Merge pull request #2 from phamk/python-38-compat

Change collections.Iterable to collections.abc.Iterable

tagulous/models/descriptors.py

@@ -291,7 +291,7 @@ def __set__(self, instance, value):
             # If it's a string, it must be a tag string
             manager.set_tag_string(value)
 
-        elif isinstance(value, collections.Iterable):
+        elif isinstance(value, collections.abc.Iterable):
             # An iterable goes in as a list of things that are, or can be
             # converted to, strings
             manager.set_tag_list(value)