GeezerVison is showing github.com — Update `csv.py` from 3.13.5 by ShaharNaveh · Pull Request #6035 · RustPython/RustPython
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ShaharNaveh
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Jul 25, 2025
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edited by coderabbitai
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Summary by CodeRabbit
- Refactor
- Improved internal handling of CSV reader iteration for better code clarity. No changes to user-facing behavior.
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coderabbitai
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Jul 25, 2025
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edited
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Walkthrough
The code updates the IterNext implementation for the Reader struct in csv.rs by replacing a manual match on the iterator result with the raise_if_stop! macro, streamlining the handling of StopIteration and value extraction. No changes to public entity declarations are made.
Changes
| File(s) |
Change Summary |
| stdlib/src/csv.rs |
Replaced explicit match on iterator result with the raise_if_stop! macro in the IterNext implementation for Reader. |
Estimated code review effort
🎯 1 (Trivial) | ⏱️ ~2 minutes
Poem
A macro hops in, so spry and neat,
To handle StopIteration’s feat.
Less matching now, more time to play,
The code grows lighter every day.
With every hop, our logic’s tight—
A rabbit’s touch makes code just right! 🐇✨
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📥 Commits
Reviewing files that changed from the base of the PR and between 9499d39 and d8aa0f3.
⛔ Files ignored due to path filters (2)
Lib/csv.py is excluded by !Lib/**Lib/test/test_csv.py is excluded by !Lib/**
📒 Files selected for processing (1)
stdlib/src/csv.rs (2 hunks)
🧰 Additional context used
📓 Path-based instructions (1)
**/*.rs
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**/*.rs: Follow the default rustfmt code style (cargo fmt to format)
Always run clippy to lint code (cargo clippy) before completing tasks. Fix any warnings or lints that are introduced by your changes
Follow Rust best practices for error handling and memory management
Use the macro system (pyclass, pymodule, pyfunction, etc.) when implementing Python functionality in Rust
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- GitHub Check: Run snippets and cpython tests (windows-latest)
🔇 Additional comments (2)
stdlib/src/csv.rs (2)
11-13: ✓ Cleanly imports the helper macro
Adding raise_if_stop to the use list is correct and required for the macro invocation below.
No further action needed.
926-933: Macro use simplifies control-flow without altering behaviour
Replacing the explicit match with raise_if_stop! keeps the semantics (unwrap Return, propagate StopIteration) while trimming boilerplate. The surrounding down-cast and error path remain intact.
Good upgrade—nothing to fix.
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