unable to click on the element Python Selenium

'm not able to click on the element. The code without letting me to see the Exception jumping to Except Block. In Except block also first 2 lines after flow control is going to for c in range(sheet.ncols): for r in range(sheet.nrows): Here not able to find or click on the xpath. And the code output is Process finished with exit code 0

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('[email protected]')
# 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()
                                """

What's wrong with my code. In excel i've n number of values(rows) in that only for the first value code is executing successfully. Rest of the values picking up, but

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

After this code the control moving back Excel(for loop) and some some time it's throwing ValueError.

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

Here throwing an exception as

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):

Can anyone help me, Thanks.