The following code does not work as expected using Python 3.5
import time
for letter in "Hello World!!":
print(letter, end="")
time.sleep(.5)
Instead of printing each letter with a short time interval, it just pauses, and at the end I print all the text. I would like you to help me
The problem is that end="" caches writing from memory and only writes content at the end of all writes. This can be bypassed by starting python with python -u or setting the environment variable PYTHONUNBUFFERED .
A simpler alternative is to force output to the console using the flush parameter in print:
import time
for letter in "Hello World!!":
print(letter, end="", flush=True) #flush agora forçado aqui
time.sleep(.5)
The solution of flush=True only works in version 3.3 up