Looping with Beautifulsoup

[CaptainCsaba]

from urllib.request import urlopen as uReq
from bs4 import BeautifulSoup as soup

filename = "products.csv"
f= open(filename, "w")
headers = "name, special_cond, sector, subsector, index, marketcond, isin\n"
f.write(headers)

while open('input.txt') as url_file:
	for my_url in url_file:
		uClient = uReq(my_url.stip())
		page_html = uClient.read()
		uClient.close()
		page_soup = soup(page_html, "html.parser")

	
		name = page_soup.find('h1', attrs={'class','tesummary'}).text.replace("\n", "") 
		spec = page_soup.find('div', attrs={'class':'commonTable table-responsive'}).find('tr', attrs={'class':'even'}).find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').text.replace("\r", "")
		sect = page_soup.find('div', attrs={'id':'pi-colonna2'}).find('div', attrs={'class':'table-responsive'}).find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').text
		subsect = page_soup.find('div', attrs={'id':'pi-colonna2'}).find('div', attrs={'class':'table-responsive'}).find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').text
		index = page_soup.find('div', attrs={'id':'pi-colonna2'}).find('div', attrs={'class':'table-responsive'}).find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').text
		mainmarket = page_soup.find('div', attrs={'id':'pi-colonna2'}).find('div', attrs={'class':'table-responsive'}).find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').text
		isin = page_soup.find('div', attrs={'id':'pi-colonna2'}).find('div', attrs={'class':'table-responsive'}).find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').find_next('td').text


		f.write(name.replace("\r", " ") + "," + spec.replace("\n", "") + "," + sect + "," + subsect + "," + index.replace(",", "|") + "," + mainmarket + "," + isin + "\n"
	
f.close()

	

This is the error:

>>> while open('input.txt') as url_file:
  File "<stdin>", line 1
    while open('input.txt') as url_file:
                             ^
SyntaxError: invalid syntax
>>> for my_url in url_file:
...
  File "<stdin>", line 2

    ^
IndentationError: expected an indented block

Also for some reason is gives me the same error in the end:

... f.close()
  File "<stdin>", line 3
    f.close()
    ^
SyntaxError: invalid syntax