#from threading import Lock
from multiprocessing import Lock

# Set a lock and make sure it's properly released
def good_way(lock):
    print('called good_way')
    with lock:
        raise Exception('good_way raised an exception')

# Set a lock and release it in the end if no exception 
def bad_way(lock):
    print('called bad_way')
    lock.acquire()
    raise Exception('bad_way raised an exception')
    lock.release()


if __name__=='__main__':
    lock = Lock()  # Lock is a context
    funs = [good_way, bad_way]
    for fun in funs:
        print(u'\u2500'*80)  # horizontal line
        try:
            fun(lock)
        except Exception as exc:
            print('Exception: ',exc)
            print('Trying to acquire and release the lock again')
            lock.acquire()
            lock.release()
        
        print('Got here')