[Tutor] blank space after a number

[Alan Gauld]

"Enih Gilead" <egilead at gmail.com> wrote

> a, b = 0, 1
> while b < 10:
>       print '%i%i' % (a,b) + ',',
>       b = b+1

If you are using string formatting it's best to get the format
string to do as much of the work as possible. In this case
forget about 'a' and just insert the zero into the string, and
similarly don't add a comma and space, just put it in the string
And for a fixed number of iterations a for loop is usually
preferable:

for b in range(1,10):
    print "%02d, " % b


Does the same job.
> '''
> 01, 02, 03, 04, 05, 06, 07, 08, 09, '''


> while b < 100:
>       print '%i' % (b) + ',',
>       b = b+1


And exactly the same code with the limit increased

for b in range(1,101):   #NB 101 to get the 100 - your while loop goes 
to 99...
    print "%02d, " % b

> '''
> 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 
> 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 
> 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 
> 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 
> 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 
> 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100 '''

The %02d says print the number as two characters, padding with zeros
as needed.

HTH,


-- 
Alan Gauld
Author of the Learn to Program web site
http://www.alan-g.me.uk/