I have Python's IDLE installed (even though I don't remember the last time I used it), and I tried out a True = False, but it returned a SyntaxError: assignment to keyword. Different version maybe?
In any case, OP's question is kind of easy to answer whether you know Python or not.
x = 5
y = 3
x = y // since y equals 3, x will also become 3
// Now if you try out:
y = x // Remember that the x's current value is 3? This 3 will be assigned to y
y // this will return 3
Assuming it's possible to treat a keyword as a variable name, True = False will make True's value became False, so when you assign True's new value (which is False) to False, False will become (errr... remain) False.