libact.query_strategies._variance_reduction is missing

[gtcslance]

this line of code does not work

from libact.query_strategies._variance_reduction import estVar

because the _variance_reduction module is missing

[yangarbiter]

Did you install the package correctly through ./setup.py install?

It seems you didn't compile the source code for variance reduction.

[rislam]

I have followed the same and the last line

Finished processing dependencies for libact==0.1.3

Then I tried to run, python examples/plot.py

Traceback (most recent call last):
File "examples/plot.py", line 23, in
from libact.query_strategies import *
File "/libact-master/libact/query_strategies/init.py", line 20, in
from ._variance_reduction import estVar
ImportError: dlopen(/libact-master/libact/query_strategies/_variance_reduction.cpython-37m-darwin.so, 2): Symbol not found: ___addtf3
Referenced from: /usr/local/opt/gcc/lib/gcc/8/libquadmath.0.dylib
Expected in: /usr/lib/libSystem.B.dylib
in /usr/local/opt/gcc/lib/gcc/8/libquadmath.0.dylib

[yangarbiter]

scipy/scipy#5093

Could you try to reinstall the package?

[rislam]

Yes, I have tried them too.

• Tried with virtual environment with py27 and python -c "import scipy; print(scipy.__version__)" seems to be 1.1.0
• In conda with python 3.5 also from scipy.special import legendre didn't provide any problem. And python -c "import scipy; print(scipy.__version__)" seems to be 1.1.0

[yangarbiter]

I mean remove libact completely and reinstall it.

[rislam]

Tried that one and this one #138 too. But out of luck.