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My first ever Python program, comments welcome

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Greetings Pythoners

A short while back I posted a message that described a task I had set 
myself. I wanted to implement the following bash shell script in Python

Here's the script

sort -nr $1 | head -${2:-10}

this script takes a filename and an optional number of lines to display
and sorts the lines in numerical order, printing them to standard out.
if no optional number of lines are input the script prints 10 lines

Here's the file.

50	Parrots
12	Storage Jars
6	Lemon Currys
2	Pythons
14	Spam Fritters
23	Flying Circuses
1	Meaning Of Life
123	Holy Grails
76	Secret Policemans Balls
8	Something Completely Differents
12	Lives of Brian
49	Spatulas


... and here's my very first attempt at a Python program
I'd be interested to know what you think, you can't hurt my feelings
just be brutal (but fair). There is very little error checking as you 
can see and I'm sure you can crash the program easily.
'Better' implementations most welcome

#! /usr/bin/env python3.2

import fileinput
from sys import argv
from operator import itemgetter

l=[]
t = tuple
filename=argv[1]
lineCount=10

with fileinput.input(files=(filename)) as f:
	for line in f:
		t=(line.split('\t'))
		t[0]=int(t[0])
		l.append(t)
	l=sorted(l, key=itemgetter(0))

	try:	
		inCount = int(argv[2])
		lineCount = inCount
	except IndexError:
		#just catch the error and continue		
		None

	for c in range(lineCount):
		t=l[c]
		print(t[0], t[1], sep='\t', end='')

Thanks

Lipska


-- 
Lipska the Kat: Troll hunter, Sandbox destroyer
and Farscape dreamer of Aeryn Sun.

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My first ever Python program, comments welcome Lipska the Kat <lipska@lipskathekat.com> - 2012-07-21 20:08 +0100
  Re: My first ever Python program, comments welcome Ian Foote <ian@feete.org> - 2012-07-21 20:34 +0100
  Re: My first ever Python program, comments welcome MRAB <python@mrabarnett.plus.com> - 2012-07-21 20:40 +0100
    Re: My first ever Python program, comments welcome Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-07-22 00:32 +0000
      Re: My first ever Python program, comments welcome MRAB <python@mrabarnett.plus.com> - 2012-07-22 02:56 +0100
      Re: My first ever Python program, comments welcome Chris Angelico <rosuav@gmail.com> - 2012-07-22 11:59 +1000
      Re: My first ever Python program, comments welcome Dave Angel <d@davea.name> - 2012-07-21 22:01 -0400
  Re: My first ever Python program, comments welcome Dave Angel <d@davea.name> - 2012-07-21 16:10 -0400
    Re: My first ever Python program, comments welcome Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-07-22 00:56 +0000
    Re: My first ever Python program, comments welcome rusi <rustompmody@gmail.com> - 2012-07-21 19:55 -0700
      Re: My first ever Python program, comments welcome Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-07-22 09:14 +0100
      Re: My first ever Python program, comments welcome Lipska the Kat <lipska@lipskathekat.com> - 2012-07-22 10:20 +0100
        Re: My first ever Python program, comments welcome rusi <rustompmody@gmail.com> - 2012-07-22 09:18 -0700
          Re: My first ever Python program, comments welcome Lipska the Kat <lipska@lipskathekat.com> - 2012-07-22 18:23 +0100
            Re: My first ever Python program, comments welcome rusi <rustompmody@gmail.com> - 2012-07-23 22:13 -0700
              Re: My first ever Python program, comments welcome Lipska the Kat <lipskathekat@yahoo.co.uk> - 2012-07-24 12:34 +0100
    Re: My first ever Python program, comments welcome Lipska the Kat <lipska@lipskathekat.com> - 2012-07-22 09:37 +0100
      Re: My first ever Python program, comments welcome Andrew Berg <bahamutzero8825@gmail.com> - 2012-07-22 03:49 -0500
      Re: My first ever Python program, comments welcome Chris Angelico <rosuav@gmail.com> - 2012-07-22 20:17 +1000
        Re: My first ever Python program, comments welcome Lipska the Kat <lipska@lipskathekat.com> - 2012-07-22 13:36 +0100
      Re: My first ever Python program, comments welcome David <bouncingcats@gmail.com> - 2012-07-22 20:46 +1000
  Re: My first ever Python program, comments welcome Peter Otten <__peter__@web.de> - 2012-07-22 09:56 +0200
  Re: My first ever Python program, comments welcome "Ivan@work" <ivan.cvetkovic@pakel.hr> - 2012-07-23 09:12 +0200

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