How to make animated text in Python?

Question

Python

I know how to make animated, but how to make it stop animating after the last line ('Test',)?

Code:
loading = [
'T',
'Te',
'Tes',
'Test',
]

while True:
for value in loading:
os.system('cls')
print(value)
time.sleep(0.1)

Answer 1

import os
import time
loading = 'Тест'

value = ''

for symbol in loading:
    os.system('cls')
    value = ''.join([value, symbol])
    print(value)
    time.sleep(0.1)

Option:

import os
import time
loading = 'Тест'

for i,_ in enumerate(loading):
    os.system('cls')
    print(loading[:i+1])
    time.sleep(0.1)