Python Xpath 使用 text() 和 @class 作为条件定位元素

我试图在网上store 中自动将商品添加到购物车，然而，我陷入了一个应该区分商品是否可用的循环中.

以下是循环:

while True:
        #if ???
            WebDriverWait(driver, 5).until(EC.element_to_be_clickable((By.XPATH, "//*[text()='" + size.get() + "']"))).click()
            sleep(1)
            WebDriverWait(driver, 5).until(EC.element_to_be_clickable((By.XPATH, "//*[text()='Add to cart']"))).click()
            sleep(1)
            print("Success!")
            break
        else:
            driver.refresh()
            sleep(3)

如果尺寸可用，则按钮处于活动状态:

<div class="styles__ArticleSizeItemWrapper-sc-dt4c4z-4 eQqdpu">
    <button aria-checked="false" role="radio" class="styles__ArticleSizeButton-sc-1n1fwgw-0 jIVZOs">
        <span class="styles__StyledText-sc-cia9rt-0 styles__StyledText-sc-1n1fwgw-2 styles__ArticleSizeItemTitle-sc-1n1fwgw-3 gnSCRf cLhSqA bipwfD">XL</span>
        <span class="styles__StyledText-sc-cia9rt-0 ffGzxX">
        </span>
    </button>
</div>

否则，按钮处于非活动状态:

<div class="styles__ArticleSizeItemWrapper-sc-dt4c4z-4 eQqdpu">
    <button disabled="" aria-checked="false" role="radio" class="styles__ArticleSizeButton-sc-1n1fwgw-0 fBeTLI">
        <span class="styles__StyledText-sc-cia9rt-0 styles__StyledText-sc-1n1fwgw-2 styles__ArticleSizeItemTitle-sc-1n1fwgw-3 gnSCRf cLhSqA bipwfD">XXL</span>
        <span class="styles__StyledText-sc-cia9rt-0 styles__StyledText-sc-1n1fwgw-2 kQJTJc cLhSqA">
        </span>
    </button>
</div>

The question is: what should be the condition for this loop?

我试过这样的方法:

if (driver.find_elements(By.XPATH, "//*[contains(@class='styles__ArticleSizeButton-sc-1n1fwgw-0 jIVZOs') and text()='" + e2.get() + "']")):

EDIT:将上述代码中的"="替换为"，"，如下所示:

if (driver.find_elements(By.XPATH, "//*[contains(@class='styles__ArticleSizeButton-sc-1n1fwgw-0 jIVZOs') and text()='" + e2.get() + "']")):

但我一直得到无效的xpath表达式错误.

EDIT:错误消失，但浏览器会使用else语句(未找到元素)不断刷新.