🌐 [translation-sync] [polars] Fetch the FRED CSV with requests before parsing it

[mmcky]

Automated Translation Sync

This PR contains automated translations from QuantEcon/lecture-python-programming.

Source PR

#647 - [polars] Fetch the FRED CSV with requests before parsing it

Files Updated

• ✏️ lectures/polars.md
• ✏️ .translate/state/polars.md.yml

Details

• Source Language: en
• Target Language: fr
• Model: claude-sonnet-5

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This PR was created automatically by the translation action.

[github-actions]

✅ Translation Quality Review

Verdict: PASS | Model: claude-sonnet-5 | Date: 2026-10-13
Routing: editor — 1 minor finding(s) in gating categories (accuracy/terminology/syntax/diff-check/other)
Shadow gate: would NOT auto-merge (recorded only; no action taken)

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📝 Translation Quality

Criterion	Score
Accuracy	9/10
Fluency	9/10
Terminology	9/10
Formatting	10/10
Overall	9.2/10

Summary: The 'On-line data sources' section is translated accurately and fluently, preserving all code blocks, links, and MyST formatting correctly. Terminology is consistent with the glossary, and only very minor stylistic nuances (e.g., naming of the St. Louis Fed) could be refined. No syntax errors were found. Faithful and precise rendering of technical Polars-specific vocabulary (e.g., 'read_csv', 'try_parse_dates=True') kept unchanged as required for code Correct French typography applied throughout (non-breaking spaces before colons, etc.) Clear, natural French phrasing in descriptive sentences surrounding the code cells in the On-line data sources section

Suggestions:

• [minor · terminology] lectures/polars.md — ## Sources de données en ligne — 'et transmettons son contenu à la méthode read_csv de Polars': The English says 'pass its contents to Polars' read_csv', referring to the function, while the French adds 'méthode' which is a slight paraphrase but not inaccurate; this is a minor stylistic addition, not an error.
• [nit · fluency] lectures/polars.md — ## Sources de données en ligne — 'la Fed de St. Louis': The abbreviation 'St. Louis Fed' is rendered as 'Fed de St. Louis', which is acceptable but could be more naturally localized as 'Réserve fédérale de Saint-Louis' for consistency with the glossary's treatment of institutional names (e.g., 'National Bureau of Economic Research (NBER)'). → la Réserve fédérale de Saint-Louis (Fed de St. Louis)

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🔍 Diff Quality

Check	Status
Scope Correct	✅
Position Correct	✅
Structure Preserved	✅
Heading-map Correct	✅
Overall	10/10

Summary: The translated document correctly mirrors the source change, replacing the direct URL read with a requests-based fetch in the 'On-line data sources' section, with no impact on headings or structure.

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This review was generated automatically by action-translation review mode.

[Copilot]

🟢 Approval recommended

The translated prose and code accurately match the merged upstream source PR #647 and the metadata update is consistent, with no issues found.

0 open findings

What changed in this PR

This is an automated translation-sync PR that propagates changes from the upstream English lecture (QuantEcon/lecture-python-programming#647) into the French polars.md lecture. The change updates the FRED data-fetching example so the CSV is downloaded with requests first and its bytes are passed to Polars' read_csv, rather than reading the URL directly.

Changes:

• Updated the French prose to describe downloading the CSV with requests and passing its contents to read_csv.
• Replaced pl.read_csv(fred_url, ...) with import requests; r = requests.get(fred_url); pl.read_csv(r.content, ...).
• Bumped the translation state metadata (source-sha, synced-at, tool-version).

File	Description
lectures/​polars.md	Translates the updated FRED example prose and code to fetch the CSV via requests before parsing.
.translate/​state/​polars.md.yml	Updates sync metadata (source SHA, sync date, tool version) to reflect this sync.

The French prose and code faithfully mirror the reviewed upstream source PR, the code cell is syntactically correct, and no French typography (non-breaking space) rules apply to the newly added prose since it contains no :;!? punctuation.

🧠 Review effort: Balanced

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[github-actions]

📖 Netlify Preview Ready!

Preview URL: https://pr-97--verdant-toffee-3261a8.netlify.app

Commit: f9419bc

📚 Changed Lectures

• polars

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Build Info

• Workflow: Build Project [using jupyter-book]