Expected in: flat namespace

[yananchen1989]

---

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

/Users/yanan.chen/anaconda/lib/python2.7/site-packages/implicit/init.py in ()
1 from .als import alternating_least_squares
2
----> 3 from . import nearest_neighbours
4 from . import als
5

/Users/yanan.chen/anaconda/lib/python2.7/site-packages/implicit/nearest_neighbours.py in ()
5 from scipy.sparse import coo_matrix, csr_matrix
6
----> 7 from ._nearest_neighbours import all_pairs_knn
8 from .recommender_base import RecommenderBase
9 from .utils import nonzeros

ImportError: dlopen(/Users/yanan.chen/anaconda/lib/python2.7/site-packages/implicit/_nearest_neighbours.so, 2): Symbol not found: __ZdlPvm
Referenced from: /Users/yanan.chen/anaconda/lib/python2.7/site-packages/implicit/_nearest_neighbours.so
Expected in: flat namespace
in /Users/yanan.chen/anaconda/lib/python2.7/site-packages/implicit/_nearest_neighbours.so

[yananchen1989]

How to solve this problem.

[benfred]

The same error seemed to be occuring for a bunch of Theano users too: http://stackoverflow.com/questions/42729958/python-theano-undefined-symbol-zdlpvm-error/42832716#42832716

The issue there seems to be a problem with a too new version of GCC. Can you try the steps there, I can't reproduce this on my machine.

[benfred]

I had this same error on my ubuntu v16.04 when running gcc6 and anaconda3 - downgrading to gcc 5 fixed.