Python: HTTP文件下载压力测试工具

import urllib.request
import os
import threading
import datetime
import time

class urlDownloadThread(threading.Thread):
    def __init__(self, threadName, url, targetFolder, targetFileName):
        threading.Thread.__init__(self)
        self.threadName = threadName
        self.url = url
        self.targetFolder = targetFolder
        self.targetFileName = targetFileName

    def run(self):
        print ("开始线程:",self.name);
        # 获得锁，成功获得锁定后返回 True
        # 可选的timeout参数不填时将一直阻塞直到获得锁定
        # 否则超时后将返回 False
        # threadLock.acquire()
        printLog(self.threadName, self.url)
        startTime = datetime.datetime.now()

        f = urllib.request.urlopen(self.url)
        data = f.read()
        
        with open(os.path.join(self.targetFolder, self.targetFolder+self.targetFileName),"wb") as f: f.write(data)

        finishTime = datetime.datetime.now()
        spendTime = finishTime-startTime
        printLog(self.threadName, spendTime)
        # 释放锁
        # threadLock.release()

    def __del__(self):
        print (self.name, "线程结束！")

def printLog(title, strLog):
    print ("[%s][%s]  %s" % (time.ctime(time.time()), title, strLog))


#url = 'https://firebasestorage.googleapis.com/v0/b/xac-download-site.appspot.com/o/applications%2Fcom.xacusa.xacpaymentbridge%2F1.0.20200331%2Fs_RP10V0331payment.apk?alt=media&token=dbc9f07f-810a-4a7c-a632-3ea6dd93449f'
#targetFolder = 'E:\\Download_Test\\'
#targetFileName = 'xacpaymentbridge'
#targetAttrName = '.apk'

url = 'https://firebasestorage.googleapis.com/v0/b/pzbp-tms-test-site.appspot.com/o/sppls%2Fsppl_ki853dbt3p01%2F1127_pzbp_os.zip?alt=media&token=214eefa5-57b3-47e1-a137-1cb790df3a3e'
targetFolder = 'E:\\Download_Test\\'
targetFileName = '2F1127_pzbp_os'
targetAttrName = '.zip'

counter = 2
threadLock = threading.Lock()
threads = []


while counter:
        #time.sleep(0.1)

        # 创建新线程
        singleThread = urlDownloadThread("Thread-"+str(counter),
                          url,
                          targetFolder,
                          targetFileName + str(counter) + targetAttrName)
        
        # 开启新线程
        singleThread.start()
        
        # 添加线程到线程列表
        threads.append(singleThread)

        counter -= 1


# 等待所有线程完成
for t in threads:
    t.join()

#TODO: 计算并统计相关测试数据
print ("主进程结束！")