Assignment

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1️⃣ Lambda Functions, map(), filter(), reduce() (6 Assignments)

Assignment 1: Using a Simple Lambda Function

🔹 Task: Create a lambda function to find the square of a number. 🔹 Example Snippet:

square = lambda x: x ** 2
print(square(5))  # Output: 25

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Assignment 2: Using Lambda with map()

🔹 Task: Convert a list of integers to their squares using map(). 🔹 Example Snippet:

numbers = [1, 2, 3, 4, 5]
squared = list(map(lambda x: x ** 2, numbers))
print(squared)  # Output: [1, 4, 9, 16, 25]

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Assignment 3: Using Lambda with filter()

🔹 Task: Filter even numbers from a list. 🔹 Example Snippet:

numbers = [1, 2, 3, 4, 5, 6]
evens = list(filter(lambda x: x % 2 == 0, numbers))
print(evens)  # Output: [2, 4, 6]

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Assignment 4: Using Lambda with reduce()

🔹 Task: Find the product of all elements in a list using reduce(). 🔹 Example Snippet:

from functools import reduce
numbers = [1, 2, 3, 4]
product = reduce(lambda x, y: x * y, numbers)
print(product)  # Output: 24

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Assignment 5: Using map() with Multiple Lists

🔹 Task: Add corresponding elements of two lists using map(). 🔹 Example Snippet:

list1 = [1, 2, 3]
list2 = [4, 5, 6]
sum_list = list(map(lambda x, y: x + y, list1, list2))
print(sum_list)  # Output: [5, 7, 9]

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Assignment 6: Using filter() with Strings

🔹 Task: Filter out words with more than 3 letters. 🔹 Example Snippet:

words = ["hi", "apple", "ok", "yes", "python"]
filtered_words = list(filter(lambda x: len(x) > 3, words))
print(filtered_words)  # Output: ['apple', 'python']

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2️⃣ Decorators & Generators (6 Assignments)

Assignment 7: Creating a Simple Decorator

🔹 Task: Write a decorator that prints Before function call and After function call. 🔹 Example Snippet:

def decorator(func):
    def wrapper():
        print("Before function call")
        func()
        print("After function call")
    return wrapper

@decorator
def say_hello():
    print("Hello!")

say_hello()

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Assignment 8: Using a Decorator with Arguments

🔹 Task: Modify a function to print a custom message before execution. 🔹 Example Snippet:

def repeat(n):
    def decorator(func):
        def wrapper():
            for _ in range(n):
                func()
        return wrapper
    return decorator

@repeat(3)
def greet():
    print("Hello!")

greet()

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Assignment 9: Using Multiple Decorators

🔹 Task: Apply two decorators to the same function. 🔹 Example Snippet:

def uppercase(func):
    def wrapper():
        return func().upper()
    return wrapper

def add_exclamation(func):
    def wrapper():
        return func() + "!!!"
    return wrapper

@add_exclamation
@uppercase
def greet():
    return "hello"

print(greet())  # Output: HELLO!!!

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Assignment 10: Creating a Simple Generator

🔹 Task: Write a generator that yields numbers from 1 to 5. 🔹 Example Snippet:

def number_generator():
    for i in range(1, 6):
        yield i

gen = number_generator()
print(list(gen))  # Output: [1, 2, 3, 4, 5]

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Assignment 11: Using Generators for Fibonacci Sequence

🔹 Task: Generate the first 10 Fibonacci numbers. 🔹 Example Snippet:

def fibonacci(n):
    a, b = 0, 1
    for _ in range(n):
        yield a
        a, b = b, a + b

print(list(fibonacci(10)))

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Assignment 12: Generator for Infinite Number Sequence

🔹 Task: Create a generator that produces numbers infinitely. 🔹 Example Snippet:

def infinite_numbers():
    num = 1
    while True:
        yield num
        num += 1

gen = infinite_numbers()
for _ in range(5):
    print(next(gen))

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3️⃣ Working with sys Module (4 Assignments)

Assignment 13: Getting Python Version

🔹 Task: Print the Python version using sys. 🔹 Example Snippet:

import sys
print(sys.version)

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Assignment 14: Command Line Arguments

🔹 Task: Print all command-line arguments passed to the script. 🔹 Example Snippet:

import sys
print("Arguments:", sys.argv)

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Assignment 15: Exiting a Script with sys.exit()

🔹 Task: Exit the script after printing a message. 🔹 Example Snippet:

import sys
print("Exiting script")
sys.exit()
print("This will not be printed")

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Assignment 16: Finding Max Recursion Depth

🔹 Task: Get the maximum recursion depth using sys. 🔹 Example Snippet:

import sys
print(sys.getrecursionlimit())

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4️⃣ Understanding os and shutil Modules (4 Assignments)

Assignment 17: Getting the Current Working Directory

🔹 Task: Print the current working directory using os. 🔹 Example Snippet:

import os
print(os.getcwd())

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Assignment 18: Listing Files in a Directory

🔹 Task: Print all files and folders in the current directory. 🔹 Example Snippet:

import os
print(os.listdir('.'))

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Assignment 19: Creating & Removing a Directory

🔹 Task: Create and remove a directory using os. 🔹 Example Snippet:

import os
os.mkdir("test_dir")
print("Directory created")
os.rmdir("test_dir")
print("Directory removed")

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Assignment 20: Copying a File with shutil

🔹 Task: Copy a file using shutil. 🔹 Example Snippet:

import shutil
shutil.copy("source.txt", "destination.txt")
print("File copied successfully")

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