stock = Stock("2618')
stock.plus_mons(1)
Traceback (most recent call last):
File "", line 1, in
File "/usr/local/lib/python2.7/site-packages/grs/fetch_data.py", line 121, in plus_mons
oldraw = list(self.raw_data)
AttributeError: 'Stock' object has no attribute '_FetchDataraw_data'