Traceback (most recent call last):

 "/home/path/to/mu/mu/editor.py", line 356, in save
with open(ed.path, 'w') as f:
NotFoundError: [Errno 2] No such file or directory: ''
Traceback (most recent call last):

 "/usr/local/lib/python3.6/dist-packages/spyder_notebook/notebookplugin.py", line 374, in close_client
nb_contents = nbformat.read(path, as_version=4)

 "/home/jpp/.local/lib/python3.6/site-packages/nbformat/__init__.py", line 138, in read
with io.open(fp, encoding='utf-8') as f:
NotFoundError: [Errno 2] No such file or directory: '/tmp/spyder-jpp/notebooks/untitled1.ipynb'