Fixing the 'BV' key being missing for USDT

freqtrade/analyze.py

@@ -30,8 +30,9 @@ def parse_ticker_dataframe(ticker: list) -> DataFrame:
     """
     columns = {'C': 'close', 'V': 'volume', 'O': 'open', 'H': 'high', 'L': 'low', 'T': 'date'}
     frame = DataFrame(ticker) \
-        .drop('BV', 1) \
         .rename(columns=columns)
+    if 'BV' in frame:
+        frame.drop('BV', 1, inplace=True)
     frame['date'] = to_datetime(frame['date'], utc=True, infer_datetime_format=True)
     frame.sort_values('date', inplace=True)
     return frame

freqtrade/tests/conftest.py

@@ -196,7 +196,6 @@ def ticker_history():
             "C": 8.88e-05,
             "V": 991.09056638,
             "T": "2017-11-26T08:50:00",
-            "BV": 0.0877869
         },
         {
             "O": 8.88e-05,
@@ -205,7 +204,6 @@ def ticker_history():
             "C": 8.893e-05,
             "V": 658.77935965,
             "T": "2017-11-26T08:55:00",
-            "BV": 0.05874751
         },
         {
             "O": 8.891e-05,
@@ -214,6 +212,5 @@ def ticker_history():
             "C": 8.877e-05,
             "V": 7920.73570705,
             "T": "2017-11-26T09:00:00",
-            "BV": 0.7039405
         }
     ]