diff --git a/backtrader/lineiterator.py b/backtrader/lineiterator.py index 3aad26af1..7ed6fdfbb 100644 --- a/backtrader/lineiterator.py +++ b/backtrader/lineiterator.py @@ -22,6 +22,10 @@ unicode_literals) import collections +try: + collectionsAbc = collections.abc +except AttributeError: + collectionsAbc = collections import operator import sys @@ -226,7 +230,7 @@ def bindlines(self, owner=None, own=None): if isinstance(owner, string_types): owner = [owner] - elif not isinstance(owner, collections.Iterable): + elif not isinstance(owner, collectionsAbc.Iterable): owner = [owner] if not own: @@ -234,7 +238,7 @@ def bindlines(self, owner=None, own=None): if isinstance(own, string_types): own = [own] - elif not isinstance(own, collections.Iterable): + elif not isinstance(own, collectionsAbc.Iterable): own = [own] for lineowner, lineown in zip(owner, own):