nosetests -a '!slow' -v deepchem --nologcapture # Run tests
```
This creates a new conda environment `deepchem` and installs in it the dependencies that
are needed. To access it, use the `source activate deepchem` command.
are needed. To access it, use the `conda activate deepchem` command (if your conda version >= 4.4) and use `source activate deepchem` command (if your conda version < 4.4).
Check [this link](https://conda.io/docs/using/envs.html) for more information about
the benefits and usage of conda environments. **Warning**: Segmentation faults can [still happen](https://github.com/deepchem/deepchem/pull/379#issuecomment-277013514)
