cannot mock import statement using unittest.patch

Question

I have an import statement inside a function and I want to mock that import statement using patch, but couldn't.

    class A():
      """mock object"""
      @staticmethod
      def run():
        print('ran')

    @patch('something')
    def test_run(self, something):
      something = A()

      # my function has this statement
      from something import run

      run(....)

got

    E   TypeError: Need a valid target to patch. You supplied: 'something'