Update app.py

app.py

@@ -78,12 +78,13 @@ def download_one(session: requests.Session, url: str, outdir: str, pref: str) ->
         fname = guess_filename_from_headers(r, f"{pref}_{file_id}.xlsx")
         path = os.path.join(outdir, fname)
         with open(path, "wb") as f:
-            for chunk in r.iter_iterable = r.iter_content(chunk_size=1 << 15)
-            for chunk in iter_iterable:
+            # ✅ ここを修正：通常の iter_content ループに
+            for chunk in r.iter_content(chunk_size=1 << 15):
                 if chunk:
                     f.write(chunk)
     return path
 
+
 # ---- 3段ヘッダ → 1枚目のみ採用／他はスキップ行数で読込 ----------------------
 
 HEADER_ROWS = [1, 2, 3]  # 0行目は削除、1/2/3行目を列名として結合