python setup.py install 

Add a timeout function to a function or statement and raise a exception if time limit runs out , it support loop nesting, if use signal timer, outside timer will fired after the inside signal timer finish the work(raise exception or normal finish).

Support signal timer and thread timer, signal timer can only work on main thread, if not on main thread use thread timer, thread timer may cost longer time than time out seconds settled if the timer's sub thread(user's function) is busy in a system call (time.sleep(), socket.accept()...), exception will fired after system call done.

support nested loop

from timeout_timer import timeout, TimeoutInterrupt try: with timeout(2, timer="signal") as f: f(time.sleep, 0.5) with timeout(1, timer="signal") as f2: f2(time.sleep, 2) except TimeoutInterrupt: print("timeout triggered") 

or use signal timer can simplify

try: with timeout(2) : time.sleep(3) except TimeoutInterrupt: print("timeout triggered") 

or use as decorator

@timeout(2): def f(): time.sleep(3) time.sleep(2) 

Code released under the MIT license