Circle class. 1. Modify the Circle class given in 3 ways: (a), (b) & (c). (a) - implement __str__ and __repr__ methods exactly as shown below.

(b) - make the radius a property and add an attribute radius_log that is a list containing radius values that have belonged to the circle, where the last item in the list is the value of the current radius. In other words, I want you to keep a log of the changes to the radius of the circle object. Each time the radius changes, add the new value to the list.

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EXAMPLE CODE TO MODIFY: for (a) & (b)

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EXAMPLE CODE FOR (c)

(c) Once you have completed parts (a) and (b), modify the Circle class so that it will raise a ValueError if the radius or diameter is set to less than zero. All of the REPL commands from (a) and (b) should still work!

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Update:

>>> circle = Circle() Circle (radius=1) Traceback (most recent call last) from HW5 import Circle circle circle.radius1 File "stdins", line 1, in >> circle . diameter =-2 raise ValueError ("Radius cannot be negative!") Traceback (most recent call last): File "stdin", line 1, in File "/Users/diane/DevProjects/ucsd/Hw5. py", line 41, in diameter self. radius diameter2 File "/Users/diane/DevProjects/ucsd/Hw5.py line 52, in radius ValueError: Radius cannot be negative! >>> circ le2 = Circle (-2) raise ValueError("Radius cannot be negative!") Traceback (most recent call last): File File " .Users/diane/DevProjects/ucsd/HW5.py", line 26, in --init self. radius radius File /Users/diane/DevProjects/ucsd/HW5. py", line 52, in radius raise ValueError("Radius cannot be negative!") ValueError: Radius cannot be negative