[PATCH 4/7] [python] API for macros: Add methods to get a gdb.Macro.

[Paul_Koning@Dell.com]

>What would be preferred is an immutable list with a constant time append only exposed to the c api.
>but python doesn't really have one of these.

What about PyTuple_SetItem?  It appends an item to a tuple; the description doesn't say if it's constant time, but given how it's meant to be used one would hope it is.

	paul