe-nrv @jiayisunx @chenyang78 @kadeng @chauhang @amjames

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/156924

• 📄 Preview Python docs built from this PR
• 📄 Preview C++ docs built from this PR
• ❓ Need help or want to give feedback on the CI? Visit the bot commands wiki or our office hours

Note: Links to docs will display an error until the docs builds have been completed.

❗ 1 Active SEVs

There are 1 currently active SEVs. If your PR is affected, please view them below:

• VolumeLimitExceeded Issue for linux.2xlarge and linux.4xlarge

✅ You can merge normally! (1 Unrelated Failure)

As of commit 550d5a4 with merge base 1eea2c4 ():

UNSTABLE - The following job is marked as unstable, possibly due to flakiness on trunk:

• pull / cuda12.8-py3.10-gcc9-sm75 / test (pr_time_benchmarks, 1, 1, linux.g4dn.metal.nvidia.gpu, unstable) (gh) (#153987)
  MISSING REGRESSION TEST

This comment was automatically generated by Dr. CI and updates every 15 minutes.

[jansel]

@pytorchbot merge

[pytorchmergebot]

Merge started

Your change will be merged once all checks pass (ETA 0-4 Hours).

Learn more about merging in the wiki.

Questions? Feedback? Please reach out to the PyTorch DevX Team

Advanced Debugging

Check the merge workflow status
here

[pytorchmergebot]

Merge failed

Reason: 3 mandatory check(s) failed. The first few are:

• pull / linux-jammy-py3.13-clang12 / test (dynamo_wrapped, 3, 3, linux.2xlarge)
• pull / linux-jammy-py3.13-clang12 / test (dynamo_wrapped, 2, 3, linux.2xlarge)
• pull / linux-jammy-py3.13-clang12 / test (dynamo_wrapped, 1, 3, linux.2xlarge)

Dig deeper by viewing the failures on hud

Details for Dev Infra team

Raised by workflow job

Failing merge rule: Core Maintainers

[jansel]

@pytorchbot merge -i

[pytorchmergebot]

Merge started

Your change will be merged while ignoring the following 7 checks: pull / linux-jammy-py3.13-clang12 / test (dynamo_wrapped, 3, 3, linux.2xlarge), pull / linux-jammy-py3.13-clang12 / test (dynamo_wrapped, 2, 3, linux.2xlarge), pull / linux-jammy-py3.13-clang12 / test (dynamo_wrapped, 1, 3, linux.2xlarge), pull / cuda12.8-py3.10-gcc9-sm75 / test (pr_time_benchmarks, 1, 1, linux.g4dn.metal.nvidia.gpu, unstable), pull / linux-jammy-py3.9-clang12 / test (dynamo_wrapped, 2, 3, linux.2xlarge), pull / linux-jammy-py3.9-clang12 / test (dynamo_wrapped, 1, 3, linux.2xlarge), pull / linux-jammy-py3.9-clang12 / test (dynamo_wrapped, 3, 3, linux.2xlarge)

Learn more about merging in the wiki.

Questions? Feedback? Please reach out to the PyTorch DevX Team

Advanced Debugging

Check the merge workflow status
here

[jansel]

@pytorchbot revert -m 'Likely same issue as #156963' -c ignoredsignal

[pytorchmergebot]

@pytorchbot successfully started a revert job. Check the current status here.
Questions? Feedback? Please reach out to the PyTorch DevX Team

[pytorchmergebot]

@jansel your PR has been successfully reverted.

[jansel]

@pytorchbot merge

[pytorchmergebot]

Merge started

Your change will be merged once all checks pass (ETA 0-4 Hours).

Learn more about merging in the wiki.

Questions? Feedback? Please reach out to the PyTorch DevX Team

Advanced Debugging

Check the merge workflow status
here

[pytorchmergebot]

Merge failed

Reason: 2 jobs have failed, first few of them are: trunk / win-vs2022-cpu-py3 / test (default, 2, 3, windows.4xlarge.nonephemeral), trunk / win-vs2022-cpu-py3 / test (default, 1, 3, windows.4xlarge.nonephemeral)

Details for Dev Infra team

Raised by workflow job

[jansel]

@pytorchbot merge

[pytorchmergebot]

Merge started

Your change will be merged once all checks pass (ETA 0-4 Hours).

Learn more about merging in the wiki.

Questions? Feedback? Please reach out to the PyTorch DevX Team

Advanced Debugging

Check the merge workflow status
here