Produits Entr'ouvert » w.c.s.

https://sentry.entrouvert.org/entrouvert/publik/issues/113032/

TypeError: list indices must be integers or slices, not str
  File "django/template/base.py", line 829, in _resolve_lookup
    current = current[bit]
  File "wcs/data_sources.py", line 1174, in __getitem__
    return list(self)[key]

KeyError: '0'
(25 additional frame(s) were not displayed)
...
  File "django/template/base.py", line 671, in resolve
    obj = self.var.resolve(context)
  File "wcs/qommon/template.py", line 340, in variable_resolve
    value = variable_resolve_orig(self, context)
  File "django/template/base.py", line 796, in resolve
    value = self._resolve_lookup(context)
  File "django/template/base.py", line 837, in _resolve_lookup
    current = getattr(current, bit)
  File "wcs/data_sources.py", line 1185, in __getattr__
    return self._data[attr]