Qobj constructor has no kwarg 'dtype'

[taylorpatti]

I double checked my dependencies and package versions, but

Qobj(data_structure, dtype='cupyd')`

still produces the error message

TypeError: Qobj.__init__() got an unexpected keyword argument 'dtype'

I was able to get around it with initializing the Qobj and then sending it to cupyd with a to call, but of course this is non-ideal, especially for large data structures.

[Ericgig]

Normally Qobj(cypy_array) should use cupyd format automatically. Maybe this require #41?

qutip-cupy was a GSoC project and has not been kept up to date since the student left.
Some features are probably missing.

[SpaceVector]

You can use Qobj(qutip_cupy.CuPyDense(data_structure)) to temporarily solve this problem.