# ldd hello
        linux-vdso.so.1 =>  (0x00007fffd677e000)
        libpython3.4m.so.1.0 => /usr/lib/x86_64-linux-gnu/libpython3.4m.so.1.0 (0x00007f968c6c2000)
        libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f968c4a4000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f968c0dd000)
        libexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1 (0x00007f968beb3000)
        libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f968bc9a000)
        libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f968ba95000)
        libutil.so.1 => /lib/x86_64-linux-gnu/libutil.so.1 (0x00007f968b892000)
        libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f968b58c000)
        /lib64/ld-linux-x86-64.so.2 (0x00007f968ccfb000)

and (even strace) does not show an attempt to acces the so-file. Also tried to add

-L/usr/lib/python3/dist-packages/psycopg2 -l_psycopg.cpython-34m-x86_64-linux-gnu.so

and similar without success.

Can anyone try to reproduce it, a freeze (with patches) of hello.py containing only

import _psycopg2

or maybe another external library? In the first case apt-get install python3-psycopg2 is necessary.