selenium.common.exceptions.NoSuchElementException：抓取错误

Question

现在我想在交易板上搜索游戏物品。 所以我在源代码下做了一个爬虫

with（python 3.6 / Selenium / bs4 / Chromedrver）

这是我的来源

from selenium import webdriver
 from bs4 import BeautifulSoup
 import urllib
 import time
 import datetime
 import sys
 from retrying import retry

 now = time.time()
 until = 1518699000
 print(datetime.datetime.fromtimestamp(now))
 print(datetime.datetime.fromtimestamp(until))

 driver = webdriver.Chrome('C:/chromeDR/chromedriver.exe')
 driver.get('http://ro.gnjoy.com/itemDeal/dealSearch.asp')
 driver.implicitly_wait(10)
 html = driver.page_source
 soup = BeautifulSoup(html, 'html.parser')

 count = 1

 while True:


        dics = {'+7 엑소시스트 웨폰 쉐도우':40000000,'+7 액서큐서너 웨폰 쉐도우':25000000}


        for keynum in dics.keys():

            print (count)
            print (keynum)
            driver.find_element_by_name('itemFullName').send_keys(keynum)
            driver.find_element_by_name('svrID').send_keys('바포메트')

            log_but2 = '''//*[@id="itemContents"]/form/fieldset/button'''
            **driver.find_element_by_xpath(log_but2).click()** 
            driver.implicitly_wait(10)
            result = driver.page_source


            resulthtml = BeautifulSoup(result, 'html.parser')

            lists = resulthtml.find_all('span', {'class' : 'priceLv7'})

            for i in lists:

                price = int(i.text.replace(',',''))

                print (price)
                if price < dics[(keynum)] :
                    print ('success finding')
                    import mailling
                    sys.exit(1)

            if now > until :
                print ('time closing.')
                sys.exit(1)

            time.sleep(5)
            driver.find_element_by_name('itemFullName').clear()

我希望这个消息来源不断发作，直到找到或结束时间。

但有时会发生错误，请按照捕获进行操作 “driver.find_element_by_xpath（log_but2）.click（）”段落出错。

我希望完美地消除这个错误 要么 在此错误情况下自动重试

我该怎么办？有人请帮助我