Skip chmod test on windows

sleap_io/model/labels.py

@@ -660,13 +660,19 @@ def make_training_splits(
  labels.suggestions = []
  labels.clean()
 
- # Make splits.
+ # Make train split.
  labels_train, labels_rest = labels.split(n_train, seed=seed)
+
+ # Make test split.
  if n_test is not None:
  if n_test < 1:
  n_test = (n_test * len(labels)) / len(labels_rest)
  labels_test, labels_rest = labels_rest.split(n=n_test, seed=seed)
- if n_val is not None:
+ else:
+ labels_test = labels_rest
+
+ # Make val split.
+ if n_val is not None or (isinstance(n_val, float) and n_val == 1.0):
  if n_val < 1:
  n_val = (n_val * len(labels)) / len(labels_rest)
  labels_val, _ = labels_rest.split(n=n_val, seed=seed)