Using Nose:

To run all tests:

nosetests

To run only one module of tests:

nosetests test.test_example1

to run only one test in one module:

nosetests test.test_example1:Test.test_example1_func

TEST DO NOT NEED TO BE UNIT TEST
can be a simple python module with the word 'test' in the name

to run the test without unittest

nosetests test.test_simple_example1:test_simple_example1_func