How do I access connectivity of a mesh?

Question

In a 2D setting, suppose I have a mesh and want to know what cells (dimension 2) are neighbors to some cells (dimension 2). I can compute the connectivity by doing, in Python:

mesh.init(2,2)

Then I believe I get a string with the relevant information by:

mt = mesh.topology()
mc = mt(2,2)
mc.str(1)

Is it possible to somehow get access to this connectivity information as arrays or similar?

Answer 1

The connectivity for entity 0 is given as an array by:

connections_220 = mc(0)

and the whole connectivity array is given by:

connections_22 = mc()

but this information is useless without the offset for each entities.