switch test framework to use py.test instead of nose

.travis.yml

@@ -5,4 +5,5 @@ python:
 install:
   - "python setup.py -q install"
 # command to run tests
-script: nosetests --with-doctest
+#script: nosetests --with-doctest
+script: py.test run-tests.py ./pywb/ --doctest-modules --ignore=setup.py

pywb/utils.py

@@ -224,14 +224,16 @@ def unsurt(surt):
 
 
 #=================================================================
-# Support for bulk doctest testing via nose
+# Support for bulk doctest testing via nose or py.test
 # nosetests --with-doctest
+# py.test --doctest_modules
 
 import sys
-is_in_nose = sys.argv[0].endswith('nosetests')
+is_in_testtool = any(sys.argv[0].endswith(tool) for tool in ['py.test', 'nosetests'])
 
 def enable_doctests():
-    return is_in_nose
+    return is_in_testtool
+
 
 def test_data_dir():
     import os

setup.py

@@ -12,6 +12,6 @@ setuptools.setup(name='pywb',
         license='GPL',
         packages=['pywb'],
         install_requires=['uwsgi', 'rfc3987', 'chardet', 'redis', 'jinja2', 'surt', 'pyyaml', 'WebTest'],
-        # test_suite='?',   # not sure how to run doctests here
+        tests_require['WebTest', 'pytest'],
         zip_safe=False)