changing numbers to spellings

[Paul McGuire]

"Steve Holden" <steve at holdenweb.com> wrote in message 
news:mailman.1026.1159679410.10491.python-list at python.org...
> flyingisfun1217 at gmail.com wrote:
>> Hey,
>>
>> Sorry to bother everybody again, but this group seems to have quite a
>> few knowledgeable people perusing it.
>>
>> Here's my most recent problem: For a small project I am doing, I need
>> to change numbers into letters, for example, a person typing in the
>> number '3', and getting the output 'Three'. So far, I have an interface
>> that only collects numbers (or letters), and displays them in a text
>> variable label (as you can see below). Heres the code I have:
>>
>> +--------------------------------+-----------------------------------+
>>
>> var=StringVar()
>>
>> def collect():
>>      var.set(entrybox.get())
>>
>> spelledentry=Label(root, textvariable=var)
>> spelledentry.grid(row=5, column=1)
>>
>> filler1=Label(root, text="                    ")
>> filler1.grid(row=0, column=0)
>>
>> titletext=Label(root, text="NumberSpeller2")
>> titletext.grid(row=0, column=1)
>>
>> filler2=Label(root, text="                    ")
>> filler2.grid(row=0, column=2)
>>
>> filler3=Label(root, text="\n")
>> filler3.grid(row=1, column=0)
>>
>> entrybox=Entry(root)
>> entrybox.grid(row=1, column=1, sticky=N)
>>
>> enterbutton=Button(root, text="Spell!", command=collect)
>> enterbutton.grid(row=3, column=1, sticky=N)
>>
>> filler4=Label(root, text="")
>> filler4.grid(row=4, column=1)
>>
>> filler5=Label(root, text="")
>> filler5.grid(row=6, column=1)
>>
>> website=Label(root, text="Visit the NS2 Website")
>> website.grid(row=7, column=1, sticky=S)
>>
>> +-------------------------------------+----------------------------------------+
>>
>> Like I explained a little before, I need to keep users from entering
>> any letters, and I need to have the numbers they typed in translated to
>> text.
>>
>> Can someone explain how I could go across doing this?
>>
> You should get some clue about the number conversion (not to menion a 
> bunch of code you can lift :) from
>
>     http://www.python.org/pycon/dc2004/papers/42/ex1-C/num2eng.py
>
> regards
>  Steve
> -- 
> Steve Holden       +44 150 684 7255  +1 800 494 3119
> Holden Web LLC/Ltd          http://www.holdenweb.com
> Skype: holdenweb       http://holdenweb.blogspot.com
> Recent Ramblings     http://del.icio.us/steve.holden
>

... and pyparsing has an example that goes from words back to numbers!
http://pyparsing.wikispaces.com/space/showimage/wordsToNum.py

-- Paul