I wrapped requires('gui') as submitted in patch2. But this time commands "python -m test test_idle" and with -ugui does not skip delegatortest (it runs successfully to both).

I took Lib/test/test_tk.py as an example.
It calls runtktests.get_tests using support.run_unittest from test module.
Exploring Lib/tkinter/test/runtktests.py the get_tests method begins like


....
def get_tests(text=True, gui=True, packages=None):
    """Yield all the tests in the modules found by get_tests_modules.
    If nogui is True, only tests that do not require a GUI will be
    returned."""
    attrs = []
    if text:
        attrs.append('tests_nogui')
    if gui:
        attrs.append('tests_gui')
....
   ....
also notice the main method calles "test.support.use_resources = ['gui']"
Now the tktests have the line * require('gui') * before the class bigins, for example have a look on test_textensions.py 

So do we have to come up with the same procedure to skip and play with gui and non-gui tests for IDLE ? correct me if I am wrong anywhere.