ligolw segments CLI utils fail on ImportErrors
As an example,
[patrick.godwin@ldas-pcdev5 ~] $ ligolw_segment_diff --help Traceback (most recent call last): File "/usr/bin/ligolw_segment_diff", line 44, in <module> from glue.ligolw import utils ModuleNotFoundError: No module named 'glue.ligolw'
Now, these are actually part of the lscsoft-glue library rather than ligo-lw but at its current state, I believe this has been broken since the ligolw module in glue was removed. It's not clear to me if the right thing to do is move these utilities over to ligolw or to fix the imports in the glue library.