'Test that `__file__` is not set after `ipython -i file.py`'

@dec.skip_win32
def test_py_script_file_attribute_interactively(self):

    src = 'True\n'
    self.mktmp(src)
    (out, err) = tt.ipexec(self.fname, options=['-i'], commands=['"__file__"    in    globals()', 'exit()'])
    self.assertIn('False', out)
