concurrent pathos password search

concurrent_pathos_password_search.py

#!/usr/bin/env python3
"""
concurrent distribution
"""
#import pathos # https://pypi.org/project/pathos/
from pathos.multiprocessing import ProcessingPool
import itertools
import msoffcrypto # https://pypi.org/project/msoffcrypto-tool/
import string
import time
#>>> len(string.ascii_letters + string.digits + string.punctuation)
#94

# 94^2 =       8836
# 94^3 =     830584
# 94^4 =   78074896
# 94^5 = 7339040224

with open("encrypted.xlsx", "rb") as file_handle:
    file = msoffcrypto.OfficeFile(file_handle)


start_time = time.time()

def count_list(my_list:list) -> int:
    """
    a function to apply to the list
    """
    for attempt in my_list:
        try:
            file.load_key(password=attempt)
            print("success with " + attempt)
            exit()
        except:
            pass
    return

chars = string.ascii_letters + string.digits + string.punctuation
this_thousand = []
to_distribute = []
loop_index=0
chunk_size_per_process = 10000
number_of_processes = 2

pool = ProcessingPool(number_of_processes)

for item in itertools.product(chars,repeat=3):
    loop_index+=1
    this_thousand.append(''.join(item))
    if len(this_thousand)==chunk_size_per_process:
        print(loop_index,len(this_thousand),str(round(time.time()-start_time,2)))
        to_distribute.append(this_thousand)
        if len(to_distribute)==number_of_processes:
            res = pool.map(count_list, to_distribute) # https://stackoverflow.com/a/65174828/1164295
            print("res =",res)
            del to_distribute
            to_distribute = []
        del this_thousand
        this_thousand=[]

print(str(round(time.time()-start_time,2)))

Dockerfile

FROM centos:7

RUN yum install -y \
  python3-devel 

RUN pip3 install setuptools_rust && \
    pip3 install cryptography==3.2 && \
    pip3 install msoffcrypto-tool

RUN pip3 install pathos

Makefile

docker: docker_build docker_run
docker_build:
	docker build -t passd .

docker_run:
	docker run -it --rm -v `pwd`:/scratch passd /bin/bash