xcli initialization failing with TypeError

[prashkre]

With python3, while initializing xcli for xiv storage, it is failing at pyxcli/client.py because pyxcli is expecting a string instead of bytes returned from cinder.volume.drivers.ibm.ibm_storage .cryptish.decrypt.

>>> from cinder.volume.drivers.ibm.ibm_storage import cryptish
>>>
>>> type(cryptish.decrypt(cryptish.encrypt('cinder')))
<class 'bytes'>

Here is the stack trace of error:

2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager Traceback (most recent call last):
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager File "/usr/lib/python3.6/site-packages/cinder/volume/drivers/ibm/ibm_storage/xiv_proxy.py", line 3495, in _init_xcli
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager ca_certs=path)
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager File "/usr/lib/python3.6/site-packages/pyxcli/client.py", line 237, in connect_multiendpoint_ssl
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager validate)
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager File "/usr/lib/python3.6/site-packages/pyxcli/client.py", line 255, in _initiate_client_for_multi_endpoint
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager client = cls(transport, usr, pwd)
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager File "/usr/lib/python3.6/site-packages/pyxcli/client.py", line 186, in __init__
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager self._populate_commands()
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager File "/usr/lib/python3.6/site-packages/pyxcli/client.py", line 89, in _populate_commands
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager for info in self.execute("help"):
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager File "/usr/lib/python3.6/site-packages/pyxcli/client.py", line 103, in execute
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager return self.execute_remote(None, cmd, **kwargs)
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager File "/usr/lib/python3.6/site-packages/pyxcli/client.py", line 321, in execute_remote
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager remote_target)
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager File "/usr/lib/python3.6/site-packages/pyxcli/client.py", line 284, in _build_command
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager data.replace(options["password"], "XXX")
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager TypeError: replace() argument 1 must be str, not bytes
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager During handling of the above exception, another exception occurred:
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager Traceback (most recent call last):
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager File "/usr/lib/python3.6/site-packages/cinder/volume/manager.py", line 474, in _init_host
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager self.driver.do_setup(ctxt)
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager File "/usr/lib/python3.6/site-packages/cinder/volume/drivers/ibm/ibm_storage/ibm_storage.py", line 125, in do_setup
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager self.proxy.setup(context)
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager File "/usr/lib/python3.6/site-packages/cinder/volume/drivers/ibm/ibm_storage/proxy.py", line 68, in wrapper
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager result = fnc(self, *args, **kwargs)
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager File "/usr/lib/python3.6/site-packages/cinder/volume/drivers/ibm/ibm_storage/xiv_proxy.py", line 180, in setup
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager self.ibm_storage_cli = self._init_xcli(self.active_backend_id)
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager File "/usr/lib/python3.6/site-packages/cinder/volume/drivers/ibm/ibm_storage/proxy.py", line 68, in wrapper
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager result = fnc(self, *args, **kwargs)
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager File "/usr/lib/python3.6/site-packages/cinder/volume/drivers/ibm/ibm_storage/xiv_proxy.py", line 3509, in _init_xcli
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager raise self._get_exception()(err_msg)
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager cinder.exception.CinderException: Unable to connect to IBM Storage: replace() argument 1 must be str, not bytes
2020-04-06 08:48:11.539 11484 ERROR cinder.volume.manager
2020-04-06 08:48:11.541 11484 ERROR powervc_cinder.volume.m