from lxml import html
import requests
import csv
page = requests.get('http://www.google.com/finance?q=[%28exchange+%3D%3D+%22ABC%22%29]&restype=company&noIL=1&start=0&num=1500')
tree = html.fromstring(page.content)
#Scrape stocks companies and symbols
stocks = tree.xpath('//a [not(@class)][@id][@href]/text()')
#This will create a list of prices
stocks.remove('IRM Group Berhad');
stocks.remove('A & M Realty Berhad');
stocks.remove('BERJAYA FOOD BERHAD- A SHARES');
print 'Stocks= ', stocks
# open a file for writing.
csv_out = open('KLSE.csv', 'wb')
mywriter = csv.writer(csv_out)
rows = zip(stocks)
mywriter.writerows(rows)
csv_out.close()
我想删除所有包含单词“Berhad”的行,因为我不想逐个删除它。任何线索如何做到这一点?Python:想删除包含特定单词的行
你是什么意思“不想删除它一一”吗?为了完成任务,需要O(n)操作,所以如果不查看所有行,不可能做到这一点 –