При использовании привязок Python, Selenium WebDriver click () иногда не работает.

Я пытаюсь отправить ввод (type = button). Но мне не удается обновить значение. Любая помощь приветствуется. Я приложил тестовый пример ниже для вашей справки.

ищите здесь ЗАПИСЫВАЮТ ОТСУТСТВИЕ

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import Select
from selenium.common.exceptions import NoSuchElementException
import unittest, time, re,datetime,os,sys

from selenium.webdriver.common.keys import Keys
from selenium.webdriver.common.action_chains import ActionChains


def is_element_present(inst,selector,value):
    try:
        inst.find_element(by=selector, value=value)
        return True
    except:
        return False



class Testing(unittest.TestCase):
    def setUp(self):
        self.driver = webdriver.Chrome()
        self.driver.implicitly_wait(5)
        self.base_url = "http://new.ossmoketest.appspot.com/"
        self.verificationErrors = []

    def test_ing(self):
        try:

            driver = self.driver
            driver.get(self.base_url + "/Apab4b39d4_09d7_11e1_8df9_139372201eeb/1/signin?forward=/%3F")
            now = datetime.datetime.now()
            start = time.clock()

            for i in range(5000000):
                try:
                    if is_element_present(driver,By.ID,"userid"): break
                except: pass
            else: self.fail("time out")
            end = time.clock()
            diff = end - start
            print diff
            driver.find_element_by_id("userid").clear()
            driver.find_element_by_id("userid").send_keys("senthil.arumugam@orangescape.com")
            driver.find_element_by_xpath("//input[@src='/static/images/signup.png']").click()
            print 'finished'
            start = time.clock()

            for i in range(5000000):
                try:
                    if is_element_present(driver,By.LINK_TEXT,"Logout"): break
                except: pass
            else: self.fail("time out")
            end = time.clock()
            diff = end - start
            print diff
            time.sleep(5)

            start = time.clock()
            name = "smoketest"+ str(now.minute) +str(now.second)
            for i in range(5000000):
                try:
                    if is_element_present(driver,By.LINK_TEXT,"PurchaseOrder"): break
                except: pass
            else: self.fail("time out")
            end = time.clock()
            diff = end - start
            driver.find_element_by_link_text('PurchaseOrder').click()
            name = "smoketest"+ str(now.minute) +str(now.second)
            start = time.clock()
            for i in range(5000000):
                try:
                    if is_element_present(driver,By.ID,"Customer_Name"): break
                except: pass
            else: self.fail("time out")
            end = time.clock()
            diff = end - start

            newproduct = "rexona"+ str(now.minute) +str(now.second)
            newprice = str(now.minute) +str(now.second)
            newprice = float(newprice)
            print newprice
            driver.find_element_by_xpath("//input[starts-with(@id,'New_Product')]").send_keys(newproduct)
            driver.find_element_by_xpath("//input[starts-with(@id,'Price')]").clear()
            time.sleep(3)

            driver.find_element_by_xpath("//input[starts-with(@id,'Price')]").send_keys(Keys.CONTROL+'a'+Keys.NULL, str(newprice))
            Mouse_cntrl = ActionChains(driver)
            Mouse_cntrl.release(driver.find_element_by_xpath("//input[starts-with(@id,'Price')]"))
            value = newprice
            print value
            time.sleep(2)
            print 'start'
            print driver.find_element_by_xpath("//input[starts-with(@id,'NewItem_NewItem')]").get_attribute('data-id')
            # ------------------------CLICK FAILS HERE ------------------------------
#            driver.find_element_by_xpath("//input[starts-with(@id,'NewItem_NewItem')]").click()
#            driver.find_element_by_xpath("//input[starts-with(@id,'NewItem_NewItem')]").submit()
            driver.find_element_by_xpath("//input[starts-with(@id,'NewItem_NewItem')]").send_keys(keys.ENTER)
#            Mouse_cntrl.double_click(driver.find_element_by_xpath("//input[starts-with(@id,'NewItem_NewItem')]"))
            for i in range(10):
                try:
                    print driver.switch_to_alert().text
                    if driver.switch_to_alert():
                        driver.switch_to_alert().accept()
                        break
                except: pass
                time.sleep(1)
            else:
                print "alert not found"
            print 'finished  -- '
            time.sleep(8)
            driver.find_element_by_xpath("//input[starts-with(@id,'Product')]").click()
            arg = newproduct
            print 'end'
            for i in range(60):
                try:
                    if is_element_present(driver,By.LINK_TEXT,arg): break
                except: pass
                time.sleep(1)
            else: self.fail("time out")
    #        sel.mouse_over("//html/body/ul/li/a[.=\""+arg+"\"]")
            driver.find_element_by_link_text(arg).click()
            start = time.clock()
            time.sleep(25)
            for i in range(1000000):
                try:

                    if newprice == float(driver.find_element_by_id('Unit_Price').text):
                        end = time.clock()
                        diff = end - start
                        log.log(module='Smoke',testcase='Action New', result='Pass',time_taken= diff)
                        break
                except: pass
            else:
                log.log(module='Smoke',testcase='Action New', result='Fail')
                self.fail('New Failure')
            log.log(module='Smoke',testcase='On Submit', result='Pass',time_taken= diff)
            driver.find_element_by_id('Quantity').send_keys(Keys.CONTROL+'a'+Keys.NULL,"1")
            time.sleep(5)
            start = time.clock()
            for i in range(1000000):
                try:
                    if value == float(driver.find_element_by_id('Unit_Price').text):
                        end = time.clock()
                        diff = end - start
                        log.log(module='Smoke',testcase='Multiply', result='Pass',time_taken= diff)
                        break
                except: pass
            else: self.fail("time out")
            for i in range(1000000):
                try:
                    if value == float(driver.find_element_by_id('Amount').text):
                        end = time.clock()
                        diff = end - start
                        log.log(module='Smoke',testcase='DSUM with Parent', result='Pass',time_taken= diff)
                        break
                except: pass
            else:
                end = time.clock()
                diff = end - start
                log.log(module='Smoke',testcase='DSUM with Parent', result='Fail',time_taken= diff)
                self.fail("time out")

        except:
            self.driver.quit()
            e = sys.exc_info()[1]
            print str(e)

    def tearDown(self):
        self.driver.quit()
        self.assertEqual([], self.verificationErrors)

if __name__ == "__main__":
     unittest.main()

Это было остановкой для моей работы. Любая помощь приветствуется. Спасибо