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I want to randomly capitalize or lowercase each letter in a string. I'm new to working with strings in python, but I think because strings are immutable that I can't do the following:

i =0             for c in sentence:    case = random.randint(0,1)    print("case = ", case)    if case == 0:        print("here0")        sentence[i] = sentence[i].lower()    else:        print("here1")        sentence[i] = sentence[i].upper()    i += 1print ("new sentence = ", sentence)

And get the error: TypeError: 'str' object does not support item assignment

But then how else could I do this?

Hi: I made a naive CPP program that revert case of text in windows clipboard, I edited the registry to add the shortcut on right click as

for uppercase:

HK_CLASSES_ROOT > directory > background > shell > UPPERCASE > command > upperlower.exe -u

for lowercase:

HK_CLASSES_ROOT > directory > background > shell > lowercase > command > upperlower.exe -l

The program works, but the issue is that each time I use it windows prompt briefly (flashes) a 'commend window'

Now: How can I prevent windows from flashing that command window?

I have declared an associative array in php and assigned it key values that have a mixture of lower and uppercase letters. I need the key values in the array to be uppercase first and string the rest of the way and it needs to be in a foreach loop. New to programming so please be nice.

$city=array('Peter'=>'LEEDS',            'Kat'=>'bradford',            'Laura'=>'wakeFIeld');print_r($city);echo '<br />';foreach($city as $name => $town) {   $town = ucfirst($town);   $town = strtolower($town);   print_r($city);      }

#include<stdio.h>int main() {    char text[1000];   int ch;   int index = 0;   while ((ch = getchar()) != EOF) {      text[index] = ch;      index++;   }   text[index] = '\0';   int i =0;   int num_Count=0;    int lower_Count=0;    int upper_Count =0;   while(i < index) {    if((text[i]>='0') && (text[i]<='9')){        num_Count ++;        i++;    }    else if((text[i]>='A') && (text[i]<='Z')){        upper_Count++;        i++;    }    else if((text[i]>='a') && (text[i] <='z')){        lower_Count++;        i++;    }    else        i++;}printf("%d %d %d", num_Count, lower_Count, upper_Count);return 0;}

It is a program that outputs the number of lower case, upper case, and number when the sentence is inputted.For example,

HiName100 

Would output 3 4 2

I keep seeing a runtime error.The (while) part seems to be wrong.. I do not know what's wrong.

Is there a way to convert a string from uppercase, or even part uppercase to lowercase?

E.g. Kilometers --> kilometers.