failed to test fings due to missing of factorial package

[chengzhongshan]

When installing fings via conda, it failed to test the following demo code;
cd ~/anaconda3/envs/fings/lib/python3.7/site-packages/fings/exampledata/
./test.sh

##Need to install the python package factorial;

#pip install factorial
#The above still failed to resolve the issue;

The following will address the issue:
python -m pip install scipy==1.2 --upgrade