Prepared Statements integration in PsycoPG

Hi all:

I'm trying to integrate the PQprepare and PQexecPrepared methods of libpq
in the psycopg, but i'm not sure what API must have in python.

My initial idea is two new methods on the cursor class:

* prepare(statement_name, statement_query)
* execPrepared(statement, values)

This have some extra problems like knowing the number and type of
attributes expected by prepare and execPrepared, needed by the PQprepare
and PQexecPrepared. One option is to add and extra parameter that receive
this information, another way is parse the statement_query to extract this
information, but probably must be a simplified versión of this (force types
like TEXT to not explicitly defined types).

Probably another option is take the same solution to the PQexecParams.

Any idea about this? Any suggestion?

Greetings and thanks.