грешка при импортиране при изпълнение на picam на raspberry pi

Опитвам се да стартирам picam на моя raspberry pi. За съжаление не заобикалям следната грешка при импортиране:

---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
<ipython-input-1-ae50f21e1c18> in <module>()
----> 1 import picam
      2 import time

/usr/local/lib/python2.7/dist-packages/picam/__init__.py in <module>()
      1 # Copyright (c) 2013 Sean Ashton
      2 # Licensed under the terms of the MIT License (see LICENSE.txt)
----> 3 from _picam import *
      4 import StringIO
      5 from PIL import Image

ImportError: /usr/local/lib/python2.7/dist-packages/picam/_picam.so: cannot open shared object file: No such file or directory

Търсих навсякъде (напр.: не мога отворен споделен обектен файл: Няма такъв файл или директория), но досега без успех. Прекомпилирането също не работи поради цял куп липсващи библиотеки (mmal.h, vcos.h и т.н.)

актуализация:

pi@raspberrypi ~ $ ls -l /usr/local/lib/python2.7/dist-packages/picam
total 48                                                                    
-rw-r--r-- 1 root staff  1819 Nov 18 14:47 __init__.py                      
-rw-r--r-- 1 root staff  2903 Nov 21 23:29 __init__.pyc                     
-rw-r--r-- 1 root staff 39567 Nov 18 14:47 _picam.so   

актуализация 2:

pi@raspberrypi ~ $ ldd /usr/local/lib/python2.7/dist-packages/picam/_picam.so
    not a dynamic executable

актуализация 3:

pi@raspberrypi ~ $ file /usr/local/lib/python2.7/dist-packages/picam/_picam.so 

/usr/local/lib/python2.7/dist-packages/picam/_picam.so: ELF 32-битов LSB споделен обект, ARM, версия 1 (SYSV), динамично свързан, BuildID[sha1]=0xe403bf379f8c1dc2cb82df774ac3f11998661ff1, не е премахнат

readelf -d /usr/local/lib/python2.7/dist-packages/picam/_picam.so 

Dynamic section at offset 0x700c contains 37 entries:
  Tag        Type                         Name/Value
 0x00000001 (NEEDED)                     Shared library: [libmmal_core.so]
 0x00000001 (NEEDED)                     Shared library: [libmmal_util.so]
 0x00000001 (NEEDED)                     Shared library: [libmmal_vc_client.so]
 0x00000001 (NEEDED)                     Shared library: [libvcos.so]
 0x00000001 (NEEDED)                     Shared library: [libbcm_host.so]
 0x00000001 (NEEDED)                     Shared library: [libpython2.7.so.1.0]
 0x00000001 (NEEDED)                     Shared library: [libpthread.so.0]
 0x00000001 (NEEDED)                     Shared library: [libdl.so.2]
 0x00000001 (NEEDED)                     Shared library: [librt.so.1]
 0x00000001 (NEEDED)                     Shared library: [libvchiq_arm.so]
 0x00000001 (NEEDED)                     Shared library: [libc.so.6]
 0x0000000e (SONAME)                     Library soname: [_picam.so]
 0x0000000f (RPATH)                      Library rpath: [/home/pi/SOURCE/userland/build/lib]
 0x0000000c (INIT)                       0x1d88
 0x0000000d (FINI)                       0x5840
 0x00000019 (INIT_ARRAY)                 0xf000
 0x0000001b (INIT_ARRAYSZ)               4 (bytes)
 0x0000001a (FINI_ARRAY)                 0xf004
 0x0000001c (FINI_ARRAYSZ)               4 (bytes)
 0x00000004 (HASH)                       0xf8
 0x6ffffef5 (GNU_HASH)                   0x444
 0x00000005 (STRTAB)                     0xcbc
 0x00000006 (SYMTAB)                     0x5bc
 0x0000000a (STRSZ)                      2330 (bytes)
 0x0000000b (SYMENT)                     16 (bytes)
 0x00000003 (PLTGOT)                     0xf154
 0x00000002 (PLTRELSZ)                   712 (bytes)
 0x00000014 (PLTREL)                     REL
 0x00000017 (JMPREL)                     0x1ac0
 0x00000011 (REL)                        0x16f8
 0x00000012 (RELSZ)                      968 (bytes)
 0x00000013 (RELENT)                     8 (bytes)
 0x6ffffffe (VERNEED)                    0x16b8
 0x6fffffff (VERNEEDNUM)                 2
 0x6ffffff0 (VERSYM)                     0x15d6
 0x6ffffffa (RELCOUNT)                   114
 0x00000000 (NULL)                       0x0

Всяка помощ ще бъде много оценена!