what is the importance of of the line after break [some_random_character = rand(0, 120)]?

[HELLO-NIKHIL]

from random import randrange as rand
from time import sleep

A very beautiful function which will keep printing a string with a random character, until the expected character

is drawn

def print_string(current_string, expected_character):
some_random_character = rand(0, 120)
while True:
print("\r" +current_string + chr(some_random_character), end="")
sleep(0.001) # Comment this line to see the result instantly
if chr(some_random_character) == expected_character:
break
some_random_character = rand(0, 120)

my_string = "Hello World"
current_str = ""

Try to get the matching character for every character in the string. Good Luck!

for letter in my_string:
print_string(current_str, letter)
current_str += letter

[ChaudharyNishant]

Hi Nikhil

The statement some_random_character = rand(0, 127) generates a random number ranging from 0 to 127. This is called inside a loop so that in every iteration, a new number is generated. The range of 0 to 127 is taken because of the ASCII characters range. Every number from 0 to 127 represents a character (like 65 represents A, 32 represents space). Notice how chr(some_random_character) is used to convert a number to a character.

In other words, in each iteration, a random number is generated, that number is used to get the character which we will try to match with the expected character.

I have updated the method to make it more readable and standardised.

def print_string(current_string, expected_character):
    while True:
        some_random_character = rand(0, 127)
        print("\r" + current_string + chr(some_random_character), end="")
        sleep(0.1)  # Comment this line to see the result instantly
        if chr(some_random_character) == expected_character:
            break

[HELLO-NIKHIL]

i want to know only one thing:
why line 14 is important?

as you have already written the statement in line 8 so, why we have to write the statement after the break(line 14)

[ChaudharyNishant]

I was trying to use a do-while loop here. So, I initialized some_random_character once before the body of the while loop begins, and then, update it to a new random number in each iteration of the loop.

In the function print_string(), I am trying to generate a new random character infinite number of times until I get the expected character. For that, in every loop iteration, I would require a new character to match with expected_character. So, statement 14 helps me to achieve that. It helps me to generate a new random character in each iteration of the while loop. Notice that statement 8 is outside the loop, while statement 14 is inside the loop. Statement 8 can be assumed as initialization, and statement 14 as an update command.

Also, as mentioned above, I have updated the function to make it easy and more readable.

[HELLO-NIKHIL]

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