From bd750294cc30d3385f34079e4e58430726513062 Mon Sep 17 00:00:00 2001
From: Matt McKay <mmcky@users.noreply.github.com>
Date: Tue, 13 Oct 2026 15:34:53 +1100
Subject: [PATCH 1/2] Update translation: lectures/polars.md

---
 lectures/polars.md | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/lectures/polars.md b/lectures/polars.md
index ef40703..5bc4ea0 100644
--- a/lectures/polars.md
+++ b/lectures/polars.md
@@ -555,7 +555,8 @@ print(f"Polars lazy:  {lazy_time:.4f}s")
 
 对经济学家而言，一个重要的数据库是 [FRED](https://fred.stlouisfed.org/)——由圣路易斯联储维护的庞大时间序列数据集。
 
-Polars 的 `read_csv` 可以直接从 URL 获取数据。
+我们使用 [requests](https://requests.readthedocs.io/en/latest/) 下载 CSV 文件，
+并将其内容传递给 Polars 的 `read_csv`。
 
 我们使用 `try_parse_dates=True` 来自动解析日期列
 
@@ -575,7 +576,10 @@ fred_url = ('https://fred.stlouisfed.org/graph/fredgraph.csv?'
             'fgst=lin&fgsnd=2020-02-01&line_index=1&'
             'transformation=lin&vintage_date=2024-07-29&'
             'revision_date=2024-07-29&nd=1948-01-01')
-data = pl.read_csv(fred_url, try_parse_dates=True)
+import requests
+
+r = requests.get(fred_url)
+data = pl.read_csv(r.content, try_parse_dates=True)
 ```
 
 让我们查看前几行

From 1216b4f7c26a998868785b217275c5412d81596c Mon Sep 17 00:00:00 2001
From: Matt McKay <mmcky@users.noreply.github.com>
Date: Tue, 13 Oct 2026 15:34:54 +1100
Subject: [PATCH 2/2] Update translation: .translate/state/polars.md.yml

---
 .translate/state/polars.md.yml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/.translate/state/polars.md.yml b/.translate/state/polars.md.yml
index 81b3af0..415d3ca 100644
--- a/.translate/state/polars.md.yml
+++ b/.translate/state/polars.md.yml
@@ -1,6 +1,6 @@
-source-sha: 55c87c9fdbdb522866c5b6bbdc65c073941d7f16
-synced-at: "2026-08-18"
+source-sha: b0c58ab96a9c537fcf766e4f2d9fd32f4a0fc2f7
+synced-at: "2026-10-13"
 model: claude-sonnet-5
 mode: UPDATE
 section-count: 6
-tool-version: 0.26.0
+tool-version: 0.29.4