obvious rpy2 usage throws an unsupported operand type(s) exception

Question

I am getting some unexpected behaviour with rypy2:

 ma / robjects.r.rowSums(ma) 

where ma is a matrix

throws an exception

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: unsupported operand type(s) for /: 'Matrix' and 'FloatVector'

Any help?

Answer 1

Python operators might differ from R operators.

A self-contained example is not provided with the question, but this should work

ma.ro / robjects.r.rowSums(ma)