シナリオの詳細についてはわかりませんが、socat には EXEC アドレス タイプがあります。
EXEC:<command-line>
Forks a sub process that establishes communication with its parent process and invokes the specified program with execvp() . <command-line> is a simple command with argu-
ments separated by single spaces. If the program name contains a '/', the part after the last '/' is taken as ARGV[0]. If the program name is a relative path, the execvp()
semantics for finding the program via $PATH apply. After successful program start, socat writes data to stdin of the process and reads from its stdout using a UNIX domain
socket generated by socketpair() per default. (example)
Option groups: FD,SOCKET,EXEC,FORK,TERMIOS
Useful options: path, fdin, fdout, chroot, su, su-d, nofork, pty, stderr, ctty, setsid, pipes, login, sigint, sigquit
See also: SYSTEM
あなたの場合、私がそれを理解していれば、次のようなことをしたいと思うでしょう:
socat TCP-LISTEN:8888 EXEC:/path/to/your/python/script