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Update to collections.abc #465

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Update to collections.abc #465

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7 changes: 6 additions & 1 deletion backtrader/cerebro.py
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,11 @@
import itertools
import multiprocessing

try:
collectionsAbc = collections.abc
except AttributeError:
collectionsAbc = collections

import backtrader as bt
from .utils.py3 import (map, range, zip, with_metaclass, string_types,
integer_types)
Expand Down Expand Up @@ -330,7 +335,7 @@ def iterize(iterable):
for elem in iterable:
if isinstance(elem, string_types):
elem = (elem,)
elif not isinstance(elem, collections.Iterable):
elif not isinstance(elem, collectionsAbc.Iterable):
elem = (elem,)

niterable.append(elem)
Expand Down