Mubashshir Ali

@takluyver I'm also facing the same error of database getting locked while creating a new file and I can't figure a way to solve it. The error log:[I 15:16:34.430 NotebookApp]...

Seems like for now I have worked my way around the error by deleting the nbsignatures.db and notebook_secret files at ~/.local/share/jupyter. But, then it gave me the familiar disk I/O...

I spent some time looking for an existing pythonic solution on velocity potential and stream function. These two are the most promising hits but a caution that I haven't tested...