python - module installation - Mock -

i trying mock class following code snippet:

import unittest mock import mock  class testmocking(unittest.testcase):    def test_mock_method_returns(self):        my_mock = mock()        my_mock.my_method.return_value = "hello"        self.assertequals("hello",my_mock.my_method())   if __name__ == "__main__":      unittest.main() 

while running code, following error:

importerror: no module named mock 

i have installed mock following command: pip install mock

and have following output:

collecting mock   downloading mock-2.0.0-py2.py3-none-any.whl (56kb)   100% |████████████████████████████████| 61kb 1.4mb/s  requirement satisfied: six>=1.9 in    /home/sajjad/dokument/installedprogram/anaconda3/lib/python3.5/site-packages (from mock)   collecting pbr>=0.11 (from mock)   downloading pbr-2.0.0-py2.py3-none-any.whl (98kb)   100% |████████████████████████████████| 102kb 3.4mb/s    installing collected packages: pbr, mock   installed mock-2.0.0 pbr-2.0.0 

you using python 3.5; mock part of standard library in version, , don't need install it. should import this:

from unittest.mock import mock