futures in python for list.pop()

listpopfutures

import concurrent.futures

ml = [i for i in range(0,100)]
lr = []

def nothing():
pass

print("Beginning: ", len(ml))

with concurrent.futures.ThreadPoolExecutor(max_workers=5) as executor:
future_quadrat = { executor.submit(ml.pop): i for i in range(len(ml))}
for future in concurrent.futures.as_completed(future_quadrat):
q = future_quadrat[future]
lr.append(q)
print(q, future.result())

print("End: ml: ", len(ml), "lr: ", len(lr))