I am trying to mock out a class that is being called/initialised in a function.

def example_function():
    example_class = SomeClass(my_position, num_list, suit_list)


@mock.patch('.../SomeClass')
def test_example_function(mock_SomeClass):
    example_function()

When I run the above, I get:

NameError: name 'my_position' is not defined

However, I know that SomeClass is being mocked out, because if I set a breakpoint() in the line just above example_class = SomeClass(my_position, num_list, suit_list)
And print out SomeClass it says:

<MagicMock name='ShouldWePlayThisPreFlopHand' id='139711184614096'>

Any ideas how I can overcome this?

Some additional information: I am defining my_position as a global variable within the python package of example_function().
So when I run a unit test, my_position is not initialised/set.