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Reverse data after slice. #679

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Reverse data after slice. #679

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6 changes: 4 additions & 2 deletions pandas_datareader/av/time_series.py
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Original file line number Diff line number Diff line change
Expand Up @@ -80,11 +80,13 @@ def params(self):

def _read_lines(self, out):
data = super(AVTimeSeriesReader, self)._read_lines(out)
# reverse since alphavantage returns descending by date
data = data[::-1]
start_str = self.start.strftime('%Y-%m-%d')
end_str = self.end.strftime('%Y-%m-%d')
data = data.loc[start_str:end_str]

# reverse since alphavantage returns descending by date
data = data[::-1]

if data.empty:
raise ValueError("Please input a valid date range")
else:
Expand Down