ImportError: dynamic module does not define module export function (PyInit__elf)

[greatken999]

make test
(cd build/elf && GTEST_COLOR=1 ctest --output-on-failure)
Test project /mnt/ken-volume/ai/ELF/build/elf
Start 1: test_cpp_elf_options_OptionMapTest
1/2 Test #1: test_cpp_elf_options_OptionMapTest .... Passed 0.01 sec
Start 2: test_cpp_elf_options_OptionSpecTest
2/2 Test #2: test_cpp_elf_options_OptionSpecTest ... Passed 0.00 sec

100% tests passed, 0 tests failed out of 2

Total Test time (real) = 0.02 sec
(cd build/elfgames/go && GTEST_COLOR=1 ctest --output-on-failure)
Test project /mnt/ken-volume/ai/ELF/build/elfgames/go
Start 1: test_cpp_elfgames_go_base_coord_test
1/6 Test #1: test_cpp_elfgames_go_base_coord_test ........... Passed 0.01 sec
Start 2: test_cpp_elfgames_go_base_go_test
2/6 Test #2: test_cpp_elfgames_go_base_go_test .............. Passed 0.00 sec
Start 3: test_cpp_elfgames_go_base_board_feature_test
3/6 Test #3: test_cpp_elfgames_go_base_board_feature_test ... Passed 0.00 sec
Start 4: test_cpp_elfgames_go_base_symmetry_test
4/6 Test #4: test_cpp_elfgames_go_base_symmetry_test ........ Passed 0.01 sec
Start 5: test_cpp_elfgames_go_sgf_sgf_test
5/6 Test #5: test_cpp_elfgames_go_sgf_sgf_test .............. Passed 0.01 sec
Start 6: test_cpp_elfgames_go_mcts_mcts_test
6/6 Test #6: test_cpp_elfgames_go_mcts_mcts_test ............ Passed 0.01 sec

100% tests passed, 0 tests failed out of 6

Total Test time (real) = 0.05 sec
ken@ken-server1:/XXX/ELF$source scripts/devmode_set_pythonpath.sh
ken@ken-server1:/XXX/ELF$ cd scripts/elfgames/go/
ken@ken-server1:/XXX/ELF/scripts/elfgames/go$ ./gtp.sh /mnt/ken-volume/ai/ELF/pretrained-go-19x19-v0.bin --verbose --gpu 0 --num_block 20 --dim 224 --mcts_puct 1.50 --batchsize 16 --mcts_rollout_per_batch 16 --mcts_threads 2 --mcts_rollout_per_thread 8192 --resign_thres 0.05 --mcts_virtual_loss 1
Traceback (most recent call last):
File "df_console.py", line 12, in
from rlpytorch import Evaluator, load_env
File "/mnt/ken-volume/ai/ELF/src_py/rlpytorch/init.py", line 8, in
from .model_loader import ModelLoader, load_env
File "/mnt/ken-volume/ai/ELF/src_py/rlpytorch/model_loader.py", line 13, in
from elf.options import import_options, PyOptionSpec
File "/mnt/ken-volume/ai/ELF/src_py/elf/init.py", line 11, in
from .context_utils import ContextArgs
File "/mnt/ken-volume/ai/ELF/src_py/elf/context_utils.py", line 7, in
from elf.options import auto_import_options, PyOptionSpec
File "/mnt/ken-volume/ai/ELF/src_py/elf/options/init.py", line 8, in
from .py_option_map import PyOptionMap
File "/mnt/ken-volume/ai/ELF/src_py/elf/options/py_option_map.py", line 10, in
from _elf import _options
ImportError: dynamic module does not define module export function (PyInit__elf)

[jma127]

Hey, thanks for your interest! This is a common problem that people have seen when:

• Using an incompatible environment
• Building for the wrong Python
• Doing a botched build, then not cleaning before rebuilding.

Without more details, it will be hard to assist.

[greatken999]

thanks jma127!
It's look is wong python version when make.
I had fix this use sudo rm /usr/bin/python
sudo ln -s /usr/bin/python3 /usr/bin/python

[manuel-delverme]

@greatken999 that's not the right way to solve the problem
some parts of your system (ubuntu [used to] do that) might rely on a specific the /usr/bin/python version and changing the link could break them.
Maybe you could try creating a virtualenv.