Fix KRX change ratio column name

src/FinanceDataReader/krx/listing.py

@@ -32,6 +32,7 @@ def read(self):
         # 해당 날짜의 데이터를 가져옴
         url = f'https://raw.githubusercontent.com/FinanceData/fdr_krx_data_cache/refs/heads/master/data/listing/krx/{formatted_date}.csv'
         df = pd.read_csv(url, dtype={'Code': str, 'Dept': str, 'ChangeCode': str, 'MarketId': str})
+        df = df.rename(columns={'ChagesRatio': 'ChangesRatio'})
 
         mkt_map = {'KRX-MARCAP':'ALL', 'KRX':'ALL', 'KOSPI':'STK', 'KOSDAQ':'KSQ', 'KONEX':'KNX'}
         if self.market not in mkt_map:
@@ -89,7 +90,7 @@ def read(self):
         df = df.sort_values('MKTCAP', ascending=False)
         cols_map = {'ISU_SRT_CD':'Code', 'ISU_ABBRV':'Name', 
                     'TDD_CLSPRC':'Close', 'SECT_TP_NM': 'Dept', 'FLUC_TP_CD':'ChangeCode', 
-                    'CMPPREVDD_PRC':'Changes', 'FLUC_RT':'ChagesRatio', 'ACC_TRDVOL':'Volume', 
+                    'CMPPREVDD_PRC':'Changes', 'FLUC_RT':'ChangesRatio', 'ACC_TRDVOL':'Volume',
                     'ACC_TRDVAL':'Amount', 'TDD_OPNPRC':'Open', 'TDD_HGPRC':'High', 'TDD_LWPRC':'Low',
                     'MKTCAP':'Marcap', 'LIST_SHRS':'Stocks', 'MKT_NM':'Market', 'MKT_ID': 'MarketId' }
         df = df.rename(columns=cols_map)
@@ -335,4 +336,3 @@ def read(self):
         df.rename(columns=col_map, inplace=True)    
         df.attrs = {'exchange':'KRX', 'source':'KRX', 'data':'LISTINGS'}
         return df[['Symbol', 'Name', 'DesignationDate', 'Reason']]    
-

tests/test_basic.py

@@ -153,7 +153,7 @@ def test_pref_us():
 def test_stocklistings():
 
     # KRX 상장회사(발행회사)목록 (가격 중심, 주식 종목) - 시가총액순
-    # Code, ISU_CD, Name, Market, Dept, Close, ChangeCode, Changes, ChagesRatio, Open, High, Low, Volume, Amount, Marcap, Stocks, MarketId
+    # Code, ISU_CD, Name, Market, Dept, Close, ChangeCode, Changes, ChangesRatio, Open, High, Low, Volume, Amount, Marcap, Stocks, MarketId
     df = fdr.StockListing('KRX') # 2,700+ 종목 - 한국거래소(=코스피+코스닥+코넥스)
     assert len(df) > 2700
 
@@ -250,4 +250,4 @@ def test_snap_krx():
 
 def test_snap_krx_stock_list():
     df = fdr.SnapDataReader('KRX/INDEX/STOCK/1001') # 코스피 대형주 종목 리스트
-    assert len(df) >= 90
+    assert len(df) >= 90

tests/test_krx_listing_schema.py

@@ -0,0 +1,70 @@
+import json
+
+import pandas as pd
+
+import FinanceDataReader as fdr
+from FinanceDataReader.krx import listing as krx_listing
+
+
+def test_krx_stock_listing_uses_correct_change_ratio_column(monkeypatch):
+    class Response:
+        text = json.dumps({"result": {"output": [{"max_work_dt": "20260329"}]}})
+
+    cached_listing = pd.DataFrame(
+        {
+            "Code": ["005930"],
+            "Name": ["Samsung"],
+            "ChagesRatio": [0.14],
+            "MarketId": ["STK"],
+        }
+    )
+
+    monkeypatch.setattr(krx_listing.requests, "get", lambda *args, **kwargs: Response())
+    monkeypatch.setattr(
+        krx_listing.pd, "read_csv", lambda *args, **kwargs: cached_listing.copy()
+    )
+
+    result = fdr.StockListing("KRX")
+
+    assert "ChangesRatio" in result.columns
+    assert "ChagesRatio" not in result.columns
+
+
+def test_krx_live_listing_uses_correct_change_ratio_column(monkeypatch):
+    class Response:
+        def __init__(self, text):
+            self.text = text
+
+    metadata = json.dumps({"result": {"output": [{"max_work_dt": "20260329"}]}})
+    row = {
+        "ISU_SRT_CD": "005930",
+        "ISU_ABBRV": "Samsung",
+        "TDD_CLSPRC": "70000",
+        "SECT_TP_NM": "Electronics",
+        "FLUC_TP_CD": "1",
+        "CMPPREVDD_PRC": "100",
+        "FLUC_RT": "0.14",
+        "ACC_TRDVOL": "123",
+        "ACC_TRDVAL": "8610000",
+        "TDD_OPNPRC": "69900",
+        "TDD_HGPRC": "70500",
+        "TDD_LWPRC": "69500",
+        "MKTCAP": "1000000",
+        "LIST_SHRS": "1000",
+        "MKT_NM": "KOSPI",
+        "MKT_ID": "STK",
+    }
+
+    def fake_get(*args, **kwargs):
+        return Response(metadata)
+
+    def fake_post(*args, **kwargs):
+        return Response(json.dumps({"OutBlock_1": [row]}))
+
+    monkeypatch.setattr(krx_listing.requests, "get", fake_get)
+    monkeypatch.setattr(krx_listing.requests, "post", fake_post)
+
+    result = krx_listing.KrxMarcapListing("KRX").read()
+
+    assert "ChangesRatio" in result.columns
+    assert "ChagesRatio" not in result.columns