使用请求无法选择和上传pdf文件

我正在尝试使用post http请求在python中创建脚本，以在网页中上传此* pdf *文件。我已经尝试过以下操作，但是很遗憾，脚本无法上传文件。

这是登录链接。这是用户名* SmthShift_123 和密码 7 / B！yzRd8wuK！N2 *供您考虑。现在转到此页面，然后单击最后一个选项卡Anhang，您将在其中找到上载选项。

为了让您形象化-* this *是该页面的外观。

到目前为止，这是我的尝试：

import requests
from bs4 import BeautifulSoup

login_url = 'https://jobs.commerzbank.com/index.php?ac=login'
application_link = 'https://jobs.commerzbank.com/index.php?ac=application&jobad_id=30670'
target_link = 'https://jobs.commerzbank.com/index.php?ac=application&page=6'
upload_link = 'https://jobs.commerzbank.com/inc/candidate_attachments.php'


with requests.Session() as s:
    s.headers['User-Agent'] = 'Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.132 Safari/537.36'
    res = s.get(login_url)
    sauce = BeautifulSoup(res.text,"lxml")
    elem = {i['name']:i.get('value','') for i in sauce.select('input[name]')}
    elem['username'] = 'SmthShift_123'
    elem['password'] = '7/B!yzRd8wuK!N2'

    s.post(login_url,data=elem)
    s.get(application_link)
    resp = s.get(target_link)

    soup = BeautifulSoup(resp.text,"lxml")
    payload = {i['name']:i.get('value','') for i in soup.select('input[name]')}
    payload['form-control'] = 'Anschreiben'
    payload['upload'] = 'Datei hochladen'
    payload['save'] = ''

    files = {
        'searchButton': open('CV.pdf','rb')
    }
    s.post(upload_link,files=files,data=payload)

当我执行上述脚本时，它既不保存该文件也不引发任何错误。

我也这样尝试过（仅使用硒进行上传），但脚本也无法选择并上传文件：

s.post(login_url,data=elem)
s.get(application_link)
resp = s.get(target_link)

driver = webdriver.Chrome()
driver.get(resp.url)
driver.delete_all_cookies()

for cookie in s.cookies.items():
    driver.add_cookie({"name": cookie[0], "value": cookie[1]})

driver.get(resp.url)

select = Select(WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.CSS_SELECTOR, "select#upload_category"))))
select.select_by_visible_text("Lebenslauf")
WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.CSS_SELECTOR, "input#upload_file"))).send_keys("C://Users/WCS/Desktop/CV.pdf")

如何使用请求选择和上传pdf文件？

问题来源：stackoverflow