Python script for running a guile instance as a server, with a file as input

guileman.py

#!/usr/bin/python3

import sys
import os
import time

filename = '/home/louis/minlog/.guileman.txt'
f = open(filename, 'w')
f.write('\n')
f.close()

def do_events():
    with open(filename, 'r') as f:
        print(f.read())


while True:
    mtime = os.stat(filename).st_mtime
    do_events()
    sys.stdout.flush()
    while True:
        try:
            if mtime != os.stat(filename).st_mtime:
                break
        except FileNotFoundError:
            pass
        time.sleep(0.1)