open-telemetry / open-telemetry/opentelemetry-python
Object of type "None" is not subscriptable
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bug
- Dominant language
- Python
- Stars
- 2.6k
- Forks
- 1k
- Avg merge
- 4d 15h
- Merged PRs (30d)
- 19
Description
Describe your environment
sdk 1.32.1
What happened?
errors in vscode/pyright with
Object of type "None" is not subscriptablePylance[reportOptionalSubscript](https://github.com/microsoft/pyright/blob/main/docs/configuration.md#reportOptionalSubscript)
Steps to Reproduce
print(span.attributes["name"])
Expected Result
No type error because span.attributes can never be None.
Actual Result
Object of type "None" is not subscriptablePylance[reportOptionalSubscript](https://github.com/microsoft/pyright/blob/main/docs/configuration.md#reportOptionalSubscript)
Additional context
No response
Would you like to implement a fix?
None
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by locating the type definition for span.attributes in the Python SDK and reproduce the reported access with Pyright or Pylance. Confirm that the annotation reflects attributes as non-None so the shown subscription produces no optional-subscript error.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- observability-sre
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100