Python Basic
Download pythonGo to www.python.org and download Python 2.7.8
Follow steps below
1. Search “phthon download” in google.2. Click https://www.python.org/downloads/.3. Download Python 2.7.8.4. Click “run”.5. Click “next” in below screen.
6. Click “next “.7. Click “next” , and click “finish”.
Ex1: Reading specific value from web
8. Open Python
9 . Go to
10 . Go to
11.Choose ‘File’ and ‘New File’
12. Edit code here
13. Edit below code.import urllibimport rehtmlfile = urllib.urlopen("http://finance.yahoo.-com/q?s=AAPL")htmltext = htmlfile.read()regex = '<span id="yfs_l84_aapl">(.+?)</span>'pattern = re.compile(regex)price = re.findall(pattern, htmltext)print price
After you hit enter you can see the output below.['116.47']
14. Go to and link “finance.yahoo.com” in chrome -> Block the value to be read and right click on the block-> Click “component search” -> Then, you can see the screen below. Copy the blocked code below!
15. After coding is overrun program as below: choose ‘run’
and click ‘Run Module’
Code & ouput
Code & output
Ex2: crawling web page(s) with key value
Type below for crawlinggoogle
Full code
# -*- coding:utf-8 -*-import urllib2url='http://www.google.co.kr'html=urllib2.urlopen(url).read()print(html)
output