python 3.x - python3 concurrent.futures how to stop a threadPool -

hope there way i'm looking :

i have python3 concurrent.futures threadpoolexecutor object. multi threading used send lot of http requests concurrently.

i able stop entire pool of threads (having threads stop working) when keyboardinterrupt exception caught. basically, program can summed following piece of code :

import time,concurrent.futures  def waitprint() :     time.sleep(1)     print("working ..")     return true  future_results = [] executor = concurrent.futures.threadpoolexecutor(max_workers=4) in range(0,100) :     future_results.append(executor.submit(waitprint))  try :     future in concurrent.futures.as_completed(future_results) :         print(future.result()) except keyboardinterrupt :     print("stopped user")     executor.shutdown(wait=false)  print("finished") 

i thought executor.shutdown function have stopped pool , associated threads it's not case, when hit ctrl+c, hundred threads still created writing down "working ..." in terminal...

is there way me stop execution of threads before launched ?

thanks help, more info program : github.com/almandin/fuxploider