Make the TensorFlow dependency optional

google / tangent

Source-to-Source Debuggable Derivatives in Pure Python

Apache License 2.0

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Closed mdanatg closed 6 years ago

mdanatg commented 6 years ago

Roughly this involves:

surround specific imports with try/catch blocks (see steps 2 and 3 in #61) and continue on import failure
remove the TF dependency from the installation scripts