AttributeError: 'SysfsAttributes' object has no attribute 'sas_address'

[griznog]

I'm setting up a new system identical (in theory) to three other systems on which this works fine. On the new setup I get this error from sas_devices:

# sas_devices
Found 3 SAS hosts
Found 9 SAS expanders
Traceback (most recent call last):
  File "/usr/lib/python3.6/site-packages/sasutils/sysfs.py", line 166, in get
    self.values[key] = sysfs.get(self.paths[key], absolute=True)
KeyError: 'sas_address'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/bin/sas_devices", line 11, in <module>
    load_entry_point('sasutils==0.3.10', 'console_scripts', 'sas_devices')()
  File "/usr/lib/python3.6/site-packages/sasutils/cli/sas_devices.py", line 307, in main
    sas_devices_cli.print_end_devices(root)
  File "/usr/lib/python3.6/site-packages/sasutils/cli/sas_devices.py", line 147, in print_end_devices
    enclosures[encldev.attrs.sas_address] = encldev
  File "/usr/lib/python3.6/site-packages/sasutils/sysfs.py", line 176, in __getitem__
    return self.get(key)
  File "/usr/lib/python3.6/site-packages/sasutils/sysfs.py", line 172, in get
    (self.__class__.__name__, key))
AttributeError: 'SysfsAttributes' object has no attribute 'sas_address'

Multipath is (mostly) working normally but since I usually use sas_devices to troubleshoot that I'm having slow progress figuring out exactly what is causing this to fail.

[repeatdefender]

Edit: Seems this was due to a device lacking a sas address.
Found with sg_scan: LSI VirtualSES

I have also experienced this issue:

# sas_devices -v
Found 1 SAS hosts: host1
...
Found 16 SAS expanders
Traceback (most recent call last):
  File "/usr/local/lib/python3.8/dist-packages/sasutils/sysfs.py", line 169, in get
    self.values[key] = sysfs.get(self.paths[key], absolute=True)
KeyError: 'sas_address'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/bin/sas_devices", line 8, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.8/dist-packages/sasutils/cli/sas_devices.py", line 311, in main
    sas_devices_cli.print_end_devices(root)
  File "/usr/local/lib/python3.8/dist-packages/sasutils/cli/sas_devices.py", line 147, in print_end_devices
    enclosures[encldev.attrs.sas_address] = encldev
  File "/usr/local/lib/python3.8/dist-packages/sasutils/sysfs.py", line 179, in __getitem__
    return self.get(key)
  File "/usr/local/lib/python3.8/dist-packages/sasutils/sysfs.py", line 174, in get
    raise AttributeError("%r object has no attribute %r" %
AttributeError: 'SysfsAttributes' object has no attribute 'sas_address'

[thiell]

Thanks for the report! Could you please try this new release and let me know if your issue is fixed?
https://github.com/stanford-rc/sasutils/releases/tag/v0.3.13