Fix collections import warnings for Python 3.7

timhoffm · timhoffm · commit 8810b5e93e1b · 2018-07-28T02:13:31.000+02:00
diff --git a/lib/matplotlib/__init__.py b/lib/matplotlib/__init__.py
@@ -115,7 +115,7 @@
 """)
 
 import atexit
-from collections import MutableMapping
+from collections.abc import MutableMapping
 import contextlib
 import distutils.version
 import functools
diff --git a/lib/matplotlib/colors.py b/lib/matplotlib/colors.py
@@ -44,7 +44,7 @@
 All string specifications of color, other than "CN", are case-insensitive.
 """
 
-from collections import Sized
+from collections.abc import Sized
 import itertools
 import re
 
diff --git a/lib/matplotlib/markers.py b/lib/matplotlib/markers.py
@@ -150,7 +150,7 @@
 .. |m37| image:: /_static/markers/m37.png
 """
 
-from collections import Sized
+from collections.abc import Sized
 from numbers import Number
 
 import numpy as np
diff --git a/lib/matplotlib/rcsetup.py b/lib/matplotlib/rcsetup.py
@@ -13,7 +13,7 @@
 parameter set listed here should also be visited to the
 :file:`matplotlibrc.template` in matplotlib's root source directory.
 """
-from collections import Iterable, Mapping
+from collections.abc import Iterable, Mapping
 from functools import reduce
 import operator
 import os
