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File Content: `cfimport.py`

import os
import sys
import threading
import traceback


NLOOPS = 50
NTHREADS = 30


def t1():
    try:
        from concurrent.futures import ThreadPoolExecutor
    except Exception:
        traceback.print_exc()
        os._exit(1)

def t2():
    try:
        from concurrent.futures.thread import ThreadPoolExecutor
    except Exception:
        traceback.print_exc()
        os._exit(1)

def main():
    for j in range(NLOOPS):
        threads = []
        for i in range(NTHREADS):
            threads.append(threading.Thread(target=t2 if i % 1 else t1))
        for thread in threads:
            thread.start()
        for thread in threads:
            thread.join()
        sys.modules.pop('concurrent.futures', None)
        sys.modules.pop('concurrent.futures.thread', None)

if __name__ == "__main__":
    main()

Name	Size	Permission
__pycache__	---	0755
cfimport.py	825 bytes	0644
pool_in_threads.py	459 bytes	0644

File Content: cfimport.py

File Content: `cfimport.py`