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Default should return a dataframe, not an empty list.
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@@ -114,7 +114,7 @@ class FeatherDataHandler(IDataHandler):
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"""
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filename = self._pair_trades_filename(self._datadir, pair)
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if not filename.exists():
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return []
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return DataFrame(columns=DEFAULT_TRADES_COLUMNS)
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tradesdata = read_feather(filename)
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@@ -125,7 +125,7 @@ class JsonDataHandler(IDataHandler):
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tradesdata = misc.file_load_json(filename)
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if not tradesdata:
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return []
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return DataFrame(columns=DEFAULT_TRADES_COLUMNS)
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if isinstance(tradesdata[0], dict):
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# Convert trades dict to list
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