Add Python 3.8 support (#16)

Fix #15

Author: nicoddemus

.gitignore

@@ -1,5 +1,6 @@
 *._*
 *.pyc
+*.pyd
 *.pyo
 *.scssc
 *.so

.travis.yml

@@ -3,7 +3,7 @@ language: generic
 env:
     global:
         - PYMODULE=immutables
-        - RELEASE_PYTHON_VERSIONS="3.5 3.6 3.7"
+        - RELEASE_PYTHON_VERSIONS="3.5 3.6 3.7 3.8"
 
         - S3_UPLOAD_USERNAME=oss-ci-bot
         - S3_UPLOAD_BUCKET=magicstack-oss-releases
@@ -36,6 +36,12 @@ matrix:
           python: "3.7"
           env: BUILD=tests
 
+        - os: linux
+          dist: xenial
+          language: python
+          python: "3.8"
+          env: BUILD=tests
+
         - os: linux
           dist: trusty
           sudo: required
@@ -53,6 +59,9 @@ matrix:
         - os: osx
           env: BUILD=tests,wheels PYTHON_VERSION=3.7.0
 
+        - os: osx
+          env: BUILD=tests,wheels PYTHON_VERSION=3.8.0
+
 cache:
     pip
 

setup.py

@@ -48,6 +48,7 @@
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8',
         'Operating System :: POSIX',
         'Operating System :: MacOS :: MacOS X',
         'Operating System :: Microsoft :: Windows',

tests/test_map.py

@@ -1294,7 +1294,7 @@ def test_map_pickle(self):
             self.assertTrue(isinstance(uh, self.Map))
             self.assertEqual(h, uh)
 
-        with self.assertRaisesRegex(TypeError, "can't pickle"):
+        with self.assertRaisesRegex(TypeError, "can('t|not) pickle"):
             pickle.dumps(h.mutate())
 
     @unittest.skipIf(sys.version_info < (3, 7, 0), "__class_getitem__ is not available")