Add Transform Python quickstart sample scripts - #9
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Add extract_quickstart.py (partition + structured data extraction) and transform_quickstart.py (partition only), matching the scripts shown in the Python quickstart page.
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All reported issues were addressed across 2 files
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The script only runs a Partitioner node, not a full transform pipeline. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Addresses cubic-dev-ai review feedback on PR #9: leaving these open through polling and download risks exhausting file descriptors on directories with many input files. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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0 issues found across 2 files (changes from recent commits).
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August 22, 2026 14:04
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Summary
transform/sample-code/extract_quickstart.py— partitions a file and extracts structured data with anExtractornodetransform/sample-code/partition_quickstart.py— partitions a file only, no structured extractionNote:
cubic-dev-ai (automated review bot) flagged that both scripts open a file handle for every file in
INPUT_DIRbut never close them.The fix wraps the
create_jobcall in try/finally and closes every file handle in the finally block, so cleanup runs whether the call succeeds or raises.I'm implementing the suggested fix because quickstart code like this may get copied into production pipelines, where a directory with thousands of files could hit the OS's open-file-descriptor limit and crash.
Retested both scripts end to end after the update. Both completed and output saved with no errors.
Test plan
🤖 Generated with Claude Code