Python Utility Functions Overview

This code snippet includes a series of functions written using Python's built-in libraries, each serving a specific purpose such as generating random strings, checking for leap years, extracting email addresses, formatting the current time, calculating the geometric mean, reading file content, appending to a file, filtering even numbers, and getting system information.

Technology Stack : os, re, sys, time, json, math, random, string, datetime

Code Type : Code snippet

Code Difficulty : Intermediate

                
                    
import os
import re
import sys
import time
import json
import math
import random
import string
import datetime

def generate_random_string(length=10):
    letters = string.ascii_letters
    return ''.join(random.choice(letters) for i in range(length))

def is_leap_year(year):
    return year % 4 == 0 and (year % 100 != 0 or year % 400 == 0)

def extract_emails(text):
    email_pattern = r'\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,}\b'
    return re.findall(email_pattern, text)

def print_formatted_time():
    now = datetime.datetime.now()
    return now.strftime('%Y-%m-%d %H:%M:%S')

def calculate_geometric_mean(numbers):
    if not numbers:
        return None
    product = math.prod(numbers)
    return product ** (1.0 / len(numbers))

def read_file_content(file_path):
    with open(file_path, 'r') as file:
        return file.read()

def append_to_file(file_path, content):
    with open(file_path, 'a') as file:
        file.write(content + '\n')

def filter_even_numbers(numbers):
    return [num for num in numbers if num % 2 == 0]

def get_system_info():
    info = {
        'os': os.name,
        'platform': sys.platform,
        'version': sys.version,
        'max_size': sys.maxsize
    }
    return info