On 3/7/2018 4:57 PM, C W wrote:

I am new to OOP. I'm a bit confused about the following code.

class Clock(object):
     def __init__(self, time):
         self.time = time
     def print_time(self):
         time = '6:30'

Local name 'time' is bound to '6:30'.
Attribute 'time' of the 'self' instance is bound to '5:30' because of the call and initization. You asked to print the latter. If you write 'print(time)' you will see '6:30'.

clock = Clock('5:30')

I set time to 6:30, but it's coming out to 5:30. I guess it's because I
passed in 5:30, so, it's replaced?

How does line-by-line execution run inside a frame? How does __init__ work?
I understand you must have __init__. Is it run before print_time(), if so,
why don't I just set self.time = '6:30' instead of self.time = time?


Terry Jan Reedy


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