diff --git a/docs/pyerrors/misc.html b/docs/pyerrors/misc.html
index 91274d64..dfed6056 100644
--- a/docs/pyerrors/misc.html
+++ b/docs/pyerrors/misc.html
@@ -150,10 +150,11 @@
def _assert_equal_properties(ol, otype=Obs):
- for o in ol:
+ if not isinstance(ol[0], otype):
+ raise Exception("Wrong data type in list.")
+ for o in ol[1:]:
if not isinstance(o, otype):
raise Exception("Wrong data type in list.")
- for o in ol[1:]:
if not ol[0].is_merged == o.is_merged:
raise Exception("All Obs in list have to be defined on the same set of configs.")
if not ol[0].reweighted == o.reweighted: