Merge pull request #153 from sbraz/mock

Remove references to mock backport since mamba only supports Python 3

Pipfile

@@ -6,7 +6,6 @@ name = "pypi"
 [dev-packages]
 expects = ">=0.8.0"
 doublex-expects = ">=0.7.0rc2"
-mock = ">=2.0.0"
 sphinx = ">=1.6.5"
 sphinx-autobuild = ">=0.7.1"
 e1839a8 = {editable = true,path = "."}

setup.py

@@ -33,7 +33,7 @@
       include_package_data=True,
       zip_safe=False,
       install_requires=['clint', 'coverage'],
-      test_require=['expect', 'doublex', 'doublex-expects', 'mock'],
+      test_require=['expect', 'doublex', 'doublex-expects'],
       entry_points={
           'console_scripts': [
               'mamba = mamba.cli:main'

spec/mock_patch_example_spec.py

@@ -1,8 +1,5 @@
 from mamba import description, context, it
-try:
-    from unittest.mock import patch
-except ImportError:
-    from mock import patch
+from unittest.mock import patch
 
 from expects import expect, be