[Tutor] correcting an Active State Recipe for conversion to ordinal

[Serdar Tumgoren]

> No time to search for the issue, but here are some trials (hole from 10 --> 19):
> for i in range(21):
>        print "%s\t: %s" %(i,ordinal(i))
> for i in (-1,22,33,99,100,101,199,200,999,1000):
>        print "%s\t: %s" %(i,ordinal(i))
> ==>
> 0       : 0th
> 1       : 1st
> 2       : 2nd
> 3       : 3rd
> 4       : 4th
> 5       : 5th
> 6       : 6th
> 7       : 7th
> 8       : 8th
> 9       : 9th
> 10      : None
> 11      : None
> 12      : None
> 13      : None
> 14      : None
> 15      : None
> 16      : None
> 17      : None
> 18      : None
> 19      : None
> 20      : 20th
> -1      : -1th
> 22      : 22nd
> 33      : 33rd
> 99      : 99th
> 100     : 100th
> 101     : 101st
> 102     : 102nd
> 103     : 103rd
> 199     : 199th
> 200     : 200th
> 999     : 999th
> 1000    : 1000th
>


Okay, this is *really* strange. I performed the exact same tests as
above in IPython and I'm getting correct results (though I'm
embarrassed to admit I didn't consider negative numbers and doubly
embarrassed to admit that I'm not certain whether those should be a
mirror image of the positves...).

Below are the results I'm getting. Is it at all possible that this
could be a bug specific to my Python version, operating system or
something similar? I'll admit, this one's a bit over my head...


In [4]: for i in range(21):
   ...:     print ordinal(i)
   ...:
   ...:
0th
1st
2nd
3rd
4th
5th
6th
7th
8th
9th
10th
11th
12th
13th
14th
15th
16th
17th
18th
19th
20th

In [5]: for i in (-1,22,33,99,100,101,199,200,999,1000):
   ...:     ordinal(i)
   ...:
   ...:
Out[5]: u'-1th'
Out[5]: u'22nd'
Out[5]: u'33rd'
Out[5]: u'99th'
Out[5]: u'100th'
Out[5]: u'101st'
Out[5]: u'199th'
Out[5]: u'200th'
Out[5]: u'999th'
Out[5]: u'1000th'


In [7]: for i in range(21):
   ...:            print "%s\t: %s" %(i,ordinal(i))
   ...:
0	: 0th
1	: 1st
2	: 2nd
3	: 3rd
4	: 4th
5	: 5th
6	: 6th
7	: 7th
8	: 8th
9	: 9th
10	: 10th
11	: 11th
12	: 12th
13	: 13th
14	: 14th
15	: 15th
16	: 16th
17	: 17th
18	: 18th
19	: 19th
20	: 20th