ImportError: cannot import name 'GRF' from 'spaces' (D:\miniconda3\lib\site-packages\spaces\__init__.py)

[alexmav04]

I have some problem while I run the code deeponet_ode.py:

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ImportError Traceback (most recent call last)
C:\Users\ALEXYA~1\AppData\Local\Temp/ipykernel_12048/4004186280.py in
9
10 import deepxde as dde
---> 11 from spaces import FinitePowerSeries, FiniteChebyshev, GRF
12 # from spaces import GRF
13 from system import LTSystem, ODESystem, DRSystem, CVCSystem, ADVDSystem

ImportError: cannot import name 'FinitePowerSeries' from 'spaces' (D:\miniconda3\lib\site-packages\spaces_init_.py)

I have run pip install spaces in the virtual environment, then I got this error. I check the file 'spaces_init_.py', there is nothing in the file.
Is there anything I miss?

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I found that is because the code run in the wrong folder. The module 'spaces' is actually involved in it.
Sorry for the dumb question.

[lululxvi]

Here https://github.com/lululxvi/deeponet/blob/master/src/spaces.py