Assignment

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1️⃣ sys, os, shutil, and subprocess (6 Assignments)

Assignment 1: Get Python Version Using sys

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

import sys
print("Python version:", sys.version)

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Assignment 2: Get and Change the Current Working Directory Using os

🔹 Task: Retrieve the current working directory and change it to /tmp. 🔹 Example Snippet:

import os
print("Current Directory:", os.getcwd())
os.chdir("/tmp")
print("Changed Directory:", os.getcwd())

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Assignment 3: List Files and Directories Using os

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

import os
print("Files and Directories:", os.listdir("."))

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Assignment 4: Copy, Move, and Delete a File Using shutil

🔹 Task: Create a file, copy it, move it, and then delete it. 🔹 Example Snippet:

import shutil

shutil.copy("source.txt", "copy.txt")  # Copy file
shutil.move("copy.txt", "moved.txt")  # Move file
shutil.rmtree("some_folder")  # Remove a folder
print("File operations complete!")

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Assignment 5: Run a Shell Command Using subprocess

🔹 Task: Run the ls or dir command using subprocess. 🔹 Example Snippet:

import subprocess

result = subprocess.run(["ls"], capture_output=True, text=True)
print(result.stdout)

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Assignment 6: Open a File Using subprocess

🔹 Task: Open notepad (Windows) or gedit (Linux/Mac). 🔹 Example Snippet:

import subprocess

subprocess.run(["notepad.exe"])  # Windows
# subprocess.run(["gedit"])  # Linux/Mac

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2️⃣ Multithreading and Multiprocessing (6 Assignments)

Assignment 7: Create and Run a Thread

🔹 Task: Run a function in a separate thread. 🔹 Example Snippet:

import threading

def print_hello():
    print("Hello from Thread!")

thread = threading.Thread(target=print_hello)
thread.start()
thread.join()

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Assignment 8: Create Multiple Threads

🔹 Task: Run multiple threads printing numbers from 1 to 5. 🔹 Example Snippet:

import threading

def print_number(n):
    print(f"Thread {n}: {n}")

threads = [threading.Thread(target=print_number, args=(i,)) for i in range(1, 6)]

for thread in threads:
    thread.start()
for thread in threads:
    thread.join()

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Assignment 9: Use ThreadPoolExecutor for Parallel Execution

🔹 Task: Execute multiple tasks using ThreadPoolExecutor. 🔹 Example Snippet:

from concurrent.futures import ThreadPoolExecutor

def square(n):
    return n * n

with ThreadPoolExecutor(max_workers=3) as executor:
    results = executor.map(square, [1, 2, 3, 4, 5])
    print(list(results))

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Assignment 10: Create a Multiprocessing Example

🔹 Task: Run a function in a separate process. 🔹 Example Snippet:

import multiprocessing

def print_message():
    print("Hello from Process!")

process = multiprocessing.Process(target=print_message)
process.start()
process.join()

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Assignment 11: Use ProcessPoolExecutor for Multiprocessing

🔹 Task: Run multiple processes using ProcessPoolExecutor. 🔹 Example Snippet:

from concurrent.futures import ProcessPoolExecutor

def cube(n):
    return n * n * n

with ProcessPoolExecutor(max_workers=3) as executor:
    results = executor.map(cube, [1, 2, 3, 4, 5])
    print(list(results))

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Assignment 12: Use a Queue in Multiprocessing

🔹 Task: Share data between processes using a queue. 🔹 Example Snippet:

import multiprocessing

def worker(q):
    q.put("Hello from Worker")

queue = multiprocessing.Queue()
process = multiprocessing.Process(target=worker, args=(queue,))
process.start()
process.join()
print(queue.get())

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3️⃣ Logging & Debugging with logging (4 Assignments)

Assignment 13: Basic Logging in Python

🔹 Task: Log a simple message. 🔹 Example Snippet:

import logging

logging.basicConfig(level=logging.INFO)
logging.info("This is an INFO message")

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Assignment 14: Logging Messages to a File

🔹 Task: Log messages to a file instead of the console. 🔹 Example Snippet:

import logging

logging.basicConfig(filename="app.log", level=logging.DEBUG)
logging.debug("This message is logged to a file")

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Assignment 15: Use Different Logging Levels

🔹 Task: Demonstrate DEBUG, INFO, WARNING, ERROR, and CRITICAL levels. 🔹 Example Snippet:

import logging

logging.basicConfig(level=logging.DEBUG)
logging.debug("Debugging message")
logging.info("Info message")
logging.warning("Warning message")
logging.error("Error message")
logging.critical("Critical message")

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Assignment 16: Custom Logging Format

🔹 Task: Change the log message format. 🔹 Example Snippet:

import logging

logging.basicConfig(format="%(asctime)s - %(levelname)s - %(message)s", level=logging.INFO)
logging.info("This is an info message")

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4️⃣ Pylint for Static Code Analysis (4 Assignments)

Assignment 17: Install Pylint

🔹 Task: Install pylint for code analysis. 🔹 Example Command (Terminal):

pip install pylint

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Assignment 18: Check a Python File with Pylint

🔹 Task: Run pylint on a sample Python file. 🔹 Example Command (Terminal):

pylint my_script.py

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Assignment 19: Ignore Specific Warnings in Pylint

🔹 Task: Disable a specific warning in pylint. 🔹 Example Command (Terminal):

pylint --disable=W0611 my_script.py

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Assignment 20: Use a Pylint Configuration File

🔹 Task: Create a .pylintrc file to customize linting rules. 🔹 Example Command (Terminal):

pylint --generate-rcfile > .pylintrc

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