Support Python 3.7 (#375)

* Import collection ABC's from correct module
   They were moved into collections.abc in 3.3 and will be deprecated
   from collections in 3.8.

3 files changed, 8 insertions, 2 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 747267b..86e16ff 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,8 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Added
 
+- Support for Python 3.7
+
 [v1.6.4][1.6.4]
 -------------------------------------------------------------------------
 ### Fixed
diff --git a/jwt/api_jwt.py b/jwt/api_jwt.py
index 6caeecf..0836ec0 100644
--- a/jwt/api_jwt.py
+++ b/jwt/api_jwt.py
@@ -1,9 +1,13 @@
 import json
 import warnings
 from calendar import timegm
-from collections import Iterable, Mapping
 from datetime import datetime, timedelta
 try:
+    # Importing ABCs from collections will be removed in PY3.8
+    from collections.abc import Iterable, Mapping
+except ImportError:
+    from collections import Iterable, Mapping
+try:
     # import required by mypy to perform type checking, not used for normal execution
     from typing import Callable, Dict, List, Optional, Union # NOQA
 except ImportError:
diff --git a/tox.ini b/tox.ini
index 5b78ba8..3c93faa 100644
--- a/tox.ini
+++ b/tox.ini
@@ -15,4 +15,4 @@ commands =
 deps =
     flake8
     flake8-import-order
-    pep8-naming
\ No newline at end of file
+    pep8-naming