RuntimeError: Unable to acquire lock for cache directory (/home/jail/dlusers/<username>/.astropy/cache/download/py3/lock exists). You may need to delete the lock if the python interpreter wasn't shut down properly.

Question

When running a notebook if you get

RuntimeError: Unable to acquire lock for cache directory (/home/jail/dlusers/<username>/.astropy/cache/download/py3/lock exists).

How do I remove the lock?

Answer 1

1. From jupyterhub, click New (on the right side of window), Terminal

2. cd .astropy/cache/download/py3

3. rm -rf lock