thread termination and suspension threads do not have any methods for forceful termination or suspension this omission is by design and due to the intrinsic complexity of writing threaded programs for exampleif thread has acquired lockforcefully terminating or suspending it before it is able to release the lock may cause the entire application to deadlock moreoverit is generally not possible to simply "release all lockson termination either because complicated thread synchronization often involves locking and unlocking operations that must be carried out in very precise sequence to work if you want to support termination or suspensionyou need to build these features yourself typicallyit' done by making thread run in loop that periodically checks its status to see if it should terminate for exampleclass stoppablethread(threading thread)def _init_ (self)threading thread _init_ (self _terminate false self _suspend_lock threading lock(def terminate(self)self _terminate true def suspend(self)self _suspend_lock acquire(def resume(self)self _suspend_lock release(def run(self)while trueif self _terminatebreak self _suspend_lock acquire(self _suspend_lock release(statements keep in mind that to make this approach work reliabilitythe thread should take great care not to perform any kind of blocking / operation for exampleif the thread blocks waiting for data to arriveit won' terminate until it wakes up from that operation because of thisyou would probably want to make the implementation use timeoutsnon-blocking /oand other advanced features to make sure that that the termination check executes every so often utility functions the following utility functions are availableactive_count(returns the number of currently active thread objects current_thread(returns the thread object corresponding to the caller' thread of control enumerate(returns list of all currently active thread objects local(returns local object that allows for the storage of thread-local data this object is guaranteed to be unique in each thread lib fl ff