Failed cleaning build dir for SciPy

scipy under ARM architecture is itself a difficult package to install

when using pip3 install keras, run scipy \. Then, Failed cleaning build dir for scipy

popped up

looked up a lot of information, you can install the following dependency package, you can successfully install keras

sudo apt-get install python3-scipy
sudo apt-get install libblas-dev liblapack-dev
sudo apt-get install gfortran
sudo pip3 install keras

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