Thomas, If you were allowed to do what you're doing, the list first element would be getting skipped as "index" is always > 0. The thing is, you don't want the "index" var at all for adding to the list; just do jMatrix.append(k). You can iterate over the list with for x in jMatrix: print x
Is it basic that indexes from 1 vs. 0? 'just about completely forgotten basic. wes
Thomas Bunce wrote:
Tryed it and this is what I got (I did go to the web sight)
tom(h=500)$ /tmp/501/Cleanup\ At\ Startup/ptesting-128981347.87.py.command; exit Input the maximu number of tvalue: 114 Traceback (most recent call last): File "/Users/tom/Desktop/ptesting.py", line 20, in ? iMatrix[index] = k IndexError: list assignment index out of range logout [Process completed]
The complete listing:
#!/usr/bin/python import random import sys import array # ### generates a list of numbers between 1 and target ### and uses 23 % of these values. #
iMatrix = []
tvalue = input('Input the maximu number of tvalue: ') majorlop1 = int tvalue * .23) listvalues = range(tvalue)
sep = '- '
index = 0
while index < majorlop1:
index = index + 1
k = random.choice(listvalues) + 1
iMatrix[index] = k
while index < majorlop1:
print '- %s %s' % (iMatrix[index], sep)
#
###
#
I would like to set the size of the List/array independent of having to intialialize it prior to use. If it help I will say the bad works I am using OSX
Thanks Tom In article <[EMAIL PROTECTED]>, "Kartic" <[EMAIL PROTECTED]> wrote:
Tom,
Before you use iMatrix[index], you have to tell python to use iMatrix as an array. You will do that using iMatrix = [] *outside* the loop.
iMatrix = [] while index < majorlop1: # rest of the loop statements
Since you are new, please take a look at the Python tutorial to get you started. http://docs.python.org/tut/tut.html
Thanks, -Kartic
-- http://mail.python.org/mailman/listinfo/python-list
