Merge pull request numpy#14076 from charris/test-python-3.8

TST: Add 3.8-dev to travisCI testing.

.travis.yml

@@ -33,6 +33,7 @@ env:
 python:
   - 3.5
   - 3.6
+  - 3.8-dev
 matrix:
   include:
     - python: 3.7

numpy/core/tests/test_deprecations.py

@@ -101,7 +101,7 @@ def assert_deprecated(self, function, num=1, ignore_others=False,
                         (self.warning_cls.__name__, warning.category))
         if num is not None and num_found != num:
             msg = "%i warnings found but %i expected." % (len(self.log), num)
-            lst = [str(w.category) for w in self.log]
+            lst = [str(w) for w in self.log]
             raise AssertionError("\n".join([msg] + lst))
 
         with warnings.catch_warnings():

tools/travis-before-install.sh

@@ -36,6 +36,6 @@ fi
 
 
 pip install --upgrade pip setuptools
-pip install nose pytz cython pytest
+pip install pytz cython pytest
 if [ -n "$USE_ASV" ]; then pip install asv; fi
 popd