def setUp(self): self.sublime_mock = SublimeMock() self.sublime_mock.sublime.log.return_value self.sublime_plugin_mock = SublimeMock() self.sublime_plugin_mock.sublime.log.return_value = True modules = { 'sublime': self.sublime_mock, 'sublime_plugin': self.sublime_plugin_mock } self.module_patcher = patch.dict('sys.modules', modules) self.module_patcher.start() from ZenTabs import ZenTabsListener self.tabs_mock = ZenTabsListener()