Victor Stinner wrote: >> Attached program works with > > GSL is needed. Debian package: libgsl0-dev > > dump.py works correctly on computer: > - Debian Sid > - python 3.0 trunk > - i386 > > Problem specific to x86_64? > > Where is the issue? :-) How did you run dump.py? It crashes only with "python3.0 dump.py 1" Christian