Seeking Spyder-like version of 'Run' to automatically run code in interpreter without exiting



New to the Cloud9 IDE and an seeking a Spyder-like version of ‘Run’ or ‘Run With’ that will automatically run my Python code within the interpreter without exiting.

I appear to have three relevant options for ‘Run With’ in Cloud9:
(a) Python (interactive mode)
(b) Python 2
© Python 3

Option (a) leaves me in the interpreter, but I have to manually run the code via import or execfile.
Options (b) and © automatically run the code, but then exit Python.

I’d like an option (d) that starts the interpreter, then immediately applies execfile (or a Python 3 analog) to my file.

Yours truly,