ImportError: No module named _permutohedral

[molyswu]

Hi,
python main_example.py
Traceback (most recent call last):
File "main_example.py", line 5, in
import CRFRNN
File "/home/molys/product/NER/CRF-RNN_Tensorflow/CRFRNN.py", line 8, in
import permutohedral
File "/home/molys/product/NER/CRF-RNN_Tensorflow/permutohedral.py", line 17, in
_permutohedral = swig_import_helper()
File "/home/molys/product/NER/CRF-RNN_Tensorflow/permutohedral.py", line 16, in swig_import_helper
return importlib.import_module('_permutohedral')
File "/usr/lib64/python2.7/importlib/init.py", line 37, in import_module
import(name)
ImportError: No module named _permutohedral

[0ohadeso0]

hi, i have the same problem. Did you fix that?

[liangy1969]

The code runs with no problem on my personal computer and the computer in my office. The lib is complied under win64, so that might be the cause.
Anyway, I will upload the source files of the lib in the following days so that you can compile them by yourself.

[onurbarut]

hi, while running setup.py I get the following error. do you have any idea?

onur@onur-GE62VR-6RF:~/tf_kodlar/CRF-RNN_Tensorflow-master/src$ python3 setup.py build_ext --inplace
running build_ext
building '_permutohedral' extension
x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -I/usr/lib/python3.5/Lib/site-packages/numpy/core/include -I/usr/include/python3.5m -c permutohedral_wrap.cxx -o build/temp.linux-x86_64-3.5/permutohedral_wrap.o
cc1plus: warning: command line option ‘-Wstrict-prototypes’ is valid for C/ObjC but not for C++
permutohedral_wrap.cxx: In function ‘PyObject* _wrap_PermutohedralLattice_get_enclosing_simplices(PyObject*, PyObject*)’:
permutohedral_wrap.cxx:4056:10: error: invalid conversion from ‘long long unsigned int*’ to ‘size_t* {aka long unsigned int*}’ [-fpermissive]
arg2 = (unsigned long long*) array_data(array2);
^
permutohedral_wrap.cxx: In function ‘PyObject* _wrap_PermutohedralLattice_get_blur(PyObject*, PyObject*)’:
permutohedral_wrap.cxx:4166:10: error: invalid conversion from ‘long long unsigned int*’ to ‘size_t* {aka long unsigned int*}’ [-fpermissive]
arg2 = (unsigned long long*) array_data(array2);
^
error: command 'x86_64-linux-gnu-gcc' failed with exit status 1

Thanks for the code.

[liangy1969]

What is the numpy version you are using?

[onurbarut]

it is 1.13.3. if you need, i use python3.5. If you would like to check it out, I asked a question in stackoverflow, with a little more detail explained. https://stackoverflow.com/questions/46593778/building-crf-rnn-tensorflow-implementation

[liangy1969]

You can try installing the following packages:
sudo apt-get install build-essential libssl-dev libffi-dev python3-dev

I am not sure whether it can work, but you can have a try.

[onurbarut]

it did not work. At the step 5, I run with python3 setup.py.... right? And what is the $PYTHON_PATH you mentioned at the step 4? Maybe I wrote a wrong path. How can I determine what is my path? Thanks for your concern

[liangy1969]

Try changing '$PYTHON_PATH/Lib/site-packages/numpy/core/include' to '/usr/local/lib/python3.5/dist-packages/numpy/core/include/numpy', or the folder that contains the header files of numpy in your python directory.

[onurbarut]

I did, actually I modified setup with import and np.get_include() instead of whole pathname. No use, same error remains :(

[liangy1969]

Probably the 'permutohedral_wrap.cxx' you generated using swig is not correct. Try using the following one
permutohedral_wrap.txt
Change the suffix to cxx

[onurbarut]

You are correct. The problem seems to be solved. I will let you know when I truly train the CRF. Thanks.