Import ABC from collections.abc

bsuite/logging/logging_utils.py

@@ -16,7 +16,7 @@
 # ============================================================================
 """Read functionality for local csv-based experiments."""
 
-import collections
+import collections.abc
 import copy
 from typing import Any, Callable, List, Mapping, Sequence, Tuple, Union
 
@@ -73,7 +73,7 @@ def load_multiple_runs(
   # Convert any inputs to dictionary format.
   if isinstance(path_collection, six.string_types):
     path_collection = {path_collection: path_collection}
-  if not isinstance(path_collection, collections.Mapping):
+  if not isinstance(path_collection, collections.abc.Mapping):
     path_collection = {path: path for path in path_collection}
 
   # Loop through multiple bsuite runs, and apply single_load_fn to each.