[已解决]TypeError: a bytes-like object is required, not 'str'求助

akun1111

请问这个错误怎么修改
#/usr/bin/python
#encoding:utf-8
import csv
import os
import  time
#app类
from typing import List, Tuple


class App(object):
    def __init__(self):
        self.content= ''
        self.startTime=0
  #启动App
    def LaunchApp(self):
        cmd='adb shell am start -W -n com.bylh.yyb.follow/com.bylh.yyb.follow.ui.activity.MainActivity'
        self.content=os.popen(cmd)
   #停止app
    def StopApp(self):
        cmd='adb shell am force-stop com.bylh.yyb.follow'
        os.popen(cmd)
    #获取启动时间


    def GetLaunchedTime(self):
        for line in self.content.readline():
            if 'ThisTime' in  line:
                self.startTime = line.split(':')[1]
                break
            return  self.startTime
#控制类
class Controller(object):

    def __init__(self,count):
        self.app=App()
        self.counter =count
        self.alldata=[('timestamp','elapsedtime')]
    #单次测试过程
    def testprocess(self):
        self.app.LaunchApp()
        elpasedtime= self.app.GetLaunchedTime
        self.app.StopApp()
        currentTime = self.getCurrentTime()
        self.alldata.append((currentTime , elpasedtime))
#多次执行测试过程
    def run(self):
        while self.counter >0:
            self.testprocess()
            self.counter =self.counter -1
    #获取当前的时间戳
    def getCurrentTime(self):
        currentTime = time.strftime("%Y -%m-%d %H:%M;%S",time.localtime())
        return currentTime


#数据的存储
    def  SaveDataToCSV(self):

        csvfile = open('starTime.csv','wb')
        writer =csv.writer(csvfile)
        writer.writerows(self.alldata)
        csvfile.close()
if __name__ == '__main__':
    controller =Controller(10)
    controller.run()
    controller.SaveDataToCSV()


报错如下
D:\test\Scripts\python.exe D:/test/launchIime/launchTime.py
Traceback (most recent call last):
  File "D:/test/launchIime/launchTime.py", line 66, in <module>
    controller.SaveDataToCSV()
  File "D:/test/launchIime/launchTime.py", line 61, in SaveDataToCSV
    writer.writerows(self.alldata)
TypeError: a bytes-like object is required, not 'str'

Process finished with exit code 1

最佳答案

月排行榜 / 总排行榜

Charles未晞

2018-4-8 15:02:32

'w'打开试试，不要'wb'....

跳转到最佳答案楼层

Charles未晞

'w'打开试试，不要'wb'....

akun1111

完美解决，谢谢哈