ImportError: cannot import name 'Irt'

[Jason8Kang]

I do as the demo,but get the error
Type "help", "copyright", "credits" or "license" for more information.

from future import print_function, division, unicode_literals
from psy import Irt, data
Traceback (most recent call last):
File "", line 1, in
ImportError: cannot import name 'Irt'

[d80ep08th]

Thats because the package is " irt " and not " Irt " . I would recommend to close this issue