How do you redirect the stdin of a csh script to the stdin of a python script? 
I have a cgi script I'm writing in csh that runs on a Solaris machine. This csh script is a wrapper to a python script that reads from the stdin (I know, scripting in csh is bad but I'm forced to in this case). 
Thanks for help! (And sorry for the n00b question!)
You don't need to do anything.
Commands (such that a Python script) that you start from a shell (such as csh) will inherit the shell's stdin (and stdout, stderr) by default unless you actively do something to prevent it.
csh stdin to Python stdin?