[Tutor] creating a tab delimited filename

[C Smith]

Hi Jacob,

Watch out with your code,

###
if i==1000:
	i=0
else:
	i=i+1
###

Since this test is done after you have stored your data you are 
actually going to store 1001 pieces of data.
	i starts at 0
	you store 0
	you do your test and i is incremented
	{that's set 1}
	i is 1
	you store 1
	you do your test and i is incremented
	{that's set 2}
	...
	i is 1000
	you store 1000
	you do your test and i is set to 0
	{that's set 10001}

Also, it looks like you have that i-incrementing happening at the same 
level as the if-test. If so, it is possible that the i's that are used 
to store the data will not increase by 1 each time since they are being 
incremented for every k and not only when the data is being stored. If 
you only want it incremented when something is stored, put it inside 
the if-block.  Also, consider using the modulo operator to keep track 
of i: replace your test with

###
i = (i+1)%1000
###

i starts and 0 and will be incremented until it is 999 and then when 
this calculation is then performed you will calculate (999+1)%1000 
which is 1000%1000 which is 0--just what you wanted.  Here's an example 
that cycles through 3 number, 0, 1, and 2:

###
 >>> j=0
 >>> for i in range(10):
..   print j
..   j = (j+1)%3
..
0
1
2
0
1
2
0
1
2
0
###

/c