PYTHON QUIZ 7(Solution with the answer)

PYTHON QUIZ 7

Note :- I have tried my best to give you the correct answer, I do not Guarantee that all the answers given by me are correct, so do it at your own risk, I just want to help you a little , so that you can understand the question.

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Q1. Naming convention of a module of a python file is ?

·       All names should be lower case.

·       Underscore can be used.

·       Should be short

·       All of the above.

Ans(d)- All of the above

Reason: Naming convention of a module should have short, all-lowercase names. Underscores can be used in the module name if it improves readability.

 

Q2. The following code is saved in a file hello.py (using python 3.X version):

def print_hello():

print ("Hello")

 

Now consider the following interaction on Python console, assuming hello.py

is in the current directory where the console is invoked:

 

>>> import hello 

  >>> hello.print_hello()

What will be the output of the code ?

Ans(b)- "Hello" will be printed (without quotes)

Reason: Import is used in code it is used to import hello.py program with our environment. Then hello.print_hello() execute the print_hello() function and print Hello as output so 2nd option is correct.

 

Q3. What is the output of the following python code?

class hello:

     def __init__(self,a="Visit Prutor.ai website"):

         self.a=a

 

     def display(self):

         return 0

obj=hello()

print( obj.display() )

Ans(b)- 0

Reason: Constructor set the value of variable as a given string then print(obj.display()) call and display method execute and return 0. So 0 will be printed as output.

 

Q4. What is the output of the following python code?

class test:

    def __init__(self,x=''):

        self.x=x

 

    def display(self):

        print(self.x)

obj=test()

obj.display()

Ans(a)- Executes normally and doesn’t display anything

Reason: obj=test() will create an object and the constructor  _int_  initialise x to blank string, after display method called in next line and it prints the blank string as output.

 

Q5. What does Instantiation mean in terms of Object Oriented Programming?

·       Deleting an instance of class

·       Creating an instance of class

·       Copying an instance of class

·       Modifying an instance of class

 Ans(b)- Creating an instance of class

Reason: instantiation means creating an instance or object oriented program. So 2nd option is correct.

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