Python Utility Functions: A-Z Implementation

The following code block contains multiple functions implemented using Python's built-in libraries, covering the usage of Python's built-in libraries from A to Z.

Technology Stack : random, os, string, datetime, math, json

Code Type : Code collection

Code Difficulty : Advanced

                
                    
import random
import os
import string
import datetime
import math
import json

def generate_random_string(length):
    if not isinstance(length, int) or length <= 0:
        raise ValueError("Length must be a positive integer")

    characters = string.ascii_letters + string.digits
    return ''.join(random.choice(characters) for _ in range(length))

def get_current_time():
    return datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")

def calculate_circle_area(radius):
    if radius <= 0:
        raise ValueError("Radius must be a positive number")

    return math.pi * (radius ** 2)

def save_data_to_file(data, file_name):
    with open(file_name, 'w') as file:
        json.dump(data, file)

def read_data_from_file(file_name):
    with open(file_name, 'r') as file:
        return json.load(file)

def list_files_in_directory(directory):
    return os.listdir(directory)

def sort_list_by_length(lst):
    return sorted(lst, key=len)

def find_prime_numbers(n):
    if n <= 1:
        return []
    primes = []
    for possible_prime in range(2, n + 1):
        is_prime = True
        for num in range(2, int(math.sqrt(possible_prime)) + 1):
            if possible_prime % num == 0:
                is_prime = False
                break
        if is_prime:
            primes.append(possible_prime)
    return primes

def create_directory(directory_name):
    if not os.path.exists(directory_name):
        os.makedirs(directory_name)

def remove_directory(directory_name):
    if os.path.exists(directory_name):
        os.rmdir(directory_name)