打开文件时嵌套循环AttributeError：__ exit__（Selenium脚本）

Question

我正在尝试在循环中执行循环以在send_keys的消息框中传递变量。当我打开第二个文件“test2.txt”时，我似乎有一个错误，该文件包含我想传递给变量的信息。我对python很新，我不完全确定它意味着什么，并且无法通过搜索来解决它。

非常感谢任何帮助实现这一目标的帮助。

代码段：

 with open('test2.txt').read() as lp:
                    current = 1
                    for line in lp:
                        field_box.send_keys("""ID:""", lp)
                        driver.find_element_by_css_selector('.form-buttons').submit()
                        time.sleep(2)

完整代码：

import time
from selenium import webdriver

def doAction():
    driver = webdriver.Chrome ('/Users/xxx/chromedriver') # Set correct path for chromedriver: https://sites.google.com/a/chromium.org/chromedriver/downloads
    driver.get('https://www.site.com.au/login'); # Set which region you're working with
    time.sleep(1)
    search_box = driver.find_element_by_name('username')
    search_box.send_keys('xxx') # Set your e-mail/username
    search_box = driver.find_element_by_name('password')
    search_box.send_keys('xxx') # Set your password
    driver.find_element_by_css_selector('.btn.btn-primary.btn-md.btn-cm.pull-right').click()
    time.sleep(2)
    with open('test.txt') as fp:
        print '============================================'
        print 'Starting to disable entities................'
        print '============================================'
        current = 1
        for line in fp:
            url = 'https://www.site.com.au/admin/entities/%s' % line
            driver.get(url);
            time.sleep(3)
            driver.find_element_by_css_selector("input[type='radio'][value='false']").click()
            field_box_clear = driver.find_element_by_name('disabledReason').clear()
            field_box = driver.find_element_by_name('disabledReason')
            with open('test2.txt').read() as lp:
                current = 1
                for line in lp:
                    field_box.send_keys("""ID:""", lp)
                    driver.find_element_by_css_selector('.form-buttons').submit()
                    time.sleep(2)

            print "Doing",current,"Of",file_len('test.txt')
            current += 1
            print '- Disabled entity: %s' % line
        print '============================================'
        print 'Completed disabling entities................'
        print '============================================'

def file_len(fname):
    with open(fname) as f:
        for i, l in enumerate(f):
            pass
    return i + 1

if __name__ == "__main__":
    doAction()

Answer 1

问题是你试图用open('test2.txt').read() statement包裹with。

  

为了实现上下文管理器，我们定义了一个包含的类   输入和退出方法。

open('test2.txt').read()的结果没有实现。而不是，你应该包裹open('test2.txt')（以自动关闭文件）。

with open('test2.txt') as lp:
    current = 1
    ...