ImportError: cannot import name Stock

[snowuyl]

Dear Toomore,

   My startup.py is as follows.

from grs import Stock stock = Stock('6278')
print stock.moving_average(5)
print stock.moving_average_value(5)
print stock.moving_average_bias_ratio(5, 10)

  I run startup.py as follows.

python startup.py

  But the following error occurred

Traceback (most recent call last): File "startup.py", line 3, in from grs import Stock ImportError: cannot import name Stock

Do you have any suggestion?

Thanks in advance!

snowuyl