問題描述
我想用 Python 解析一個 HTML 文件，我使用的模塊是 BeautifulSoup.
I would like to parse an HTML file with Python, and the module I am using is BeautifulSoup.
據說函數find_all和findAll是一樣的.我都試過了，但我相信它們是不同的:
It is said that the function find_all is the same as findAll. I've tried both of them, but I believe they are different:
import urllib, urllib2, cookielib
from BeautifulSoup import *
site = "http://share.dmhy.org/topics/list?keyword=TARI+TARI+team_id%3A407"
rqstr = urllib2.Request(site)
rq = urllib2.urlopen(rqstr)
fchData = rq.read()
soup = BeautifulSoup(fchData)
t = soup.findAll('tr')
誰能告訴我區別?
推薦答案
BeautifulSoup 4 中，方法完全相同；混合大小寫版本(findAll、findAllNext、nextSibling 等)都已重命名以符合 Python 風格指南，但 舊 名稱仍然可以使移植更容易.完整列表請參見方法名稱.
In BeautifulSoup version 4, the methods are exactly the same; the mixed-case versions (findAll, findAllNext, nextSibling, etc.) have all been renamed to conform to the Python style guide, but the old names are still available to make porting easier. See Method Names for a full list.
在新代碼中，你應該使用小寫版本，所以find_all等
In new code, you should use the lowercase versions, so find_all, etc.
然而，在您的示例中，您使用的是 BeautifulSoup version 3(自 2012 年 3 月起停止使用，如果您能提供幫助，請不要使用它)，其中只有 findAll() 可用.未知屬性名稱(例如 .find_all，僅在 BeautifulSoup 4 中可用)被視為您正在搜索該名稱的標簽.您的文檔中沒有 <find_all> 標記，因此為此返回 None.
In your example however, you are using BeautifulSoup version 3 (discontinued since March 2012, don't use it if you can help it), where only findAll() is available. Unknown attribute names (such as .find_all, which only is available in BeautifulSoup 4) are treated as if you are searching for a tag by that name. There is no <find_all> tag in your document, so None is returned for that.
這篇關于“findAll"之間的區別和“find_all"在美麗湯的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！