In Python IDLE: In the attached image is a class. I have used highlighter to outline a small segment of the code. I want to know- what does this portion of code do? What is the purpose of this code segment? Why do I need this peice of code?
In Python IDLE: In the attached image is a class. I have used highlighter to outline a small segment of the code. I want to know- what does this portion of code do? What is the purpose of this code segment? Why do I need this peice of code?
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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In Python IDLE: In the attached image is a class. I have used highlighter to outline a small segment of the code. I want to know- what does this portion of code do? What is the purpose of this code segment? Why do I need this peice of code?
Transcribed Image Text:lass Volume:
# constructor with default value of vol = 0
init_(self, vol=0):
self.set(vol)
%3D
def
# String representation of the object
repr_(self) -> str:
return f"Volume({str(self.volume)})"
def set(self, vol):
def
self.volume = vol
%3D
if self.volume > 11:
self.volume = 11
%3D
if self.volume < 0:
self.volume = 0
def get(self):
return selfuvolume
def up(self, amount):
self.set(self.volume + amount)
def down(self, amount):
self.set(self.volume - amount)
eq_(self, other) -> bool:
if isinstance(other, Volume):
def
return self.volume == other.volume
else:
# if wrong type, just return false
return False
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