关于python：为什么find_element_by_xpath（）采用3位置参数？


Why find_element_by_xpath() taking 3 positional argument?

*args以tuple形式解包定位器。但我只给出了两个参数，但它有三个参数。需要帮助才能理解。

我对使用python的Selenium还是个新手，在Github上玩过一些代码，但是出错了。

类型错误：find_element_by_xpath()接受2个位置参数，但给出了3个

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
locator.py
from selenium.webdriver.common.by import By
class elements(object):
      Customer = (By.XPATH,"//button[contains(text(),'Customer')]")


base.py
from selenium import webdriver
from selenium.webdriver.common.by import By

class Page(object):
    def __init__(self,driver,url=None):
        self.url = url
        self.driver = driver

    def find_element_with_click(self,*locator):
        self.driver.find_element_by_xpath(*locator).click()


pages.py
from selenium import webdriver
from base import Page
from locator import *

class CustomerCreation(Page):
    def __init__(self, driver):
        self.locator = elements
        super().__init__(driver)

    def create_customer(self):
        self.driver.find_element_with_click(*self.locator.Customer)


testPages.py
import unittest
from selenium import webdriver
from pages import *
from locators import *
from selenium.webdriver.common.by import By

class TestPages(unittest.TestCase):

    @classmethod
    def setUpClass(cls):
        cls.driver = webdriver.Chrome('C:\ChromeDriver\chromedriver')
        cls.driver.get("#server")


    def test_tes_cust(self):
        page = CustomerCreation(self.driver)
        res_page = page.create_customer()          #Getting issue at this stage

    @classmethod
    def tearDownClass(cls):
        cls.driver.close()


if __name__ =="__main__":
    suite = unittest.TestLoader().loadTestsFromTestCase(TestPages)
    unittest.TextTestRunner(verbosity=2).run(suite)

错误日志：

test_tes_cust (main.TestPages) ... ERROR
======================================================================
ERROR: test_tes_cust (main.TestPages)
----------------------------------------------------------------------
Traceback (most recent call last):
File"testPages.py", line 28, in test_tes_cust
res_page = page.create_customer()
File"C:\Users###\PycharmProjects\basics\pages.py", line 35, in create_customer
self.find_element_with_click(*self.locator.Customer)
File"C:\Users###\PycharmProjects\basics\base.py", line 21, in find_element_with_click
self.driver.find_element_by_xpath(*locator).click()
TypeError: find_element_by_xpath() takes 2 positional arguments but 3 were given

号

你又传了一个论点。你的论点是：

  • self。
  • 江户十一〔一〕号
  • 埃多克斯1〔2〕

    • 这就是您需要传递给find_element方法的内容。虽然find_element_by_xpath只应采用两个论点：

  • self。
  • 埃多克斯1〔2〕

    • 所以尝试将代码更新为

    1
    2
    def find_element_with_click(self,*locator):
        self.driver.find_element(*locator).click()

    或者您需要将您的Customer修改为：

    1
    Customer ="//button[contains(text(),'Customer')]"

    号

    和

    1
    2
    def find_element_with_click(self, xpath):
        self.driver.find_element_by_xpath(xpath).click()