How to extract Boundary conditions from Abaqus ODB file using python script??

Dear All:

I write a python script that reads an Abaqus odb file and extract some data from that. My current problem is that I couldnt find a command to extract Boundary conditions from odb file. Can anybody help me with this issue?

One way is to search through nodal displacements and get those nodal DOFs that are equal to zero. But, I think this method is not an efficient one.:p

Regards,

Malekan