ImportError: dynamic module does not define init function

[mtrth]

I followed the instructions in the readme and compiled with -DUSE_PYTHON=2 , when I do bash eval_all.sh I get error:

Traceback (most recent call last):
File "train_lpo.py", line 31, in
from lpo import *
File "/home/revathy/lpo-release/src/lpo.py", line 45, in
from python.lpo import *
ImportError: dynamic module does not define init function (PyInit_lpo)

hope you could help me. Thanks.

[philkr]

Is the lpo module built? Is there an lpo.so? Are you building lpo with the same version of python as you're calling it?

[mtrth]

ya I did
mkdir build
cd build
cmake .. -DCMAKE_BUILD_TYPE=Release -DDATA_DIR=/path/to/datasets -DUSE_PYTHON=ON
make -j9

also I have lpo.so in build/lib/python.

$ python version
Python 2.7.10 :: Anaconda 2.3.0 (64-bit)

[philkr]

I have only gotten this error, when I build lpo with boost-python3 and run it with python2 or vice versa.

[liao1995]

i have gotten this error too, if you build lpo with python2, you need modify python3 to python2 in file eval_all.sh:
P=${PYTHON:=python2}