Python concurrent Programming: Multithreading-thread other properties and methods of objects

Other properties or methods of the thread object

Introduced:

Thread instance object Method    # isAlive (): Returns the thread is active    # getName (): Returns the thread name    # setnmae (): Sets the thread name threading module provides some methods:    # Threading.currentthread ():    returns the current thread variable    # threading.enumerate ():    Returns a list containing the running thread. Running refers to threads that do not include pre-and post-termination threads until after the thread has started and ends.    # Threading.activecount ():    Returns the number of running threads with the same result as Len (Threading.enumerate ())

　　

Verify

From threading import threadimport threadingfrom multiprocessing import processimport osimport timedef work ():    Time.sleep (3)    print (Threading.current_thread (). GetName ()) If __name__ = = ' __main__ ':    # Open thread under main process    T = Thread (target=work)    t.start ()    print (Threading.current_thread (). GetName ())    print (Threading.current_ Thread ())   # main thread    print (Threading.enumerate ())    # with two running threads in the main thread    print (Threading.active_count ())    print (' main thread/main process ')

Execution results

Mainthread<_mainthread (Mainthread, started 140037784917824) >[<_mainthread (Mainthread, started 140037784917824), <thread (Thread-1, started 140037751482112) >]2 main thread/main process Thread-1

The main thread waits for the child thread to end

Import timedef Sayhi (name):    time.sleep (2)    print ('%s say hello '% name) if __name__ = = ' __main__ ':    t = Thread (t Arget=sayhi, args= (' Mike ',))    T.start ()    t.join ()    print (' main thread ')    print (t.is_alive ())

Execution results

Mike say hello Main thread false

　　

Python concurrent Programming: Multithreading-thread other properties and methods of objects