The most straightforward way, with the example you gave is to define the structure just when you have the information you need.
A simple way of doing that is creating the class at the point you will use it, not at module root - you can, for example, just put the class
body inside a function, that will act as a factory - I think that is the most readable way.
import ctypes as c
class Point(c.Structure):
_fields_ = [
('x',c.c_double),
('y',c.c_double),
('z',c.c_double)
]
def points_factory(num_points):
class Points(c.Structure):
_fields_ = [
('num_points', c.c_uint32),
('points', Point*num_points)
]
return Points
#and when you need it in the code:
Points = points_factory(5)
Sorry -
It is the C code that will "fill in" the values for you - that is not the answer them. WIll post another way.
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