I'm trying to import the package theano into my Jupyter notebook, but always receive the following error:
WARNING (theano.configdefaults): g++ not available, if using conda:
conda install m2w64-toolchainC:\Users\tmgor\Anaconda3\lib\site-packages\theano\configdefaults.py:560: UserWarning: DeprecationWarning: there is no c++ compiler.This is deprecated and with Theano 0.11 a c++ compiler will be mandatory warnings.warn("DeprecationWarning: there is no c++ compiler." WARNING (theano.configdefaults): g++ not detected ! Theano will be unable to execute optimized C-implementations (for both CPU and GPU) and will default to Python implementations. Performance will be severely degraded. To remove this warning, set Theano flags cxx to an empty string. WARNING (theano.tensor.blas): Using NumPy C-API based implementation for BLAS functions.
I'm using Python version 3.6.6, and I'm on a PC with Windows 10. I can still run theano but I'd like to address the error.
Tried import m2w64-toolchain in Jupyter but error message says invalid syntax
I then installed a MinGW GCC/G++ compiler, following directions in this video but when I went back to Jupyter and imported theano again the error message changed to this much longer one and stopped working entirely. Error message is 400+ lines long so won't put the whole thing, but it ends with this:
Problem occurred during compilation with the command line below: "C:\MinGW\bin\g++.exe" -shared -g -DNPY_NO_DEPRECATED_API=NPY_1_7_API_VERSION -m64 -DMS_WIN64 -I"C:\Users\tmgor\Anaconda3\lib\site-packages\numpy\core\include" -I"C:\Users\tmgor\Anaconda3\include" -I"C:\Users\tmgor\Anaconda3\lib\site-packages\theano\gof\c_code" -L"C:\Users\tmgor\Anaconda3\libs" -L"C:\Users\tmgor\Anaconda3" -o "C:\Users\tmgor\AppData\Local\Theano\compiledir_Windows-10-10.0.18362-SP0-Intel64_Family_6_Model_142_Stepping_9_GenuineIntel-3.6.6-64\lazylinker_ext\lazylinker_ext.pyd" "C:\Users\tmgor\AppData\Local\Theano\compiledir_Windows-10-10.0.18362-SP0-Intel64_Family_6_Model_142_Stepping_9_GenuineIntel-3.6.6-64\lazylinker_ext\mod.cpp" -lpython36cc1plus.exe: sorry, unimplemented: 64-bit mode not compiled in
In the end I got rid of the g++ compiler and now I'm back to the original error. I've read this previous thread but didn't find an answer to my problem. I'm quite new to python so any suggestions welcome.
