How can I do this with python ?

[Xiao Jianfeng]

Tim N. van der Leeuw wrote:
> Your question is insufficiently clear for me to answer.
>
> Do you want to know how to read from standard-input in a Python
> program?
>
> Do you want to know how to start an external program from Python, and
> then connect something to that programs standard input?
>
> Do you want to know something else?
>
> Please specify!
>
> Cheers,
>
> --Tim
>
>   
Thanks.

For example, I can call vim and do something like this in a shell script,

#!/bin/sh

vim a.file<<-EOF
:some_vim_command
:some_vim_command
:w
:q
EOF

I want to know how to call vim and to the same thing with python.

Regrads,