AKTU Python Programming Question Paper 2026

This page contains the AKTU B.Tech Python Programming Question Paper 2025–26 for BCC302. The complete question paper is given below along with student-oriented answers and solutions.

The questions are arranged according to the original Section A, Section B and Section C structure. The original question numbering, sub-parts and marks distribution are maintained.

AKTU BCC302 Python Programming Question Paper 2025–26

Question Paper Index

The following is the index of questions included in the AKTU BCC302 Python Programming Question Paper 2025–26.

Section A

Section B

Section C

AKTU Python Programming Question Paper 2026 – Solutions

The detailed answers to the above questions are given below. Answers are written in simple English and are arranged according to the marks assigned in the question paper.

Section A – Answers

Q1(a) What are Python variables? Give an example of declaring numeric data types.

A variable in Python is a name used to store a value in memory. Python variables do not require explicit declaration of their data type. The type is determined automatically from the value assigned to the variable.

Example:

age = 20
marks = 85.5

print(age)
print(marks)

Here, age is an integer variable and marks is a floating point variable.

Q1(b) Differentiate between for loop using range and while loop in Python.

Q1(c) Explain string slicing in Python with an example.

String slicing is used to obtain a part of a string. The general syntax is:

string[start:stop:step]

The start index is included and the stop index is excluded.

Example:

name = "Python"

print(name[0:3])

Output:

 Pyt

Q1(d) What is a tuple in Python? How is it different from a list?

A tuple is an ordered collection of elements in Python. A tuple is immutable, which means its elements cannot be changed after creation.

Example:

t = (10, 20, 30)

Q1(e) Define dictionary in Python and give an example of its manipulation.

A dictionary is a collection of data stored in the form of key-value pairs. It is written using curly brackets {}.

Example:

student = {
    "name": "Rahul",
    "marks": 85
}

student["marks"] = 90

print(student)

Here, the value of the marks key is changed from 85 to 90.

Q1(f) What are read() and readline() functions in file handling?

The read() function is used to read the contents of a file. It can read the complete file or a specified number of characters.

The readline() function is used to read one line from a file at a time.

Example:

file = open("data.txt", "r")

data = file.read()
print(data)

file.close()

For reading one line, readline() can be used instead.

Q1(g) Explain encapsulation in Python OOP.

Encapsulation is an OOP concept in which data and the methods that operate on that data are combined inside a class. It also helps to restrict direct access to some data members.

Example:

class Student:

    def __init__(self):
        self.__marks = 90

    def show_marks(self):
        print(self.__marks)

s = Student()
s.show_marks()

Here, __marks is treated as a private data member and is accessed through the class method.

Section B – Answers

Q2(a) Explain Python basic operators and data types. Write a program to check if a number is even or odd using if-else.

Python provides different types of operators to perform operations on data. The basic operators are:

Python Data Types

Python provides several built-in data types. Some commonly used data types are:

• int – stores integer values.
• float – stores decimal values.
• complex – stores complex numbers.
• str – stores text or strings.
• list – stores an ordered and mutable collection.
• tuple – stores an ordered and immutable collection.
• dict – stores data in key-value pairs.
• set – stores an unordered collection of unique values.
• bool – stores True or False.

Program to Check Even or Odd Number

num = int(input("Enter a number: "))

if num % 2 == 0:
    print("The number is even")
else:
    print("The number is odd")

Example Output:

Enter a number: 12
The number is even

Q2(b) Describe loop manipulation statements: pass, continue, break. Write a program to print prime numbers between 1 to 50 using for loop.

Loop manipulation statements are used to control the execution of a loop. The three important loop manipulation statements in Python are pass, continue and break.

1. pass

The pass statement does nothing. It is used as a placeholder when a statement is syntactically required but no action is needed.

for i in range(5):
    pass

2. continue

The continue statement skips the remaining statements of the current iteration and moves to the next iteration.

for i in range(5):
    if i == 2:
        continue
    print(i)

3. break

The break statement terminates the loop immediately.

for i in range(10):
    if i == 5:
        break
    print(i)

Program to Print Prime Numbers from 1 to 50

for num in range(2, 51):

    prime = True

    for i in range(2, num):
        if num % i == 0:
            prime = False
            break

    if prime:
        print(num)

Output:

2
3
5
7
11
13
17
19
23
29
31
37
41
43
47

Q2(c) Discuss string operations and built-in functions. Write a program to count vowels in a string.

A string is a sequence of characters enclosed within single, double or triple quotation marks.

Common String Operations

• Concatenation: Joining two strings using +.
• Repetition: Repeating a string using *.
• Slicing: Extracting a part of a string.
• Indexing: Accessing an individual character.
• Membership: Checking whether a character or substring exists using in or not in.

Common Built-in String Functions and Methods

Program to Count Vowels in a String

text = input("Enter a string: ")

count = 0

for ch in text:
    if ch.lower() in "aeiou":
        count += 1

print("Number of vowels =", count)

Example Output:

Enter a string: Python Programming
Number of vowels = 4

Q2(d) Explain list and dictionary built-in functions. Write a program to merge two dictionaries.

List Built-in Functions and Methods

Dictionary Built-in Functions and Methods

Program to Merge Two Dictionaries

dict1 = {
    "name": "Rahul",
    "age": 20
}

dict2 = {
    "course": "B.Tech",
    "marks": 85
}

dict1.update(dict2)

print("Merged Dictionary:")
print(dict1)

Output:

Merged Dictionary:
{'name': 'Rahul', 'age': 20, 'course': 'B.Tech', 'marks': 85}

Q2(e) Describe file writing functions: write(), writelines(). Write a program to write student records to a file.

write() Function

The write() function is used to write a string into a file. It writes one string at a time.

Example:

file = open("data.txt", "w")

file.write("Rahul 85")

file.close()

writelines() Function

The writelines() function is used to write a sequence of strings to a file. It does not automatically add a newline character between the strings.

Example:

file = open("data.txt", "w")

lines = ["Rahul 85\n", "Amit 90\n"]

file.writelines(lines)

file.close()

Program to Write Student Records to a File

students = [
    "Rahul, 101, 85\n",
    "Amit, 102, 90\n",
    "Priya, 103, 88\n"
]

file = open("students.txt", "w")

file.writelines(students)

file.close()

print("Student records written successfully.")

Output:

Student records written successfully.

Section C – Answers

Q3(a) Explain Python blocks and conditional statements. Write a program to grade students based on marks using elif.

Python Blocks

A block in Python is a group of statements that are written together and executed as a single unit. Python uses indentation to define a block instead of braces.

For example, the statements inside an if statement form an indented block.

if marks >= 40:
    print("Pass")
    print("Student is successful")

The statements having the same indentation belong to the same block.

Conditional Statements

Conditional statements are used to execute different statements depending on a condition. Python provides the following conditional statements:

• if – executes a block when the condition is true.
• if-else – executes one block when the condition is true and another block when it is false.
• if-elif-else – checks multiple conditions.

Program to Grade Students Using elif

marks = int(input("Enter marks: "))

if marks >= 90:
    grade = "A+"
elif marks >= 80:
    grade = "A"
elif marks >= 70:
    grade = "B"
elif marks >= 60:
    grade = "C"
elif marks >= 50:
    grade = "D"
elif marks >= 40:
    grade = "E"
else:
    grade = "F"

print("Grade =", grade)

Example Output:

Enter marks: 85
Grade = A

Q3(b) Discuss for loops with strings and lists. Write a program to sum elements of a list.

for Loop with Strings

A for loop can be used to access each character of a string one by one.

name = "Python"

for ch in name:
    print(ch)

Output:

P
y
t
h
o
n

for Loop with Lists

A for loop can also be used to access each element of a list.

numbers = [10, 20, 30, 40]

for num in numbers:
    print(num)

Program to Find the Sum of Elements of a List

numbers = [10, 20, 30, 40, 50]

total = 0

for num in numbers:
    total = total + num

print("Sum =", total)

Output:

Sum = 150

Q4(a) Explain functions in Python. Write a function to calculate area of a circle.

Functions in Python

A function is a block of reusable code that performs a specific task. Functions help to reduce code repetition and make a program easier to understand and maintain.

A function is defined using the def keyword.

General syntax:

def function_name(parameters):
    statements

A function may accept parameters and may return a value using the return statement.

Program to Calculate Area of a Circle

def area_of_circle(radius):
    area = 3.14 * radius * radius
    return area

r = float(input("Enter radius: "))

area = area_of_circle(r)

print("Area of circle =", area)

Example Output:

Enter radius: 5
Area of circle = 78.5

Q4(b) Describe string manipulation methods. Write a program to replace characters in a string.

String Manipulation Methods

Python provides several built-in methods for manipulating strings. Some commonly used methods are:

Program to Replace Characters in a String

text = "I like Java"

new_text = text.replace("Java", "Python")

print("Original string:", text)
print("Modified string:", new_text)

Output:

Original string: I like Java
Modified string: I like Python

Q5(a) Explain sets and their operations. Write a program to find difference between two sets.

Sets in Python

A set is an unordered collection of unique elements in Python. A set does not allow duplicate values. Sets are written using curly brackets {}.

Example:

numbers = {10, 20, 30, 40}

Set Operations

Python provides several operations for working with sets.

Examples of Set Operations

A = {1, 2, 3, 4}
B = {3, 4, 5, 6}

print("Union:", A | B)
print("Intersection:", A & B)
print("Difference:", A - B)
print("Symmetric Difference:", A ^ B)

Program to Find Difference Between Two Sets

A = {10, 20, 30, 40, 50}
B = {30, 40, 50, 60, 70}

difference = A - B

print("Difference between A and B =", difference)

Output:

Difference between A and B = {10, 20}

Q5(b) Discuss tuple and list slicing. Write a program to reverse a tuple.

List Slicing

List slicing is used to obtain a part of a list. The general syntax is:

list[start:stop:step]

The start index is included and the stop index is excluded. The step specifies the number of positions to move.

Example:

numbers = [10, 20, 30, 40, 50]

print(numbers[1:4])

Output:

[20, 30, 40]

Tuple Slicing

Tuple slicing works in the same way as list slicing. Since tuples are immutable, slicing creates a new tuple instead of modifying the original tuple.

Example:

data = (10, 20, 30, 40, 50)

print(data[1:4])

Output:

(20, 30, 40)

Program to Reverse a Tuple

numbers = (10, 20, 30, 40, 50)

reverse_tuple = numbers[::-1]

print("Original tuple:", numbers)
print("Reversed tuple:", reverse_tuple)

Output:

Original tuple: (10, 20, 30, 40, 50)
Reversed tuple: (50, 40, 30, 20, 10)

Q6(a) Explain manipulating file pointer using seek(). Write a program to read last n lines from a file.

File Pointer

A file pointer indicates the current position from where data will be read or written in a file. Python provides the seek() function to move the file pointer to a particular position.

Syntax:

file.seek(position)

The position specifies the number of bytes from the beginning of the file.

Example of seek()

file = open("data.txt", "r")

file.seek(5)

data = file.read()

print(data)

file.close()

In this example, the file pointer is moved to position 5 before reading the remaining contents.

Program to Read Last n Lines from a File

n = int(input("Enter number of lines: "))

file = open("data.txt", "r")

lines = file.readlines()

file.close()

for line in lines[-n:]:
    print(line, end="")

Here, readlines() reads the lines of the file into a list and lines[-n:] selects the last n lines.

Q6(b) Describe regular expressions using re module. Write a program to find all digits in a string.

Regular Expressions

A regular expression is a sequence of characters used to search, match or manipulate patterns in text. Python provides the re module for working with regular expressions.

The re module provides functions such as:

Program to Find All Digits in a String

import re

text = "My roll number is 125 and my marks are 85."

digits = re.findall(r'\d', text)

print("Digits:", digits)

Output:

Digits: ['1', '2', '5', '8', '5']

Here, \d is a regular expression pattern used to match a digit from 0 to 9.

Q7(a) Explain inheritance and polymorphism. Write a program showing multiple inheritance.

Inheritance

Inheritance is an important concept of Object-Oriented Programming in which a new class acquires the properties and methods of an existing class. The existing class is called the parent class and the new class is called the child class.

Inheritance helps in code reusability and reduces duplication of code.

Polymorphism

Polymorphism means "many forms". In Python, the same method or operator can perform different operations depending on the object or data on which it is used.

Example:

print(10 + 20)

print("Hello " + "Python")

The + operator performs addition for numbers and concatenation for strings.

Multiple Inheritance

In multiple inheritance, one child class inherits properties and methods from more than one parent class.

Program to Demonstrate Multiple Inheritance

class Father:

    def father_property(self):
        print("Father's property")


class Mother:

    def mother_property(self):
        print("Mother's property")


class Child(Father, Mother):

    def child_property(self):
        print("Child's property")


obj = Child()

obj.father_property()
obj.mother_property()
obj.child_property()

Output:

Father's property
Mother's property
Child's property

Q7(b) Discuss Tkinter widgets. Write a program to create a simple window with a label using Tkinter.

Tkinter Widgets

Tkinter is the standard Python library used to create Graphical User Interface (GUI) applications.

A widget is a graphical component used in a GUI application. Tkinter provides different types of widgets.

Program to Create a Simple Window with a Label

import tkinter as tk

window = tk.Tk()

window.title("Python GUI")

window.geometry("400x200")

label = tk.Label(
    window,
    text="Welcome to Python Programming"
)

label.pack()

window.mainloop()

The Tk() function creates the main window, Label() creates a label and mainloop() keeps the GUI window running.

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