What is a macro? ======================= A macro is a command that groups the execution of several subcommands. It can be used in a command file like any other command and has its own catalog, defining its syntax. Several types of macro are possible: * macros specific to the supervisor, implemented in Python and Fortran: for example FORMULE, INCLUDE, DEBUT... * developer macros implemented in Python. This document treats the definition and use of macros in Python.