无法点击元素 Python Selenium

Question

无法点击该元素。代码没有让我看到异常跳转到除块。在除块中，流控制后的前 2 行也将用于 c in range(sheet.ncols)： for r in range(sheet.nrows): 这里无法找到或单击 xpath。代码输出是 进程以退出代码 0 结束

from selenium import webdriver
import time

from selenium.common.exceptions import NoSuchElementException
import xlrd
driver = webdriver.Chrome(r'chromedriver.exe')
driver.maximize_window()
driver.get('url')
driver.switch_to.frame('m')
emailElem = driver.find_element_by_xpath('//*[@id="log_main"]/input')

# emailElem=browser.find_element_by_id('l')
# emailElem=browser.find_element_by_name("id")
emailElem.send_keys('sf@df.com')
# time.sleep(5)
passwordElem = driver.find_element_by_xpath('//*[@id="log_main"]/p[1]/input')
passwordElem.send_keys('#####')

passwd=passwordElem.find_element_by_xpath('//*[@id="log_main"]/p[2]/input').click()
driver.switch_to.parent_frame()
driver.switch_to.frame('topFrame')

driver.find_element_by_css_selector('.menu > ul:nth-child(1) > li:nth-child(7) > a:nth-child(1) > span:nth-child(1)').click()#Reports
driver.switch_to.parent_frame()
driver.switch_to.frame('ST_mainFrame')
driver.find_element_by_css_selector('div.menu_row:nth-child(16) > span:nth-child(3) > label:nth-child(2)').click() #FTO


driver.switch_to.frame('fto_details')
time.sleep(8)
driver.find_element_by_css_selector('html body table tbody tr td form table tbody tr td a img').click()#search





path = r'C:\Users\username\PycharmProjects\Python\WebScraping\Book2.xlsx'
workbook = xlrd.open_workbook(path)
sheet = workbook.sheet_by_index(0)


"""def check_exists_by_xpath(xpath):
    try:
        driver.find_element_by_xpath(xpath)
    except NoSuchElementException:
        return False

    return True
    """
for c in range(sheet.ncols):
    for r in range(sheet.nrows):
        st = (sheet.cell_value(r, c))
        try:
            if st == float(st):
                st_string = str(int(st))



                xpath = "//input[@value='Analyze' and contains(@onclick,'" + st_string + "')]"
                #cont = 0
                if driver.find_elements_by_xpath(xpath):
                    driver.find_element_by_xpath(xpath).click() #Here new window will open
                    handles = driver.window_handles
                    h = len(handles)#h=2

                    #print(handles)
                    for handle in range(1,h):
                    #for handle in range(h):

                        driver.switch_to.window(handles[handle])
                        #driver.find_element_by_xpath('/html/body/table/tbody/tr[4]/td/table/tbody/tr[9]/td[3]/input').click()
                        driver.find_element_by_css_selector('.t2').click()
                        #time.sleep(2)
                        #driver.close()

                        lst_window = driver.window_handles
                        h2 = len(lst_window) #h2=2
                        def check_exists_by_xpath(xpath):
                            try:
                                driver.find_element_by_xpath(xpath)
                            except NoSuchElementException:
                                return False
                            return True

                        for lst_handle in range(2,h2):
                        #for lst_handle in range(1,h2):
                            driver.switch_to.window(lst_window[lst_handle])
                            xpath2 = "//*[@id='create_button']"
                            xpath3="//*[@id='update_button']"
                            #css2 = '#create_button'
                            #css3 = '#update_button'
                            if check_exists_by_xpath(xpath2):
                                driver.find_element_by_xpath(xpath2).click()
                                #driver.close()

                            elif check_exists_by_xpath(xpath3):
                                driver.find_element_by_xpath(xpath3).click()
                                #driver.close()

                           #if driver.find_element_by_css_selector(css2):
                            #    driver.find_element_by_css_selector(css2).click()
                            #elif driver.find_element_by_css_selector(css3):
                             #   driver.find_element_by_css_selector(css3).click()

                            #if driver.find_element_by_xpath(xpath2) or driver.find_element_by_xpath(xpath3):
                             #   driver.find_element_by_xpath(xpath2 or xpath3).click()
                              #  driver.close()
                            #elif driver.find_element_by_xpath(xpath3):
                                #driver.find_element_by_xpath(xpath3).click()
                                #driver.close()





                #cont+=1
            #print(cont)



        #except ValueError:
        except Exception:
            if st == str(st):
                xpath = "//input[@value='Analyze' and contains(@onclick,'" + st + "')]"
                #cont1=0
                if driver.find_elements_by_xpath(xpath):
                    driver.find_element_by_xpath(xpath).click()  # Here new window will open
                    handles = driver.window_handles
                    h = len(handles)  # h=2

                    # print(handles)
                    for handle in range(1, h):
                        # for handle in range(h):

                        driver.switch_to.window(handles[handle])
                        driver.find_element_by_xpath('/html/body/table/tbody/tr[4]/td/table/tbody/tr[9]/td[3]/input').click()
                        #time.sleep(5)
                        #driver.close()

                        lst_window = driver.window_handles
                        h2 = len(lst_window)  # h2=2
                        def check_exists_by_xpath(xpath):
                            try:
                                driver.find_element_by_xpath(xpath)
                            except NoSuchElementException:
                                return False
                            return True
                        #for lst_handle in range(1, h2):
                        for lst_handle in range(2,h2):
                            driver.switch_to.window(lst_window[lst_handle])
                            xpath2 = "//*[@id='create_button']"
                            xpath3 = "//*[@id='update_button']"
                            if check_exists_by_xpath(xpath2):
                                driver.find_element_by_xpath(xpath2).click()
                                #driver.close()

                            elif check_exists_by_xpath(xpath3):
                                driver.find_element_by_xpath(xpath3).click()
                                #driver.close()


"""
                            if driver.find_element_by_xpath(xpath2):
                                driver.find_element_by_xpath(xpath2).click()
                                driver.close()
                            elif driver.find_element_by_xpath(xpath3):
                                driver.find_element_by_xpath(xpath3).click()
                                """

我的代码有什么问题。 在excel中，我有n个值（行），只有第一个值代码才能成功执行。其余的值都在增加，但是

xpath = "//input[@value='Analyze' and contains(@onclick,'" + st_string + "')]"
                #cont = 0
                if driver.find_elements_by_xpath(xpath):

在这段代码之后，控件移回 Excel（for 循环），有时它会抛出 ValueError。

except Exception:
    if st == str(st):
        xpath = "//input[@value='Analyze' and contains(@onclick,'" + st + "')]"
        #cont1=0

这里抛出异常为

Traceback (most recent call last): File "m.py", line 53, in <module> if st == float(st): ValueError: could not convert string to float: '23' During handling of the above exception, another exception occurred: Traceback (most recent call last):

谁能帮帮我，谢谢。

Answer 1

鉴于您的最新评论，似乎第二个窗口（至少）不会包含"//*[@id='create_button']" 或"//*[@id='update_button']" 中的至少一个。在这种情况下，在下面的代码块中，

if driver.find_element_by_xpath(xpath2):
    driver.find_element_by_xpath(xpath2).click()
    driver.close()
elif driver.find_element_by_xpath(xpath3):
    driver.find_element_by_xpath(xpath3).click()
    driver.close()

至少有一个

if driver.find_element_by_xpath(xpath2):

或

elif driver.find_element_by_xpath(xpath3):

将抛出一个ElementNotFoundException 将您发送到您的except 块。

这是因为执行driver.find_element_by_xpath() 会在找不到该元素的任何时候抛出这样的错误。

我不确定您要完成什么或您的页面是什么样的，所以我不知道要进行什么修复，但这似乎是您的问题的原因。如果您可以提供更多详细信息，说明您正在尝试使用此循环做什么，我可能会提出修复建议。

再想一想，以下可能可行：

在某处添加这个导入和函数：

from selenium.common.exceptions import NoSuchElementException        
def check_exists_by_xpath(xpath):
try:
    webdriver.find_element_by_xpath(xpath)
except NoSuchElementException:
    return False
return True

然后，将原始 if 块更改为：

if check_exists_by_xpath(xpath2):
    driver.find_element_by_xpath(xpath2).click()
    driver.close()
elif check_exists_by_xpath(xpath3):
    driver.find_element_by_xpath(xpath3).click()
    driver.close()

---

编辑这几乎就是我的想法。有帮助吗？

from selenium import webdriver
import time
from selenium.common.exceptions import NoSuchElementException
import xlrd

driver = webdriver.Chrome(r'C:\Users\tmou\PycharmProjects\Python\WebScraping\chromedriver.exe')
driver.maximize_window()
driver.get('https://www.stew.cyz.com/st/st_main.php')
driver.switch_to.frame('ST_mainFrame')
emailElem = driver.find_element_by_xpath('//*[@id="log_main"]/input')

# emailElem=browser.find_element_by_id('log_main')
# emailElem=browser.find_element_by_name("hpuser_id")
emailElem.send_keys('xyn@hyo.com')
# time.sleep(5)
passwordElem = driver.find_element_by_xpath('//*[@id="log_main"]/p[1]/input')
passwordElem.send_keys('********')
passwd = passwordElem.find_element_by_xpath('//*[@id="log_main"]/p[2]/input').click()
driver.switch_to.parent_frame()
driver.switch_to.frame('topFrame')

driver.find_element_by_css_selector(
'.menu > ul:nth-child(1) > li:nth-child(7) > a:nth-child(1) > span:nth-child(1)').click()  # Reports
driver.switch_to.parent_frame()
driver.switch_to.frame('ST_mainFrame')
driver.find_element_by_css_selector(
'div.menu_row:nth-child(16) > span:nth-child(3) > label:nth-child(2)').click()  # FTO

driver.switch_to.frame('fto_details')
time.sleep(8)
driver.find_element_by_css_selector('html body table tbody tr td form table tbody tr td a img').click()  # search


path = r'C:\Users\tmou\PycharmProjects\Python\WebScraping\Book2.xlsx'
workbook = xlrd.open_workbook(path)
sheet = workbook.sheet_by_index(0)

for c in range(sheet.ncols):
    for r in range(sheet.nrows):
    st = (sheet.cell_value(r, c))
    try:
        if st == float(st):
            st_string = str(int(st))
            xpath = "//input[@value='Analyze' and contains(@onclick,'" + st_string + "')]"
            # cont = 0
            if driver.find_elements_by_xpath(xpath):
                driver.find_element_by_xpath(xpath).click()  # Here new window will open
                handles = driver.window_handles
                h = len(handles)  # h=2

                # print(handles)
                for handle in range(1, h):
                    # for handle in range(h):

                    driver.switch_to.window(handles[handle])
                    driver.find_element_by_xpath(
                        '/html/body/table/tbody/tr[4]/td/table/tbody/tr[9]/td[3]/input').click()
                    time.sleep(2)
                    driver.close()

                    lst_window = driver.window_handles
                    h2 = len(lst_window)  # h2=3

                    def check_exists_by_xpath(xpath):
                        try:
                            webdriver.find_element_by_xpath(xpath)
                        except NoSuchElementException:
                            return False
                        return True

                    # for lst_handle in range(2,h2):
                    for lst_handle in range(1, h2):
                        driver.switch_to.window(lst_window[lst_handle])
                        xpath2 = '//*[@id="create_button"]'
                        xpath3 = '//*[@id="update_button"]'


                        if check_exists_by_xpath(xpath2):
                            driver.find_element_by_xpath(xpath2).click()
                            driver.close()
                        elif check_exists_by_xpath(xpath3):
                            driver.find_element_by_xpath(xpath3).click()
                            driver.close()

            # cont+=1
        # print(cont)



    # except ValueError:
    except Exception:
        if st == str(st):
            xpath = "//input[@value='Analyze' and contains(@onclick,'" + st + "')]"
            # cont1=0
            if driver.find_elements_by_xpath(xpath):
                driver.find_element_by_xpath(xpath).click()  # Here new window will open
                handles = driver.window_handles
                h = len(handles)  # h=2

                # print(handles)
                for handle in range(1, h):
                    # for handle in range(h):

                    driver.switch_to.window(
                        handles[handle])  # /html/body/table/tbody/tr[4]/td/table/tbody/tr[9]/td[3]/input
                    driver.find_element_by_xpath(
                        '/html/body/table/tbody/tr[4]/td/table/tbody/tr[9]/td[3]/input').click()
                    # time.sleep(5)
                    driver.close()

                    lst_window = driver.window_handles
                    h2 = len(lst_window)  # h2=2

                    for lst_handle in range(2, h2):
                        if driver.switch_to.window(lst_window[lst_handle]):
                            driver.find_element_by_xpath('//*[@id="create_button"]').click()
                            driver.close()
                        else:
                            driver.find_element_by_xpath('//*[@id="update_button"]').click()
                            driver.close()

Answer 2

看起来您当前的问题只是您试图将带有字母字符的字符串转换为需要严格数值的浮点数。您的 Excel 工作表上的任何数据都无法转换为数字。