for line in tbl_cmp_lst:
row = [line[0], ]
for idx, itm in enumerate(line[1:]):
- if itm is None:
+ if itm is None or not isinstance(itm, dict) or\
+ itm.get(u'mean', None) is None or \
+ itm.get(u'stdev', None) is None:
row.append(u"NT")
row.append(u"NT")
else: