Your %run:ed script probably left too many file descriptors open.
If your ipython process id is 8428 (find out by ps -ef), try doing:
ls -l /proc/8428/fd
To see what files are left open. Report here for result.
I'll add a feature that silently ignores this error for shadowhist_idx, though - even if it's probably pure coincidence that you get this error for this particular file.
Your %run:ed script probably left too many file descriptors open.
If your ipython process id is 8428 (find out by ps -ef), try doing:
ls -l /proc/8428/fd
To see what files are left open. Report here for result.
I'll add a feature that silently ignores this error for shadowhist_idx, though - even if it's probably pure coincidence that you get this error for this particular file.