configuring cluster handle in python rados exits with error NoneType is not callable

[Martin Hoffmann <m.hoffmann.bs@xxxxxxxxx>]

I want to access ceph cluster rbd images via python interface. In a standalone simple python script this works without problems. However i want to create a plugin for bareos backup where this does not work and cluster configure exits with error:

cluster = rados.Rados(rados_id="admin",clustername="ceph",conffile="/etc/ceph/ceph.conf",conf = dict(keyring = "/etc/ceph/ceph.client.admin.keyring"))

File "rados.pyx", line 525, in rados.Rados.__init__ (/tmp/buildd/ceph-10.2.2/src/build/rados.c:5878)

File "rados.pyx", line 423, in rados.requires.wrapper.validate_func (/tmp/buildd/ceph-10.2.2/src/build/rados.c:4097)

TypeError: 'NoneType' object is not callable

Currently this is simple:

import rados

import rbd

rados.Rados(conffile='')

(or with some more parameters - no matter what always same error)

This is on ubuntu 14.04 with ceph 10.2.2 and latest bareos.

Identical code in simple python script works but embedded in bareos plugin it does not.

Any idea what might be causing such behaviour?

Thanks in advance.

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