If you search for a hostname that starts with 'or' or 'and', the backend throws exceptions.TypeError:
eising@ipam:~$ nipap address list andybandy
Searching for prefixes in any VRF...
Command failed: <type 'exceptions.TypeError'>:unhashable type: 'dict'
eising@ipam:~$ nipap address list orthanc
Searching for prefixes in any VRF...
Command failed: <type 'exceptions.TypeError'>:unhashable type: 'dict'
However, it works if it's inside a string...
eising@ipam:~$ nipap address list fork
Searching for prefixes in any VRF...
No addresses matching 'fork' found.