Python Utility Functions Showcase

This code combination uses multiple Python built-in libraries to demonstrate Python's capabilities, including generating random strings, removing invalid characters from strings, saving data to a file, formatting time, calculating the area of a circle, running scripts, and getting system information.

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

Code Type : Code combination

Code Difficulty : Advanced

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

def generate_random_string(length, chars=string.ascii_letters + string.digits):
    return ''.join(random.choice(chars) for _ in range(length))

def remove_invalid_characters(text, valid_chars=string.ascii_letters + string.digits + " -_"):
    return re.sub(f"[^{re.escape(valid_chars)}]", "", text)

def save_to_file(data, file_path):
    with open(file_path, 'w') as file:
        file.write(data)

def print_formatted_time(time_str):
    print(time.strftime('%Y-%m-%d %H:%M:%S', time.strptime(time_str, '%Y-%m-%d %H:%M:%S')))

def calculate_circle_area(radius):
    return math.pi * (radius ** 2)

def run_script(script_path):
    if os.path.isfile(script_path):
        with open(script_path, 'r') as script_file:
            exec(script_file.read())
    else:
        print(f"Script file {script_path} not found.")

def get_system_info():
    info = {
        'platform': sys.platform,
        'version': sys.version,
        'path': os.environ['PATH'],
        'uptime': datetime.timedelta(seconds=os.getloadavg()[0] // 1)
    }
    return info