Shell Programming and Scripting

#!/usr/bin/python

import urllib.error, urllib.parse, urllib.request
import re

#get the file
f = urllib.request.urlopen("http://www.phl.org/cgi-bin/fidsarrival.pl")
s = str(f.read())
f.close()

#regular expression pattern matching everything inside < > tags and double-slashed n
pattern = r'(<.*?>|\\n)'

#replaces all instances of the pattern with a newline, then writes it into the file 'refined.txt'
ff = open('refined.txt', 'w')
ff.write(re.sub(pattern, '\n', s))
ff.close()

#prints the file line by line
of = open('refined.txt').readlines()
for line in of:
    print(line, end='')