WindowsXP/ CTypes - How to convert ctypes array to a string?

[dudeja.rajat at gmail.com]

On Tue, Aug 19, 2008 at 12:20 PM, Fredrik Lundh <fredrik at pythonware.com> wrote:
> dudeja.rajat at gmail.com wrote:
>
>> I've used CTYPES module to access a function from a dll. This function
>> provides me the version of the dll. This information is accessible to
>> me as an array of 4 long inetegers. information as :
>> 2, 1, 5, 0
>>
>> I want to display these elements concatenated as "v2.1.5.0". This
>> string ( I'm thinking of writing the above 4 array elements to a
>> string) is to be displayed as label in a GUI ( the GUI used is Tk)
>>
>> Please suggest how can I write these elements to a string to get me
>> the desired results as "v2.1.5.0". And, is writing to a string is
>> right way?
>
> any special reason why you're not reading replies to your previous post?
>
> here's what I wrote last time.
>
> expecting that Python/ctypes should be able to figure out that you
> want an array of 4 integers printed as a dot-separated string is a
> bit optimistic, perhaps.  but nothing that a little explicit string
> formatting cannot fix:
>
>>>> from ctypes import *
>>>> versionArr = c_long * 4
>>>> version = versionArr(1, 2, 3, 4)
>>>> "%d.%d.%d.%d" % tuple(version)
> '1.2.3.4'
>
> inserting a "v" in the format string gives you the required result:
>
>>>> "v%d.%d.%d.%d" % tuple(version)
> 'v1.2.3.4'
>
> </F>
>
> --
> http://mail.python.org/mailman/listinfo/python-list
>
Fredrik,
My apology for any confusion created.
I read all the replies. In fact I'm thankful to you all guys who are
responding so quickly to all questions.

I also add the letter 'v' same as you suggested. However, I'm looking
to store this into some variable ( that variable could be be a string,
tuple or anything, Im not sure which is the suited one) so that I can
access it in some other module that will then display this version
information in a Label Widet in GUI.

So, what is the best way to store 'v1.2.3.4' in a variable? And, what
type of variable is most suited (so as able to be used in other module
probably, as string there)?

Thanks,
Rajat