dopostback

I am having trouble with the regex in the following code: import mechanize import re br = mechanize.Browser() br.set_handle_robots(False) br.addheaders = [('User-agent', 'Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.1) Gecko/2008071615 Fedora/3.0.1-1.fc9 Firefox/3.0.1')] response = br.open("http://www.gfsc.gg/The-Commission/Pages/Regulated-Entities.aspx?auto_click=1") html = response.read() br.select_form(nr=0) #print br.form br.set_all_readonly(False) next = re.search(r"""<a href="javascript:__doPostBack('(.*?)','(.*?)')">""",html) if next: print 'group(1):', next.group(1) print 'group(2)

I noticed recently in my ASP.NET web application that if I set my User Agent to an empty string (using a FireFox plug-in to spoof the user agent), then ASP.NET will not generate the javascript required to perform postbacks. More specifically, if you try calling the __doPostBack(a, b) function from your javascript, you will get an error saying that function is undefined. I understand that every browser has a user agent, so this won't come up that often, but the essence of the problem still exists: there are cases in which an unrecognized or malformed user agent can render your web application

I am facing a rare kind of issue while Automating through Selenium/Python while trying to fill out two fields on a website. My script fills out the first field i.e. ORIGIN CITY pretty fine. I have induced WebDriverWait for the second field DELIVERY ADDRESS . My guess the DELIVERY ADDRESS field is pretty much clickable even before the waiter is induced. But the ORIGIN CITY field have a JavaScript associated through onchange event as follows : onchange="javascript:setTimeout('__doPostBack(\'DrpCity\',\'\')', 0)" ORIGIN CITY HTML : <li> <div class="form-group"> <select name="DrpCity" onchange=