code: def main():
      symbols = ["AAPL", "MSFT", "BRK-A"]
      # Specifically chosen to include the AAPL split on June 9, 2014.
      for symbol in symbols:
          data = DataReader(
              symbol,
              "yahoo",
              start="2014-03-01",
              end="2014-09-01",
          )
          data.rename(
              columns={
                  "Open": "open",
                  "High": "high",
                  "Low": "low",
                  "Close": "close",
                  "Volume": "volume",
              },
              inplace=True,
          )
          del data["Adj Close"]
  
          dest = join(here, symbol + ".csv")
          print("Writing %s -> %s" % (symbol, dest))
          data.to_csv(dest, index_label="day")
  
imports: from __future__ import print_function
  from os.path import dirname, join
  from pandas_datareader.data import DataReader
label_desc: Use image node_id 1 for calling a global function with example usage: main() without return types