Beacon tango db exception
from bliss.common.tango import Database
db = Database()
db.get_device_exported_for_class("NexusWriter")
I get following expception
PyTango.DevFailed: DevFailed[
DevError[
desc = TypeError: a bytes-like object is required, not 'str'
origin = File "/data/id21/inhouse/wout/dev/virtualenvs/rnice8/bliss/py37/lib/python3.7/site-packages/tango/server.py", line 1142, in cmd
return get_worker().execute(f, self, *args, **kwargs)
File "/data/id21/inhouse/wout/dev/virtualenvs/rnice8/bliss/py37/lib/python3.7/site-packages/tango/gevent_executor.py", line 182, in execute
return task.result()
File "/data/id21/inhouse/wout/dev/virtualenvs/rnice8/bliss/py37/lib/python3.7/site-packages/tango/gevent_executor.py", line 128, in result
six.reraise(*self.exception)
File "/data/id21/inhouse/wout/dev/virtualenvs/rnice8/bliss/py37/lib/python3.7/site-packages/six.py", line 693, in reraise
raise value
File "/data/id21/inhouse/wout/dev/virtualenvs/rnice8/bliss/py37/lib/python3.7/site-packages/tango/gevent_executor.py", line 116, in run
self.value = self.func(*self.args, **self.kwargs)
File "/data/id21/inhouse/wout/dev/virtualenvs/rnice8/bliss/py37/lib/python3.7/site-packages/tango/databaseds/database.py", line 363, in DbGetExportdDeviceListForClass
return self.db.get_exported_device_list_for_class(argin)
File "/mntdirect/_data_id21_inhouse/wout/dev/blissmain/bliss/tango/db_access/beacon.py", line 29, in f
returnVal = funct(self, *args, **kwargs)
File "/mntdirect/_data_id21_inhouse/wout/dev/blissmain/bliss/tango/db_access/beacon.py", line 791, in get_exported_device_list_for_class
dev_name = exp_dev.replace("tango.info.", "")
reason = PyDs_PythonError
severity = ERR]
DevError[
desc = Failed to execute command_inout on device sys/database/2, command DbGetExportdDeviceListForClass
origin = Connection::command_inout()
reason = API_CommandFailed
severity = ERR]
]