newbie while loop error: IndexError: list assignment index out of range

newbie while loop error: IndexError: list assignment index out of range - Printable Version

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newbie while loop error: IndexError: list assignment index out of range - msa969 - Mar-31-2017

I want to create a list called numbers that contains all the integers from 1 to 30

numbers = []
i = 1
while(i < 30):
    numbers[i] = i +1 

print(numbers)

Error:    numbers[i] = i +1

IndexError: list assignment index out of range

RE: newbie while loop error: IndexError: list assignment index out of range - wavic - Mar-31-2017

numbers = list(range(1, 31))

RE: newbie while loop error: IndexError: list assignment index out of range - zivoni - Mar-31-2017

You cant assign value to a list "position" if it doesnt exist yet. You can modify your code to use append (and to increase i variable):

numbers = []
i = 1
while (i <= 30):    
  numbers.append(i)
  i += 1
print(numbers)

gives

Output:
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30]

but much better is to use built-in range():

>>> list(range(1,31))
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30]

RE: newbie while loop error: IndexError: list assignment index out of range - msa969 - Mar-31-2017

thanks