$ cldf validate data/metadata.json
Traceback (most recent call last):
File "/home/forkel/venvs/austrogames/bin/cldf", line 8, in <module>
sys.exit(main())
File "/home/forkel/venvs/austrogames/lib/python3.5/site-packages/pycldf/__main__.py", line 26, in main
return args.main(args) or 0
File "/home/forkel/venvs/austrogames/lib/python3.5/site-packages/pycldf/commands/validate.py", line 15, in run
return 0 if get_dataset(args).validate(log=args.log) else 1
File "/home/forkel/venvs/austrogames/lib/python3.5/site-packages/pycldf/dataset.py", line 467, in validate
if not self.tablegroup.check_referential_integrity(log=log):
File "/home/forkel/venvs/austrogames/lib/python3.5/site-packages/csvw/metadata.py", line 817, in check_referential_integrity
for key, kgrp in itertools.groupby(grp, lambda x: x[1])]
File "/home/forkel/venvs/austrogames/lib/python3.5/site-packages/csvw/metadata.py", line 817, in <listcomp>
for key, kgrp in itertools.groupby(grp, lambda x: x[1])]