PyCharm not Running Countdown code as Python runs it in its own shell.

Here's my code:

import time
clear = "\n" * 100000
count = 30
for seconds in range(count):
    print(count,end=", ")
    time.sleep(1)
    count -= 1
print(clear)

When I run it in PyCharm, it definetly sleeps for 10, but then it prints all the numbers at once, and prints clear.

When I run it in IDLE/Python on its own, it counts down, and then clears.

Anyone know why?

Cheers,

Daf :)