Wakari seems to be something like PythonAnywhere, which I blogged about some months ago, but Wakari has an emphasis on scientific Python. It is an MVP (Minimum Viable Product) and is in beta at present. Anyone can sign up for it. Though the emphasis is on scientific Python, it also has support for financial uses, and can be used for general Python work as well.
The Wakari introduction linked above explains the different uses to which it can be put.
Wakari is from Continuum Analytics, a company co-founded by Travis Oliphant, a main developer of NumPy; he was also President of Enthought earlier.