Hello colleagues,
I wan't to upgrade to python 2.5.4 from 2.5.2 but I don't want to lose my modules. Is it possible to upgrade without removing those modules?

Thanks

Installing python 2.5.4 over version 2.5.2 should not bother any third party modules like wxPython. Version 2.5.4 is simply a bug upgrade within the 2.5 series. Don't uninstal version 2.5.2, the new version will simply overwrite it.