当我们尝试在列表而不是字符串上调用find()方法时,会出现 Python“**AttributeError: 'list' object has no attribute 'find'**”。 如果我们需要检查一个值是否在列表中,请使用in,如果我们需要获取列表中某个值的索引,请使用index()方法。 下面是产生上述错误的示例代码 my_list = ['apple','banana','kiwi...
原因: 通过webdriver对象的find_element_by_xx(" "),在selenium的4.0版本中此种用法已经抛弃。 解决方法: 1,通过webdriver对象的find_element("属性名","属性值") driver.find_element("id","wang") 2,通过webdriver模块中的By,以指定方式定位元素 导入模块:from selenium.webdriver.common.byimportBy driver.fi...
Role of cache stride while flushing CPU cache I understand that the stride value of a CPU cache can be equal to or greater than the cache line size, but I don't understand why a stride value is required? When will a CPU cache have a stride value ... ...
使用excel对接口的数据进行管理,添加接口数据时,可能习惯性选择多行,设置了格式,导致多选了很多空行也被设置了格式,在读取这个sheet的最大行数时,发现有问题,获取到了为None的空行,导致后面的查找方法find,报错”AttributeError: 'NoneType' object has no attribute 'find'” openpyxl分析: openpyxl里sheet.max_row...
Python是纯粹的自由软件， 源代码和解释器CPython遵循 GPL(GNU General Public License)协议 。Python语法简洁清晰，特色之一是强制用空白符(white space)作为语句缩进。Python具有丰富和强大的库。它常被昵称为胶水语言，能够把用其他语言制作的各种模块(尤其是C/C++)很轻松地联结在一起。常见的一种应用...
在跟着别人练习爬虫项目时,遇到了’NoneType’ object has no attribute ‘find_all’ 问题,具体报错如下 import requests from bs4 import BeautifulSoup url = 'https://movie.douban.com/top250?start=0&filter=' res= requests.get(url) html = res.text ...
Find object position based on python-opencv2for python2.7+ Usage import aircv as ac imsrc = ac.imread('youimage.png') # 原始图像 imsch = ac.imread('searched.png') # 带查找的部分 SIFT查找图像 print ac.find_sift(imsrc, imsch) # - when Not found @return None # 之前是返回的 [] ...
改一下这行代码即可：a = open('%s' % (filename),'r').read()
class FindElement(object): def __init__(self, driver): self.driver = driver def find_element(self, key): read_ini = ReadIni() data = read_ini.get_register_element(key) by = data.split(">")[0] values = data.split(">")[1] # try: if by == "id": return self.driver.find...
Vulture correctly reports os and message as unused but it fails to detect that greet is actually used. The recommended method to deal with false positives like this is to create a whitelist Python file.Preparing whitelistsIn a whitelist we simulate the usage of variables, attributes, etc. For...