lsof test

test.py

# Run
# - python test.py
# - lsof test.log

import time
import os

FILE_NAME = "test.log"

def main():
    if os.path.exists(FILE_NAME):
        os.remove(FILE_NAME)

    f = open(FILE_NAME, "a")
    counter = 0
    while counter < 100:
        print(counter)
        f.write(f"{counter}\n")
        time.sleep(5)
        counter += 1
        if counter % 5 == 0:
            print('flushed')
            f.flush()
    f.close()


if __name__ == "__main__":
    main()