| [absl-py](https://pypi.python.org/pypi/absl-py) | Abseil Python Common Libraries, see https://github.com/abseil/abseil-py. |
| [ASE](https://wiki.fysik.dtu.dk/ase/) | ASE is a python package providing an open source Atomic Simulation Environment in the Python scripting language. |
| [asv](https://github.com/airspeed-velocity/asv) | Airspeed velocity (asv) is a tool for benchmarking Python packages over their lifetime. |
| [attrs](http://www.attrs.org/) | Classes Without Boilerplate |