Fix DeprecationWarning in collections import
"DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated, and in 3.8 it will stop working from collections import Iterable, Sequence, Mapping, MutableMapping"
@@ -3,7 +3,7 @@ from copy import deepcopy
from six import iteritems, string_types, integer_types
import os
import imp
-from collections import Iterable, Sequence, Mapping, MutableMapping
+from collections.abc import Iterable, Sequence, Mapping, MutableMapping
import warnings
import numpy as np
import ctypes
