将元组转换为自定义字符串

Question

我面临一个情况

这是一个class的例子

class SearchCustomerLocators:

    txtEmail_id = (By.ID, "SearchEmail")
    txtFirstName_id = (By.ID,"SearchFirstName")
    txtLastName_id = (By.ID,"SearchLastName")
    btnSearch_id = (By.ID,"search-customers")

所以当我调用自定义函数时...

self.click(*SearchCustomerLocators.txtEmail_xpath)

点击功能如下

def click(self, webelement):
    #self._driver.execute_script("arguments[0].scrollIntoView();", webelement)
    el = self._wait.until(expected_conditions.element_to_be_clickable(webelement))
    self._highlight_element(el, "green")
    el.click()

问题是 Click 函数只需要 1 个参数作为完整字符串 ('xpath', "//button[@type='submit']")

但是 *SearchCustomerLocators.txtEmail_xpath 返回的字符串与
一样 xpath //按钮[@type='submit']

如何操作字符串以获得自定义输出？

当我试图操纵这个 x = *SearchCustomerLocators.txtEmail_xpath 我收到错误 Can't use starred expression here

Answer 1

看来您只需要从以下位置删除 *：

self.click(*SearchCustomerLocators.txtEmail_xpath)

成为：

self.click(SearchCustomerLocators.txtEmail_xpath)

下面是一个简单的示例脚本，用于单击此页面上的“提问”按钮。请注意，我不会亲自以这种方式进行设置，但我试图复制您在上面发布的功能。

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.firefox.service import Service
import sys
sys.path.append('D:\Path\to\your\geckodriver.exe')
service = Service('D:\Path\to\your\geckodriver.exe')
driver = webdriver.Firefox(service=service)

class SearchCustomerLocators:
    txtEmail_id = (By.ID, "SearchEmail")
    txtFirstName_id = (By.ID,"SearchFirstName")
    txtLastName_id = (By.ID,"SearchLastName")
    btnSearch_id = (By.ID,"search-customers")
    txtButton = (By.XPATH, "//a[contains(text(), 'Ask Question')]")

def click(self, webelement):
    #self._driver.execute_script("arguments[0].scrollIntoView();", webelement)
    el = self._wait.until(EC.element_to_be_clickable(webelement))
    # self._highlight_element(el, "green")
    el.click()

class MAIN:
    def __init__(self):
        self.driver = driver
        self.click = click
        self._wait = WebDriverWait(self.driver, 10)

def main():
    MAIN().driver.get("
    MAIN().click(MAIN(), SearchCustomerLocators.txtButton)

if __name__ == "__main__":
    main()

回答有关星号意义的问题：

参见 PEP 448 https://peps.python.org/pep-0448/

一些可以尝试的例子： https://www.w3schools.com/python/python_tuples_unpack.asp

将元组转换为自定义字符串

Convert a tuple into a custom string

python