Python Questions

March 20, 2023

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Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /home/u797631661/domains/codermantra.com/public_html/wp-includes/formatting.php on line 449

Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /home/u797631661/domains/codermantra.com/public_html/wp-includes/formatting.php on line 449

Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /home/u797631661/domains/codermantra.com/public_html/wp-includes/formatting.php on line 449

Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /home/u797631661/domains/codermantra.com/public_html/wp-includes/formatting.php on line 449

Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /home/u797631661/domains/codermantra.com/public_html/wp-includes/formatting.php on line 449

Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /home/u797631661/domains/codermantra.com/public_html/wp-includes/formatting.php on line 449

Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /home/u797631661/domains/codermantra.com/public_html/wp-includes/formatting.php on line 449

Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /home/u797631661/domains/codermantra.com/public_html/wp-includes/formatting.php on line 449

Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /home/u797631661/domains/codermantra.com/public_html/wp-includes/formatting.php on line 449

Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /home/u797631661/domains/codermantra.com/public_html/wp-includes/formatting.php on line 449

Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /home/u797631661/domains/codermantra.com/public_html/wp-includes/formatting.php on line 449

Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /home/u797631661/domains/codermantra.com/public_html/wp-includes/formatting.php on line 449

Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /home/u797631661/domains/codermantra.com/public_html/wp-includes/formatting.php on line 449

Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /home/u797631661/domains/codermantra.com/public_html/wp-includes/formatting.php on line 449

Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /home/u797631661/domains/codermantra.com/public_html/wp-includes/formatting.php on line 449

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Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /home/u797631661/domains/codermantra.com/public_html/wp-includes/formatting.php on line 449

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455

Python Questions

1 / 15

1. Which keyword is used for function in Python language?

A. Function

B. def

C. Fun

D. Define

2 / 15

2. Study the following code:

x = [‘XX’, ‘YY’]
for i in a:
i.lower()
print(a)

What will be the output of this program?

A. [‘XX’, ‘YY’]

B. [‘xx’, ‘yy’]

C. [XX, yy]

D. None of these

3 / 15

What will be the datatype of the var in the below code snippet?

var = 10
print(type(var))
var = "Hello"
print(type(var))

A. str and int

B. int and int

C. str and str

D. int and str

4 / 15

4. Which one of the following syntaxes is the correct syntax to read from a simple text file stored in ”d:python.txt”?

A. Infile = open(file=''d:\python.txt'', ''r'')

B. Infile = open(''d:python.txt'',''r'')

C. Infile = open(''d:\python.txt'', ''r'')

D. Infile = open.file(''d:\python.txt'',''r'')

5 / 15

5. Let A and B be objects of class Foo. Which functions are called when print(A + B) is executed?

A. __add__(), __str__()

B. __str__(), __add__()

C. __sum__(), __str__()

D. __str__(), __sum__()

6 / 15

6. What will be the output of the following Python code?

places = ['Bangalore', 'Mumbai', 'Delhi']

places1 = places
places2 = places[:]

places1[1]="Pune"
places2[2]="Hyderabad"
print(places)

A. [‘Bangalore’, ‘Pune’, ‘Hyderabad’]

B. [‘Bangalore’, ‘Pune’, ‘Delhi’]

C. [‘Bangalore’, ‘Mumbai’, ‘Delhi’]

D. [‘Bangalore’, ‘Mumbai’, ‘Hyderabad’]

7 / 15

7. What will be the output of the following Python code?

    x = 50

    def func(x):

        print('x is', x)

        x = 2

        print('Changed local x to', x)

    func(x)

    print('x is now', x)

A. x is 50 Changed local x to 2 x is now 50

B. x is 50 Changed local x to 2 x is now 2

C. x is 50 Changed local x to 2 x is now 100

D. None of the mentioned

8 / 15

8. Which of the following is used to define a block of code in Python language?

A. Indentation

B. Keys

C. Brackets

D. All of the above

9 / 15

9. Which of the following is false regarding conditional statement in Python?

A. If-elif is the shortcut for the if-else chain

B. We use the dictionary to replace the Switch case statement

C. We cannot use python classes to implement the switch case statement

D. None of the mentioned above

10 / 15

10. What will be the output of the following Python code?

class Demo:
    def __new__(self):
        self.__init__(self)
        print("Demo's __new__() invoked")
    def __init__(self):
        print("Demo's __init__() invoked")
class Derived_Demo(Demo):
    def __new__(self):
        print("Derived_Demo's __new__() invoked")
    def __init__(self):
        print("Derived_Demo's __init__() invoked")
def main():
    obj1 = Derived_Demo()
    obj2 = Demo()
Main()

A. Derived_Demo’s __init__() invoked Derived_Demo's __new__() invoked Demo's __init__() invoked Demo's __new__() invoked

B. Derived_Demo's __new__() invoked Demo's __init__() invoked Demo's __new__() invoked

C. Derived_Demo's __new__() invoked Demo's __new__() invoked

D. Derived_Demo’s __init__() invoked Demo's __init__() invoked

11 / 15

11. What will be the output of the following Python code?

import re
s = 'abc123 xyz666 lmn-11 def77'
re.sub(r'b([a-z]+)(d+)', r'21:', s)

A. ‘123abc: 666xyz: lmn-11 77def:’

B. ‘77def: lmn-11: 666xyz: 123abc’

C. ‘abc123:’, ‘xyz666:’, ‘lmn-11:’, ‘def77:’

D. ‘abc123: xyz666: lmn-11: def77’

12 / 15

12. As what datatype are the *args stored, when passed into a function?

A. list

B. tuple

C. dictionary

D. none of the above

13 / 15

13. Which of the following functions can be used to read data from a file using a file descriptor?

A. os.reader()

B. os.read()

C. os.quick_read()

D. os.scan()

14 / 15

14. What will be the output of the following Python program?

z=set('abc')
z.add('san')
z.update(set(['p', 'q']))
Z

A. {‘a’, ‘c’, ‘c’, ‘p’, ‘q’, ‘s’, ‘a’, ‘n’}

B. {‘abc’, ‘p’, ‘q’, ‘san’}

C. {‘a’, ‘b’, ‘c’, ‘p’, ‘q’, ‘san’}

D. {‘a’, ‘b’, ‘c’, [‘p’, ‘q’], ‘san}

15 / 15

15. In Python, the break and continue statements, together are called ___ statement.

A. Jump

B. goto

C. compound

D. None of the mentioned above

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