_csv.Error: need to escape, but no escapechar set

[kenorb]

./dl_bt_dukascopy.py -c -p AUDJPY
Downloading http://www.dukascopy.com/datafeed/AUDJPY/2014/11/11/13h_ticks.bi5 into: download/dukascopy/AUDJPY/2014/12/2014-12-11--13h_ticks.bi5...
Converting into CSV (download/dukascopy/AUDJPY/2014/12/2014-12-11--13h_ticks.csv)...
Downloading http://www.dukascopy.com/datafeed/AUDJPY/2014/11/11/14h_ticks.bi5 into: download/dukascopy/AUDJPY/2014/12/2014-12-11--14h_ticks.bi5...
Converting into CSV (download/dukascopy/AUDJPY/2014/12/2014-12-11--14h_ticks.csv)...
Traceback (most recent call last):
  File "./dl_bt_dukascopy.py", line 411, in <module>
    ds.bt5_to_csv()
  File "./dl_bt_dukascopy.py", line 370, in bt5_to_csv
    w.writerow([timestamp, bidPrice, askPrice, bidVolume, askVolume])
_csv.Error: need to escape, but no escapechar set