Important Questions for Class 12 Computer Science (Python) – Networking and Open Source ConceptsTOPIC-1 Communication Technologies Very Short Answer Type Questions (1 Mark each)Question 1: Identify the Domain
A domain is a pool of values from which the actual values appearing in a given column are drawn. For example: The values appearing in the Supp# column of both the suppliers table and the Shipment table are drawn from the same domain. Question 18: Expand the following: SQL DBMS Answer: ...
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Decorator for classJust use inheritance Use decorator, that returns classdef addID(original_class): orig_init = original_class.__init__ # Make copy of original __init__, so we can call it without recursion def __init__(self, id, *args, **kws): self.__id = id self.getId = ...
Applying for a Python job can be daunting, especially if you’re not prepared for the possible questions you might be asked during the interview. However, if you prepare well enough, the result can be very rewarding. To help you along the way, we’ve compiled 20 of the top Python interv...
(y))for c, y in zip(df.continent, df['1957'])] klass =['red'if(y1-y2)<0else'green'for y1, y2 in zip(df['1952'], df['1957'])] # draw line # https://stackoverflow.com/questions/36470343/how-to-draw-a-line-with-matplotlib/36479941 def newline(p1, p2, color='black')...
代码语言:javascript 代码运行次数:0 运行 复制 for char in name: print(char) j a s o n 特别要注意,Python的字符串是不可变的(immutable)。因此,用下面的操作,来改变一个字符串内部的字符是错误的,不允许的。 代码语言:javascript 代码运行次数:0 运行...
So, the object's id is unique only for the lifetime of the object. After the object is destroyed, or before it is created, something else can have the same id. But why did the is operator evaluate to False? Let's see with this snippet. class WTF(object): def __init__(self): ...
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The @property decorator is used to customize getters and setters for class attributes. Expand the box below for an example using these decorators:Example using built-in class decoratorsShow/Hide Next, define a class where you decorate some of its methods using the @debug and @timer decorators ...