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calling a method inside a class-Python 

class Time:
 def __init__(self,x,y,z):
 self.hour=x
 self.minute=y
 self.second=z
 def __str__(self):
 return "({:02d}:{:02d}:{:02d})".format(self.hour, self.minute, self.second)
 def time_to_int(time):
 minutes=time.hour*60+time.minute
 seconds=minutes*60+time.second
 return seconds
 def int_to_time(seconds):
 time=Time()
 minutes,time.second=divmod(seconds,60)
 time.hour,time.minute=divmod(minutes,60)
 return time
 def add_time(t1,t2):
 seconds=time_to_int(t1)+time_to_int(t2)
 return int_to_time(seconds)
start=Time(9,45,00)
running=Time(1,35,00)
done=add_time(start,running)
print(done)

I am new to python and i've been doing some practice lately.I came across a question and i've written the code for the same.But I am repeatedly getting an error: "add_time is not defined". I tried defining a main() method but then it doesn't print anything.Please help.

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    Your answer could be improved with additional supporting information. Please edit to add further details, such as citations or documentation, so that others can confirm that your answer is correct. You can find more information on how to write good answers in the help center. Commented Feb 24, 2022 at 19:59

lang-py

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