Random String Generator

This function generates a random string of specified length composed of uppercase and lowercase letters.

Technology Stack : re (regular expressions), random (random numbers), string (string operations)

Code Type : String generation

Code Difficulty : Intermediate

                
                    
import re
import random
import string
import math
import datetime

def generate_random_string(length):
    if not isinstance(length, int) or length <= 0:
        raise ValueError("Length must be a positive integer")
    letters = string.ascii_letters
    return ''.join(random.choice(letters) for i in range(length))