Test

import time

with open("usrs.txt", "r") as user:
    for linenr, line in enumerate(user):
        if linenr > 9:
            break
        elif linenr >= 0:
            print(line)

def send_msg(user):
    print(f"done{count} messged {user}")
    time.sleep(3)

count = 0

try:
    for name in user:
        send_msg(name)
        count += 1
except:
    print('Failed!')