AttributeError：类型对象“By”在 def CheckStock(myUrl,model) 中没有属性“Class_Name”

Question

我在阿迪达斯网站上找不到课程。当尝试在 html 中查找类时，出现上述错误。我正在尝试用我的鞋机器人自动选择特定尺寸的过程。当我检查 html 代码时，我在代码中找到的类就是我在代码中编写的类。我是否错误地呼叫了班级？

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.support.ui import WebDriverWait


def UrlGenwithSize(size,model,name):
    base=580                   ####size of shoe
    mysize=(size-4)*20         #### for a shoe of size 6.5
    finalSize=base+mysize
    Url="https://www.adidas.com/us/"+name+"/"+model+".html?forceSelSize="+model+"_"+str(finalSize)
    return Url

def UrlGenProduct(name,model):
    url="https://www.adidas.com/us/"+name+"/"+model+".html"
    return url

def CheckStock(myUrl,model):
    try:
        driver = webdriver.Chrome(executable_path=r'C:\Python39\Lib\site-packages\webdriver_bot\webdrivers\chromedriver.exe')
        driver.get(myUrl)
        WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.Class_Name, "size-selector___2htsB")))  ###sets a time max of 10 secs and waits for the elements
        username = driver.find_element_by_class_name('sizes___3Stmf fractions-decoration-reset___22Rwq')
        buttons = username.find_elements_by_tag_name("button") ###get all the options into a list
        buttonsList = []
        for button in buttons:
            buttonsList.append(button.get_attribute('innerHTML')) ###a list with sizes
        for sizes in buttonsList:
            if sizes.isdigit(): ###printing only if size in the list is a digit
                print("Size" + sizes + "for" + model + "is available")
    finally:
        driver.quit()

url=UrlGenProduct("Kaptir Shoes","EE9513")
CheckStock(url,"EE9513")
size=int(input("Please enter size"))
myURL=UrlGenwithSize(6.5,"EE9513","Kaptir Shoes")
addToCart(myURL)

Answer 1

尝试大写字母

WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.CLASS_NAME, "size-selector___2htsB")))

Answer 2

这是我等待文本“Act as Wendy James”出现在页面上的示例

WebDriverWait(driver, 10).until(EC.text_to_be_present_in_element((By.CLASS_NAME, "css-mu6pi4-text"), "Act as Wendy James"))