Strawberry Fields information.

Prints the installed version numbers for SF and its dependencies, and some system info. Please include this information in bug reports.


>>> sf.about()
Strawberry Fields: a Python library for continuous-variable quantum circuits.
Copyright 2018-2020 Xanadu Quantum Technologies Inc.

Python version:            3.6.10
Platform info:             Linux-5.8.18-1-MANJARO-x86_64-with-arch-Manjaro-Linux
Installation path:         /home/strawberryfields/
Strawberry Fields version: 0.17.0
Numpy version:             1.19.5
Scipy version:             1.4.1
SymPy version:             1.5.1
NetworkX version:          2.4
The Walrus version:        0.14.0
Blackbird version:         0.3.0
TensorFlow version:        2.4.0