Replace SRC of all IMG elements using Parser

Question

I am looking for a way to replace the SRC attribute in all IMG tags not using Regular expressions. (Would like to use any out-of-the box HTML parser included with default Py

Answer 1

Here is a pyparsing approach to your problem. You'll need to do your own code to transform the http src attribute.

from pyparsing import *
import urllib2

imgtag = makeHTMLTags("img")[0]

page = urllib2.urlopen("http://www.yahoo.com")
html = page.read()
page.close()

# print html

def modifySrcRef(tokens):
    ret = ""

imgtag.setParseAction(modifySrcRef)

print imgtag.transformString(html)

The tags convert to: