Execute script in IDLE with parameters

[Larz60+]

I don't believe that idle (which is not a very good IDE, even though it comes with python) has a mechanism to pass parameters from within the GUI, but you can emulate this by setting sys.argv.
Example:

>>> import sys
>>> 
>>> sys.argv = [sys.argv[0], '-a', '-b', '-c', 'myfile.txt']
>>> 
>>> print(sys.argv)
['', '-a', '-b', '-c', 'myfile.txt']
>>>