chore(python3): migrate to python3.

setup.py

@@ -5,7 +5,7 @@
     name='enki',
     version='3.0.0',
     packages=find_packages(),
-    install_requires=['pybossa-client>=3.0.0, <3.0.1', 'pandas'],
+    install_requires=['pybossa-client>=3.0.0, <3.1.0', 'pandas'],
     # metadata for upload to PyPI
     author='Scifabric LTD',
     author_email='info@scifabric.com',

tests/base.py

@@ -107,5 +107,5 @@ def create_error_output(self, action, status_code, target,
         return error
 
     def check_error_output(self, res, err):
-        for k in err.keys():
+        for k in list(err.keys()):
             assert err[k] == res[k], err

tests/test_app.py

@@ -67,7 +67,7 @@ def test_explode_info_without_info_dict(self, Mock):
         e.get_tasks()
         result = e.explode_info(e.tasks[0])
         err_msg = "This item should not be exploded"
-        assert result.keys() == self.task.keys(), err_msg
+        assert list(result.keys()) == list(self.task.keys()), err_msg
 
     @patch('pbclient.requests.get')
     def test_explode_info_without_info_dict_file(self, Mock):
@@ -78,7 +78,7 @@ def test_explode_info_without_info_dict_file(self, Mock):
         e.get_tasks(json_file='tests/task_no_dict.json')
         result = e.explode_info(e.tasks[0])
         err_msg = "This item should not be exploded"
-        assert 'new_key' not in result.keys(), err_msg
+        assert 'new_key' not in list(result.keys()), err_msg
 
     @patch('pbclient.requests.get')
     def test_explode_info_with_info_dict(self, Mock):
@@ -91,9 +91,9 @@ def test_explode_info_with_info_dict(self, Mock):
         e.get_tasks()
         result = e.explode_info(e.tasks[0])
         err_msg = "This item should be exploded"
-        assert 'key' in result.keys(), err_msg
+        assert 'key' in list(result.keys()), err_msg
         err_msg = "This item should be escaped"
-        assert '_id' in result.keys(), err_msg
+        assert '_id' in list(result.keys()), err_msg
 
     @patch('pbclient.requests.get')
     def test_explode_info_with_info_dict_file(self, Mock):
@@ -104,9 +104,9 @@ def test_explode_info_with_info_dict_file(self, Mock):
         e.get_tasks(json_file='tests/task.json')
         result = e.explode_info(e.tasks[0])
         err_msg = "This item should be exploded"
-        assert 'key' in result.keys(), err_msg
+        assert 'key' in list(result.keys()), err_msg
         err_msg = "This item should be escaped"
-        assert '_id' in result.keys(), err_msg
+        assert '_id' in list(result.keys()), err_msg
 
     @raises(ProjectError)
     @patch('pbclient.requests.get')
@@ -319,12 +319,12 @@ def test_get_task_runs_when_some_tasks_have_no_taskruns(self, Mock):
         Mock.side_effect = [self.create_fake_request([self.task, self.ongoing_task], 200),
                             self.create_fake_request([], 200)]
         e.get_tasks()
-        print e.tasks
+        print(e.tasks)
         Mock.side_effect = [self.create_fake_request([self.taskrun], 200),
                             self.create_fake_request([], 200),
                             self.create_fake_request([], 200)]
         e.get_task_runs()
 
         assert len(e.task_runs[self.task['id']]) is 1
-        print self.ongoing_task
+        print(self.ongoing_task)
         assert e.task_runs[self.ongoing_task['id']] == []

tests/test_loaders.py

@@ -212,6 +212,6 @@ def assert_all_tasks_belong_to_project(tasks, project_id):
         assert task.project_id == project_id
 
 def assert_task_runs_grouped_by_task(task_runs):
-    for task in task_runs.keys():
+    for task in list(task_runs.keys()):
         for task_run in task_runs[task]:
             assert task == task_run.task_id, task_runs