On Mon, Dec 14, 2009 at 8:25 PM, Alexey Akimov <alexey.akimo...@gmail.com> wrote: > Hello to everyone, > > I get confused trying to port my boost python extension module. So I've made > a shared object file test.so which actually perfectly works in the original > development directory. However, when I copy this file to another Linux > machine (I also copy some extra libraries such as > libboost_python-gcc344-1_39.so.1.39.0 and make sure that both .so files are > in PATH and LD_LIBRARY_PATH) I recieve "Import Error: undefined symbol: > /home/username/bin/libboost_python-gcc34-1_39.so.1.39.0: > PyUnicodeUCS4_FromEncodedObject". I aslo istalled the same version (compared > to one which was used for creation of the module) of Python to the Linux > machine where I try to use my extension. > Can anyone explain me where could the problem be.
In my opinion you compiled the module against Python version/build which is differ from the "run" environment. > Also I would clarify what > is the general way to export just created modules? As I understand the order > is following: 1) create .so object (look for it in > /bin/compiler-name/release-or-debug/module-name.so directory) 2) copy this > file as well as other necessary library to some /bin or /lib directory (for > convenience) - and make sure they are in PATH and LD_LIBRARY_PATH variables. You can use "ldd" command to find out dependencies. In the case, you have few interpreters it also can help you to see what python*.so will be actually used. > 3) import the module in python interpreter. > > Do I need to do something else (define some other variables or make some > other changes) in order to make my module work? In case you have few modules, sometimes you need to tweak "dlopen" flags. -- Roman Yakovenko C++ Python language binding http://www.language-binding.net/ _______________________________________________ Cplusplus-sig mailing list Cplusplus-sig@python.org http://mail.python.org/mailman/listinfo/cplusplus-sig
