added exception for KeyError #10
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Hello!
Apparently this module breaks when there're docker volumes present. On one of my hosts I get the following error:
Traceback (most recent call last):
File "./dpinventory-agent.py", line 89, in
blkd = BlkDiskInfo()
File "/usr/local/lib/python3.6/site-packages/blkinfo/wrappers.py", line 58, in init
self._disks = LsBlkWrapper._build_disk_tree()
File "/usr/local/lib/python3.6/site-packages/blkinfo/wrappers.py", line 156, in _build_disk_tree
disk_tree[p[0]]['children'].append(disk_tree[name])
KeyError: 'docker-253:4-50749888-ce14c7ed98ed9fa04f3c82e7a22255eae1c606620e805b6612c00e7ae879'
I don't think docker volumes can be regarded as actual blk devices so simply skipping them seems reasonable to me.