Python Assignment Questions: Data Structures, Strings, Functions & Recursion

1. String Creation and Basic Operations

Write a program that creates different types of strings (single quotes, double quotes, triple quotes) and prints them.

Hint: Use different quote types for string creation.

2. String Indexing

Take a string as input and print the first, last, and middle characters.

Hint: Use positive and negative indexing.

3. String Slicing

Input a sentence and extract the first 5 characters, last 5 characters, and every second character.

Hint: Use slicing with different parameters.

4. String Immutability Demonstration

Show that strings are immutable by trying to change a character and then creating a new string.

Hint: Attempt to modify a string character and handle the error.

5. Uppercase and Lowercase

Take a string input and print it in both uppercase and lowercase.

Hint: Use upper() and lower() methods.

6. Find Substring

Input a main string and a substring, then find the position of the substring.

Hint: Use find() method and handle the case when substring is not found.

7. Replace Words

Take a sentence and replace all occurrences of “old” with “new”.

Hint: Use replace() method.

8. Split and Join

Input a comma-separated string, split it into a list, then join it back with spaces.

Hint: Use split() and join() methods.

9. List Creation and Access

Create a list of 5 numbers, print the entire list, first element, and last element.

Hint: Use square brackets for list creation and indexing.

10. List Modification

Create a list, add an element, remove an element, and modify an existing element.

Hint: Use append(), remove(), and indexing for modification.

11. List Slicing

Create a list of 10 numbers and demonstrate different slicing operations.

Hint: Use various slicing patterns like [2:5], [::2], [::-1].

12. Dictionary Operations

Create a dictionary with student information, add a new key-value pair, and modify an existing value.

Hint: Use dictionary literal syntax and key access.

13. Dictionary Methods

Create a dictionary and demonstrate keys(), values(), and items() methods.

Hint: Call these methods on the dictionary object.

14. Set Operations

Create two sets and demonstrate union, intersection, and difference operations.

Hint: Use |, &, and - operators or corresponding methods.

15. Function Definition

Write a function that takes two numbers and returns their sum.

Hint: Use def keyword, parameters, and return statement.

16. Function with Default Parameters

Write a function that greets a person with a default greeting message.

Hint: Use default parameter values in function definition.

17. Recursion - Factorial

Write a recursive function to calculate factorial of a number.

Hint: Base case: n == 0 or n == 1, recursive case: n * factorial(n-1).

18. Recursion - Fibonacci

Write a recursive function to find the nth Fibonacci number.

Hint: Base cases: n == 0 or n == 1, recursive case: fibonacci(n-1) + fibonacci(n-2).

19. Lambda Function

Create a lambda function that squares a number and use it with map().

Hint: Use lambda x: x**2 and map() function.

20. Filter with Lambda

Use filter() with a lambda function to get even numbers from a list.

Hint: Use lambda x: x % 2 == 0 with filter().