小编boo*_*erz的帖子

假设我有一个字符串,我想在看到某些字符之前或之后删除其余的字符串

例如,我的所有字符串都包含'egg':

"have an egg please"
"my eggs are good"

我想得到:

"egg please"
"eggs are good"

还有同样的问题,但我怎样才能删除除字符前面的字符串之外的所有字符串？

我已经重写了两次，我看不出问题，我已经在 python 2 上安装了 mechanize，并且我没有同时执行制表符和空格，我只执行空格。

import urllib
from bs4 import BeautifulSoup
import re
import urlparse
import mechanize

url = "http://www.dailymail.co.uk/home/index.html"
br = mechanize.Browser()
br.open(url)

for link in br.links():
    print link

错误是

Traceback (most recent call last):
  File "mechanize.py", line 4, in <module>
    import mechanize
  File "/home/ro/Autoblog/mechanize/mechanize.py", line 8, in <module>
    br = mechanize.Browser()
AttributeError: 'module' object has no attribute 'Browser'

请有人帮我这个,

我无法获得selenium点击python按钮.我在python 3.4上使用Firefox 42

浏览器打开,但就是这样

from selenium import webdriver
from selenium.webdriver.common.keys import Keys

driver = webdriver.Firefox()
driver.get("http://www.speedyshare.com/")
elem = find_element_by_id_name("selectfilebox")
elem.click()

浏览器打开但我收到以下错误

Traceback (most recent call last):
  File "/home/ro/sele.py", line 6, in <module>
    elem = find_element_by_id_name("selectfilebox")
NameError: name 'find_element_by_id_name' is not defined