py-pennylane (spack): PennyLane is a Python quantum machine learning library by Xanadu Inc. 
Keywords: autograd|automatic-differentiation|cirq|deep-learning|differentiable-computing|hacktoberfest|jax|machine-learning|neural-network|optimization|python|pytorch|qiskit|qml|quantum|quantum-chemistry|quantum-computing|quantum-machine-learning|strawberryfields|tensorflow