[wxPython-users] How does wxPython find wxWidgets?

[Chris Carlen]

Robin Dunn wrote:
> Chris Carlen wrote:
>> and ran ldconfig, but to no avail.  I can't get wxPython under the 
>> Python2.5 installation to automatically find the wxWidgets libs.
>>
>> How to make this work?
> 
> Linux (and other work-alikes) have a standard path that is searched for 
> dynamic libraries, and setting the LD_LIBRARY_PATH extends that path 
> with the dir(s) you specify.   So you have a few options to make this 
> automatic:
> 
> * Set LD_LIBRARY_PATH in one of your login/init scripts so it is always 
> in your environment.
> 
> * Add that path to /etc/ld.so.conf and then run ldconfig.  This will add 
> it to the default shared library path.
> 
> * Rebuild wxWidgets with a --prefix of one of the standard paths, like 
> /usr or /usr/local.

Thanks for the reply, Robin!

I rebuilt one with --prefix=/usr which puts the libs directly in 
/usr/lib and of course works.

I rebuilt another with --prefix=/usr/lib/wxPython-2.8.6.0-gtk2-unicode 
which is analagous to the path where wxWidgets locates when I built from 
the RPM sources for ver. 2.8.4.0.

This of course doesn't work unless I do:

ldconfig -v /usr/lib/wxPython-2.8.6.0-gtk2-unicode/lib

Interestingly, I only had to run this command once, and didn't bother to 
put this lib path into my /etc/ld.so.conf or the command in some config 
file.  I suppose the ldconfig caching mechanism is working some magic 
here.  So I am prepared for the possibility that it might randomly stop 
working some day, in which case I will know what to do.


P.S.  Really fun toolkit and your book is great.  I'm mainly an embedded 
microcontroller/DSP programmer in C and analog/digital circuit designer. 
  I never knew how to program in an OOP language like Python or to 
create GUIs before.  It is much more approachable and fun than I had 
anticipated.  That is mostly due to how easy Python is to learn, and the 
great "wxPython in Action" text.  I don't think I would have enjoyed 
this much had I attempted to learn it in C++ or Java.

Good day!




-- 
_____________________
Christopher R. Carlen
crobc at bogus-remove-me.sbcglobal.net
SuSE 9.1 Linux 2.6.5