No module polylearn.loss_fast

[msh-tf]

`In [1]: import polylearn

ImportError Traceback (most recent call last)
in ()
----> 1 import polylearn

/Users/manas/projects/polylearn/polylearn/init.py in ()
----> 1 from .factorization_machine import FactorizationMachineRegressor
2 from .factorization_machine import FactorizationMachineClassifier
3 from .polynomial_network import PolynomialNetworkRegressor
4 from .polynomial_network import PolynomialNetworkClassifier

/Users/manas/projects/polylearn/polylearn/factorization_machine.py in ()
22 from lightning.impl.dataset_fast import get_dataset
23
---> 24 from .base import _BasePoly, _PolyClassifierMixin, _PolyRegressorMixin
25 from .kernels import _poly_predict
26 from .cd_direct_fast import _cd_direct_ho

/Users/manas/projects/polylearn/polylearn/base.py in ()
10 from sklearn.externals import six
11
---> 12 from .loss import CLASSIFICATION_LOSSES, REGRESSION_LOSSES
13
14

/Users/manas/projects/polylearn/polylearn/loss.py in ()
2 # License: Simplified BSD
3
----> 4 from .loss_fast import Squared, SquaredHinge, Logistic
5
6

ImportError: No module named 'polylearn.loss_fast'`

[mblondel]

Did you run python setup.py build at the project root? Do you have Cython installed?

[vene]

Actually I realized we're bundling the .cpp files so I don't think Cython is an install dependency. I updated the readme accordingly.

[vene]

@msh-tf are you still having issues?

[xenocyon]

Hi @vene, I'm seeing the same issue. I'm attaching the stdout/stderr in a text file so you can see specifics of my install, in case that helps you debug.

stdout_stderr.txt

[vene]

I think the problem is you're trying to import polylearn from the source directory. This does not work. Try: `mkdir newdir; cd newdir; python -c "import polylearn"` In practice your scripts using polylearn should be in their own packages elsewhere on disk anyway. Let me know if this works.

[xenocyon]

Thank you @vene ; that resolves my issue!