[问题] 自订function该输入哪些变量?

楼主: A601B8 (MBD)   2019-06-02 00:25:47
最近在学习selenium webdriver寻找元素时
常需要重复打
find_element_by_id或xpath或name等等....
如是还要加上explicit wait时
就会让code变得又臭又常
刚好在逛论坛时看到有个网友PO了一个自订function
======
from selenium import webdriver
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support.select import Select
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.common.by import By
from abc import abstractmethod
class LocatorMode:
XPATH = "xpath"
CSS_SELECTOR = "cssSelector"
NAME = "name"
ID = "id"
TAG_NAME = "tagName"
class BasePage(object):
def __init__(self, driver):
self.driver = driver
def wait_for_element_visibility(self, waitTime, locatorMode, Locator):
element = None
if locatorMode == LocatorMode.ID:
element = WebDriverWait(self.driver, waitTime).\
until(EC.visibility_of_element_located((By.ID, Locator)))
elif locatorMode == LocatorMode.NAME:
element = WebDriverWait(self.driver, waitTime).\
until(EC.visibility_of_element_located((By.NAME, Locator)))
elif locatorMode == LocatorMode.XPATH:
element = WebDriverWait(self.driver, waitTime).\
until(EC.visibility_of_element_located((By.XPATH, Locator)))
elif locatorMode == LocatorMode.CSS_SELECTOR:
element = WebDriverWait(self.driver, waitTime).\
until(EC.visibility_of_element_located((By.CSS_SELECTOR,
Locator)))
else:
raise Exception("Unsupported locator strategy.")
return element
=====
我试了好多次都没办法成功呼叫这个function
我现在希望的状况是
1.用tagname来找element,且假设网页中element的tagname="tr"
2.EC是在visibility_of_element_located的状况
3.等待时间是10秒
所以我自己试了一下
element = BasePage.wait_for_element_visibility(10,tagName,"tr")
element.click()
但如果用这样的input执行的话
系统会返回:
name 'tagName' is not defined
要是换成
element = BasePage.wait_for_element_visibility(10,"tagName","tr")
element.click()
系统会返回:
wait_for_element_visibility() missing 1 required positional argument:
'Locator'
请问我要怎么输入括号内的变量,才能成功执行BasePage里面的function呢?
作者: CaptainH (Cannon)   2019-06-02 02:58:00
你跳关了,先把语言本身的语法基础弄懂再来搞爬虫之类的
作者: jiyu520 (不要鲫鱼我)   2019-06-02 07:28:00
基本观念走一次
作者: art1 (人,原来不是人)   2019-06-02 07:32:00
似乎是要多用一层小括号把你的 3 个引数包起来又好像是呼叫 BasePage 时需要先加一个 driver 的引数?
作者: sean50301 ( (づ′・ω・)づ)   2019-06-02 10:49:00
你的BasePage没有建出instance 所以少传一个self
作者: vi000246 (Vi)   2019-06-02 10:51:00
同一楼 你要先把变量、类别这章再读过一遍看完后你就会发现 要传进去的是LocatorMode里的member然后你可能会遇到sean大提到的问题 把类别这章读熟吧
作者: art1 (人,原来不是人)   2019-06-02 15:05:00
这种少了第一个参数,但错误讯息却是说你少了最后一个参数对类别不熟的人就会被误导了

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