自动登录

Question

我想运行python selenium并自动登录过程。

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

currentDate = ("{:%Y%m%d}".format(datetime.now())) 
usernameStr = 'email' 
passwordStr = 'passoword' 

browser = webdriver.Chrome() 
browser.get('http://website.com/en/entry?' + 'date=' + currentDate) 
delay = 3 


loginButton = browser.find_element_by_xpath('//*[@id="global-header"]/div[2]/ul/li[2]/a') 
loginButton.click() 
delay = 3 
Username = browser.find_element_by_name('Username or Email Address') 
Username.send_keys(usernameStr) 
password = browser.find_element_by_name('password') 
password.send_keys(passwordStr) 
nextButton = browser.find_element_by_class_name('vm.submitLogin()') 
nextButton.click() 

这里是我试图访问

<span class="input-wrapper"> 
<input type="email" placeholder="Username or Email Address" 
autocapitalize="none" autocomplete="on" autocorrect="off" spellcheck="false" 
ng-model="vm.username" ng-pattern="/^[^<&quot;>]*$/" 
ng-required="true" did-disable-validate=" 
"ng-focus="vm.resetUsername()" 
class="ng-pristine ng-invalid ng-invalid-required ng-valid-pattern 
ng-touched" tabindex="0" 
required="required" aria-required="true" aria-invalid="true"></span> 

我试过的名字，CSS选择器，XPath来访问HTML代码的HTML，但似乎没有任何工作。这是一个登录横幅，而不是一个标准的HTML页面，所以idk，如果这有所作为。

雅呵这里有错误，我得到

Traceback (most recent call last): 
    File "/Users/aj/Desktop/streakscraper/login.py", line 20, in <module> 
    Username = browser.find_element_by_name('Username or Email Address') 
    File "/usr/local/lib/python3.6/site-packages/selenium/webdriver/remote/webdriver.py", line 378, in find_element_by_name 
    return self.find_element(by=By.NAME, value=name) 
    File "/usr/local/lib/python3.6/site-packages/selenium/webdriver/remote/webdriver.py", line 784, in find_element 
    'value': value})['value'] 
    File "/usr/local/lib/python3.6/site-packages/selenium/webdriver/remote/webdriver.py", line 249, in execute 
    self.error_handler.check_response(response) 
    File "/usr/local/lib/python3.6/site-packages/selenium/webdriver/remote/errorhandler.py", line 193, in check_response 
    raise exception_class(message, screen, stacktrace) 
selenium.common.exceptions.NoSuchElementException: Message: no such element: Unable to locate element: {"method":"name","selector":"Username or Email Address"} 
    (Session info: chrome=57.0.2987.133) 
    (Driver info: chromedriver=2.29.461585 (0be2cd95f834e9ee7c46bcc7cf405b483f5ae83b),platform=Mac OS X 10.12.4 x86_64) 

Answer 1

你应该切换到正确的iframe，然后尝试匹配html：

要切换到不同的iframe使用：

driver.switch_to.frame(driver.find_element_by_name("iframe_name")) 

或简单地：

driver.switch_to.frame("iframe_name") 

您还可以通过索引来访问它：

driver.switch_to.frame(0) # 1, 2, etc.. if you have multiple iframes 

要切换回主内容的使用：

driver.switch_to.default_content()