diff options
Diffstat (limited to 'gn3/computations/slink.py')
| -rw-r--r-- | gn3/computations/slink.py | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gn3/computations/slink.py b/gn3/computations/slink.py index bec8597..d6f6028 100644 --- a/gn3/computations/slink.py +++ b/gn3/computations/slink.py @@ -4,5 +4,14 @@ class LengthError(BaseException): class MirrorError(BaseException): pass +def raise_valueerror_if_data_is_not_lists_or_tuples(lists): + """Check that `lists` is a list of lists: If not, raise an exception.""" + def is_list_or_tuple(item): + return type(item) == type([]) or type(item) == type(tuple) + + if (not is_list_or_tuple(lists)) or (not all(map(is_list_or_tuple, lists))): + raise ValueError("Expected list or tuple") + def nearest(lists, i, j): + raise_valueerror_if_data_is_not_lists_or_tuples(lists) return None |