basic python question about for loop
Steve Holden
steve at holdenweb.com
Wed Apr 9 17:04:03 EDT 2008
jmDesktop wrote:
>>From the Python.org tutorial:
>
>>>> for n in range(2, 10):
> ... for x in range(2, n):
> ... if n % x == 0:
> ... print n, 'equals', x, '*', n/x
> ... break
> ... else:
> ... # loop fell through without finding a factor
> ... print n, 'is a prime number'
> ...
> 2 is a prime number
> 3 is a prime number
> 4 equals 2 * 2
> 5 is a prime number
> 6 equals 2 * 3
> 7 is a prime number
> 8 equals 2 * 4
> 9 equals 3 * 3
>
>
>
> first time 2 mod 2, 2/2, no remainder == 0, what am I doing wrong?
> Why did it fall through?
>
>>> range(2, 2)
[]
>>>
The loop body executes zero times.
regards
Steve
--
Steve Holden +1 571 484 6266 +1 800 494 3119
Holden Web LLC http://www.holdenweb.com/
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