Question

我正在使用Selenium和Python创建框架。我的数据驱动框架应包含（到目前为止）3个文件：

1) Config.py have class Config() that have all the nessesary methods such as: 
   def setUp() - 
   def tearDown()
   def click()
   def send_keys()

2) data.py - with all data 

3) test.py - with all of the steps

我目前正在研究click（）方法。

我想将2个参数传递给此方法，它将使用slice（）确定我使用的是哪种定位器，然后单击相应地。不幸的是，不管我做什么-它一直丢给我一些错误。

config.py：

from   selenium import webdriver
from   selenium.webdriver.common.by import By
from   selenium.webdriver.common.keys import Keys
from   selenium.webdriver.support.ui import Select
from   selenium.common.exceptions import NoSuchElementException
from   selenium.common.exceptions import NoAlertPresentException

class Actions(object):

    def __init__(self, driver):
        self.driver = driver


    def setUp(self):
        self.driver = webdriver.Chrome()
        self.driver.implicitly_wait(30)

    def tearDown(self):
        self.driver.quit()


    def click(self, elemLocator, elemValue):
        elp = elemLocator
        flp = slice(0,2)
        if elp[flp] == 'id':
            try:
                self.driver.find_element_by_id(elemValue).click()
            except:
                pass
        elif elp[flp] == 'xp':
            try:
                self.driver.find_element_by_xpath(elemValue).click()
            except:
                pass
        elif elp[flp] == 'li':
            try:
                self.driver.find_element_by_link_text(elemValue).click()
            except:
                pass
        elif elp[flp] == 'na':
            try:
                self.driver.find_element_by_name(elemValue).click()
            except:
                pass
        elif elp[flp] == 'cs':
            try:
                self.driver.find_element_by_css_selector(elemValue).click()
            except:
                pass
        elif elp[flp] == 'pa':
            try:
                self.driver.find_element_by_partial_link_text(elemValue).click()
            except:
                pass
        elif elp[flp] == 'ta':
            try:
                self.driver.find_element_by_tag_name(elemValue).click()
            except:
                pass
        elif elp[flp] == 'cl':
            try:
                self.driver.find_element_by_class_name(elemValue).click()
            except:
                pass


    def send_keys(self):
        pass

test.py：

from   selenium import webdriver
from   selenium.webdriver.common.by import By
from   selenium.webdriver.common.keys import Keys
from   selenium.webdriver.support.ui import Select
from   selenium.common.exceptions import NoSuchElementException
from   selenium.common.exceptions import NoAlertPresentException
from Setup import Actions

action = Actions()
action.setUp()

错误消息：

Traceback (most recent call last):
  File "/Users/a./Desktop/Automation_Work/correct_PPLS/oop/Test.py", line 9, in <module>
    action = Actions()
TypeError: __init__() takes exactly 2 arguments (1 given)
[Finished in 0.153s]

Answer 1

如果要调用非静态方法，则必须创建该类的实例。

我不确定您使用的是Python 2还是3，但是这是使方法在2中保持静态的方法：https://docs.python.org/2/library/functions.html#staticmethod

Answer 2

您似乎在不带任何参数的情况下调用Action()。您实际上是在调用Action.__init__(self)，而没有提供driver参数。这就是为什么您得到TypeError: __init__() takes exactly 2 arguments (1 given)的原因。给定的1是self，由Python自动提供，而缺少的1是driver。

Answer 3

只需如下更改__init__。

def __init__(self,driver=None):
    if driver != None:
        self.driver = driver

现在，您可以通过或不通过驱动程序来调用__init__。但是，我建议将驱动程序声明在类之外，并使其成为全局类，以便您可以在任何地方访问它。

类似这样的东西：

from   selenium import webdriver
from   selenium.webdriver.common.by import By
from   selenium.webdriver.common.keys import Keys
from   selenium.webdriver.support.ui import Select
from   selenium.common.exceptions import NoSuchElementException
from   selenium.common.exceptions import NoAlertPresentException
driver = None
class Actions(object):

    def __init__(self, driver):
        self.driver = driver

    def setUp(self,browserName):
        global driver 
        if browserName == 'chrome' #<==== creating the driver based on browser (you can pass this as argument while calling this method)
            self.driver = webdriver.Chrome()
        self.driver.implicitly_wait(30)
        # return driver #<==== return driver so that you can store with other name if you are planning to launch 2nd instance of driver.

action = Actions()
action.setUp("chrome")

如何从另一个python文件中的一个python文件中的类调用方法

3 个答案: