Fetching medicine names from medindia

medicinenames.py

import requests
import BeautifulSoup
import string
session = requests.session()
alphas = list(string.ascii_uppercase)
for i in alphas:
	url_parse = "http://www.medindia.net/drugs/manufacturers.asp?alpha=" + i
	req = session.get(url_parse)
	doc = BeautifulSoup.BeautifulSoup(req.content)
	manufacturers_div = doc.find("div", attrs={"class": "headlines clear-fix"})
	for manu in manufacturers_div:
		tag = manu.next
		links = tag.parent
		pnames = links.findAll("a")
		for name in pnames:
			try:
				phar_link = name["href"]
				pro_req = session.get(phar_link)
				pro_doc = BeautifulSoup.BeautifulSoup(pro_req.content)
				manu_products = pro_doc.find("div", attrs={"class": "top-gray col-list clear-fix "})
				product_names = manu_products.findAll("h3")
				trade_names =  manu_products.findAll("div", attrs={"class": "links"})
				for i in xrange(0,len(product_names)):
					tnames = trade_names[i].contents
					list2 = [a for a in tnames if a != '\n']			
					list3 = [b for b in list2 if b is not None and b != '|']			
					for item in list3:
						if item.string.strip() != "|":
							try:print name.string.strip() + "," + product_names[i].string.strip() + ","+item.string.strip()+","+phar_link.strip()
							except:pass
			except:pass
		
		break