This seems to work well, do the following in the terminal
export GRPC_PYTHON_BUILD_SYSTEM_OPENSSL=1
export GRPC_PYTHON_BUILD_SYSTEM_ZLIB=1
And then install whatever package that you wanted to install, in my case I was trying to install firebase admin and I had to run the following
pip install firebase-admin
Or just run the below command if you just want to install grpcio
pip install grpcio
I found this thread helpful to understand this issue in detail
https://github.com/grpc/grpc/issues/25082