Multithread

import threading
from threading import Thread
import time

class olahData:
    def __init__(self, rentang):
        self.rentang = rentang
    def readData(self):
        print('[1] Read data ke : {}'.format(self.rentang))
        time.sleep(5)
    def sortData(self):
        print('[2] Sort Data ke : {}'.format(self.rentang))
        time.sleep(4)
    def exportData(self):
        print('[3] Export data ke : {}'.format(self.rentang))
        time.sleep(2)
    def run(self):
        self.readData()
        self.sortData()
        self.exportData()

if __name__ == '__main__':
    start = time.perf_counter()
    rentangs = [
        '1-100000',
        '100001-200000',
        '200001-300000',
        '300001-400000',
        '400001-500000',
        '500001-600000',
        '600001-700000',
        '700001-800000',
        '800001-900000',
        '900001-1000000',
         ]
    thread_list=[]
    for rentang in rentangs :
        t = Thread(target=olahData(rentang).run)
        t.start()
        time.sleep(0.1)
        thread_list.append(t)
    for thread in thread_list :
        thread.join()
    finish = time.perf_counter()
    print('waktu total :', finish-start)