Python (PY) — Winter 2023

Define following terms and give 1 example for each 1. List Cloning 2. Global and Non-Local variables 3. String Slicing 4. Assert Statement 5. Tuple 6. Dictionary 7. ** Operator

Choose the correct answer for the following questions: 1. Which of the following is correct set of mutable sequence objects in Python?

List and Tuple c) List, Tuple and Dictionary

List and Dictionary d) Tuple and Dictionary 2. Which of the following is used as a constructor in Python class?

init() b) init(self) c) __init__(self) d) __init__() 3. __________________ is a mutable sequence object of python which utilizes Hash Table technique to search the data with key.

List b) Tuple c) Dictionary d) All of these 4. The ______ symbol along with the name of the decorator function can be placed above the definition of the function to be decorated works as an alternate way for decorating a function.

# b) @ c) $ d) & 5. Which of the following is correct syntax of “lambda” function used for total of two values?

total = lambda arg1, arg2: arg1 + arg2;

total = lambda [arg1, argu2[:[arg1 + arg2];

total = lambda arg1+arg2;

total = lambda 6. If str = “Mera Bharat Mahan”, what will be the output of print(x[-12:] ?

“Bharat Mahan” c) Error

“B” d) “Mera B” 7. What will be the output of following line? x = [“GTU”, “Python”, 12, 2023] print(“GTU” in x)1

True b) 0 c) GTU d) Error

Explain looping statements available in Python. Specify examples of while and for loop

Explain Relational operators in Python with suitable examples.

What is recursion? Write down program to find factorial of a number with recursive function.

Briefly explain file handling in Python with open(), close(), write() and readLines() methods with suitable example.

How to implement constructor overloading in Python? Explain using example.

How a ‘class’ is defined in Python? Explain a class variable and constructor. How data hiding in applied in Python?

What do you mean by exception handling? Explain how exception handling is done in Python in detail.

Explain below function of pylab library with suitable examples. 1.figure(), 2. plot(), 3.savefig(), 4.title(), 5.xlabel(), 6.ylabel(), 7. legend()

Explain lambda function in python with its use in filter() in-built function.

Discuss various operations, sorting and indexing on the Data Frame.

Explain following methods of pyplot with example. 1. hist() 2. pie() 3. bar()

What is database adapter? Write a Python program to perform insert update and delete operations with the given table: (department(DNO, DNAME)).

1. Explain Modules and its uses in Python with example. 2. How the class Inheritance is done in python? Explain with example.

Differentiate between fetchone() and fetchall() methods with examples.

What is Regular Expression? Explain Special Character and Quantifiers in Regular Expressions in Python.