Live code edits when running script (or web server) in PyCharm

Can I configure PyCharm to pick up and re-compile code changes while I'm running a script in the IDE?

For example, let's say I have two files, main.py and foo.py. In main.py I simply have a while loop that calls a function in foo.

import foo
import time

while True:
    foo.foo()
    time.sleep(1)

And the function in foo.py is simple.

def foo():
    print('hello')

When I run main.py in PyCharm, as expected "hello" is printed over and over again, once per second. While the script is running, I want to edit foo.py and change the printed message to "goodbye". Upon making this change I want PyCharm to automatically detect and process this change, so that the console starts showing "goodbye" instead of "hello".

Is this possible, without stopping and restarting the script?