Fix stream message handling in notebook kernel #1658
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WalkthroughThe message processing loop within the Changes
Sequence Diagram(s)sequenceDiagram
participant Client
participant JupyterKernelExecutor
participant Kernel
Client->>JupyterKernelExecutor: Request code execution
JupyterKernelExecutor->>Kernel: Send execute request
loop Until status: idle or timeout
Kernel-->>JupyterKernelExecutor: Output message (stream, execute_result, display_data, error, etc.)
JupyterKernelExecutor->>JupyterKernelExecutor: Accumulate message
end
Kernel-->>JupyterKernelExecutor: status: idle
JupyterKernelExecutor->>Client: Return all accumulated output messages
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Pull Request Overview
This PR fixes premature loop termination in the Jupyter kernel executor to ensure that all outputs are captured during code execution.
- Removed break statements for 'stream', 'execute_result', 'display_data', and 'error' message types to allow the loop to continue processing messages.
- Refactored conditions for handling 'execute_result' and 'display_data' messages.
Comments suppressed due to low confidence (1)
altimate_notebook_kernel.py:71
- Removing the break for 'stream' messages addresses premature termination, but consider verifying that an 'idle' status message will eventually be received to prevent a potential infinite loop under certain kernel conditions.
break
| @@ -88,12 +87,10 @@ def datetime_converter(o): | |||
| other_keys_exist = True | |||
|
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| # If no other keys exist, add the 'text/plain' value | |||
| if not other_keys_exist: | |||
| if not other_keys_exist and 'text/plain' in msg['content']['data']: | |||
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[nitpick] It would be beneficial to add a brief comment explaining the rationale behind checking for 'text/plain' in msg['content']['data'] to clarify that this condition intentionally filters messages with solely plain text output.
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Important
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1. altimate_notebook_kernel.py:69
- Draft comment:
Removed 'break' after handling stream messages. This change correctly prevents early termination so subsequent outputs are not missed. - Reason this comment was not posted:
Comment did not seem useful. Confidence is useful =0%<= threshold50%This comment is purely informative, praising the removal of abreakstatement. It doesn't provide any actionable feedback or suggestions for improvement.
2. altimate_notebook_kernel.py:77
- Draft comment:
Refactored condition for execute_result/display_data messages using the 'in' operator for better readability. - Reason this comment was not posted:
Comment did not seem useful. Confidence is useful =0%<= threshold50%This comment is purely informative and does not provide any actionable feedback or suggestions for improvement. It simply acknowledges a change that was made, which violates the rule against making purely informative comments.
3. altimate_notebook_kernel.py:90
- Draft comment:
Removed 'break' after appending execute_result/display_data output. This ensures that subsequent messages are captured as intended. - Reason this comment was not posted:
Comment did not seem useful. Confidence is useful =0%<= threshold50%This comment is purely informative, explaining the reason for removing abreakstatement. It does not provide a suggestion, ask for confirmation, or point out a potential issue. According to the rules, purely informative comments should be removed.
4. altimate_notebook_kernel.py:93
- Draft comment:
Removed 'break' in the error message block. Verify if continuing to process messages after an error is the intended behavior. - Reason this comment was not posted:
Comment did not seem useful. Confidence is useful =0%<= threshold50%The comment is asking the PR author to verify if the behavior is intended, which violates the rule against asking for confirmation of intention. It does not provide a specific suggestion or point out a clear issue with the code.
5. altimate_notebook_kernel.py:63
- Draft comment:
The 'datetime_converter' function is defined on every loop iteration but not used. Consider moving it outside the loop or removing it if unnecessary. - Reason this comment was not posted:
Comment was on unchanged code.
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Summary
Testing
python -m py_compile altimate_notebook_kernel.pyImportant
Fixes premature loop termination in
execute()ofJupyterKernelExecutorto capture all outputs inaltimate_notebook_kernel.py.execute()method ofJupyterKernelExecutorinaltimate_notebook_kernel.py.breakstatements forstream,execute_result,display_data, anderrormessage types.python -m py_compile altimate_notebook_kernel.py.This description was created by
for dc241bb. You can customize this summary. It will automatically update as commits are pushed.
Summary by CodeRabbit
Bug Fixes
Refactor