AttributeError: module 'xacro' has no attribute 'process' #78

When running the simple_joint_space_planner.py example in the master branch i get the following error related with the xacro functionality:

Traceback (most recent call last): File "example/simple_joint_space_planner.py", line 138, in <module> main() File "example/simple_joint_space_planner.py", line 102, in main kuka = KukaLBR() File "/home/joao/Documents/Projects/test/optas/example/pybullet_api.py", line 168, in __init__ urdf_string = xacro.process(xacro_filename) AttributeError: module 'xacro' has no attribute 'process'