I noticed that I introduced a regression in rDCOREf9619fb188c36dd9ce12cfcca493f3268e829172
which make the reraise_exceptions parameter of RPCClient not honored anymore
Looks like I got mistaken by the for/else construct of Python.
That diff fixes that regression.
The use of reraise_exceptions is not covered by tests so I propose to land that diff
to fix the errors and submit another one adding tests.