Embedded python loading .so files?

[jefishman at gmail.com]

> You really need to do some debugging here. There must be more error
> message than that, or there are some issues with libdl on the target
> system. A common problem is that it gives an error message that
> some symbols could not be found when loading the shared library,
> and that these symbols originate from Python run-time. In this
> case, the reason is that the executable does not export the Python
> symbols; you need to pass -export-dynamic to the linker of the
> container application.
>
> This is all guessing, of course: you didn't even say whether
> the target system is Unixish-ELF-based.
>
> Regards,
> Martin

Sorry, I never really know how much information in enough, and when
it's just complicating the issue. That obviously wasn't, and didn't
even get to the root of the problem:

The target system is mipsel-linux, specifically Sony's OPEN-R platform
running on a Sony ERS-7 Aibo robotic dog.  I have recompiled passing
-export-dynamic, but I realized this is not the issue.  Here is the
output of the import attempt from within the module imported by
PyImport_ImportModule(const char *name):

import numpy # directory /MS/PyLib/numpy
# trying /MS/PyLib/numpy/__init__.py
# /MS/PyLib/numpy/__init__.pyc matches /MS/PyLib/numpy/__init__.py
import numpy # precompiled from /MS/PyLib/numpy/__init__.pyc
# trying /MS/PyLib/numpy/__config.py
# /MS/PyLib/numpy/__config.pyc matches /MS/PyLib/numpy/__config.py
import numpy.__config__ # precompiled from /MS/PyLib/numpy/__config.pyc
# trying /MS/PyLib/numpy/version.py
# /MS/PyLib/numpy/version.pyc matches /MS/PyLib/numpy/version.py
import numpy.version # precompiled from /MS/PyLib/numpy/version.pyc
# trying /MS/PyLib/numpy/_import_.py
# /MS/PyLib/numpy/_import_.pyc matches /MS/PyLib/numpy/_import_.py
import numpy._import_tools # precompiled from
/MS/PyLib/numpy/_import_.pyc
# trying /MS/PyLib/numpy/os.py
# trying /MS/PyLib/numpy/os.pyc
# trying /MS/PyLib/numpy/sys.py
# trying /MS/PyLib/numpy/sys.pyc
# trying /MS/PyLib/numpy/imp.py
# trying /MS/PyLib/numpy/imp.pyc
import imp # builtin
# trying /MS/PyLib/numpy/glob.py
# trying /MS/PyLib/numpy/glob.pyc
# trying /MS/PyLib/glob.py
# /MS/PyLib/glob.pyc matches /MS/PyLib/glob.py
import glob # precompiled from /MS/PyLib/glob.pyc
# trying /MS/PyLib/fnmatch.py
# /MS/PyLib/fnmatch.pyc matches /MS/PyLib/fnmatch.py
import fnmatch # precompiled from /MS/PyLib/fnmatch.pyc
# trying /MS/PyLib/re.py
# /MS/PyLib/re.pyc matches /MS/PyLib/re.py
import re # precompiled from /MS/PyLib/re.pyc
# trying /MS/PyLib/sre.py
# /MS/PyLib/sre.pyc matches /MS/PyLib/sre.py
import sre # precompiled from /MS/PyLib/sre.pyc
# trying /MS/PyLib/sre_comp.py
# /MS/PyLib/sre_comp.pyc matches /MS/PyLib/sre_comp.py
import sre_compile # precompiled from /MS/PyLib/sre_comp.pyc
import _sre # builtin
# trying /MS/PyLib/sre_cons.py
# /MS/PyLib/sre_cons.pyc matches /MS/PyLib/sre_cons.py
import sre_constants # precompiled from /MS/PyLib/sre_cons.pyc
# trying /MS/PyLib/sre_pars.py
# /MS/PyLib/sre_pars.pyc matches /MS/PyLib/sre_pars.py
import sre_parse # precompiled from /MS/PyLib/sre_pars.pyc
# trying /MS/PyLib/string.py
# /MS/PyLib/string.pyc matches /MS/PyLib/string.py
import string # precompiled from /MS/PyLib/string.pyc
import numpy.core # directory /MS/PyLib/numpy/core
# trying /MS/PyLib/numpy/core/__init__.py
# /MS/PyLib/numpy/core/__init__.pyc matches
/MS/PyLib/numpy/core/__init__.py
import numpy.core # precompiled from /MS/PyLib/numpy/core/__init__.pyc
# trying /MS/PyLib/numpy/core/info.py
# /MS/PyLib/numpy/core/info.pyc matches /MS/PyLib/numpy/core/info.py
import numpy.core.info # precompiled from /MS/PyLib/numpy/core/info.pyc
# trying /MS/PyLib/numpy/core/numpy.py
# trying /MS/PyLib/numpy/core/numpy.pyc
# trying /MS/PyLib/numpy/core/multiarr.py
# trying /MS/PyLib/numpy/core/multiarr.pyc
# trying /MS/PyLib/multiarr.py
# trying /MS/PyLib/multiarr.pyc
# trying /MS/PyCode/multiarr.py
# trying /MS/PyCode/multiarr.pyc
Error Importing Behaviours
Traceback (most recent call last):
  File "/MS/PyCode/Behaviou.py", line 22, in ?
    import Brain
  File "/MS/PyCode/Brain.py", line 21, in ?
    import Switch
  File "/MS/PyCode/Switch.py", line 1, in ?
    import pNone as selectedPlayer
  File "/MS/PyCode/pNone.py", line 2, in ?
    import numpy.oldnumeric
  File "/MS/PyLib/numpy/__init__.py", line 34, in ?
    import core
  File "/MS/PyLib/numpy/core/__init__.py", line 5, in ?
    import multiarray
ImportError: No module named multiarray


I saw that the import did not look for .so files.  I verified this by
checking imp.get_suffixes():

import imp # builtin
[('.py', 'U', 1), ('.pyc', 'rb', 2)]      #<-- result of `print
imp.get_suffixes()`


I realize that this should include a ('.so','rb',3) entry (should it
not? 3->imp.C_EXTENSION) if it were going to locate the c extension.
Thus, my revised question would be what sets the suffixes for import?
How do/Can I change this?

The interpreter is linked in from a library compiled from edited Python
2.3 source so that it will run on the OPEN-R system (strips things like
time, socket, etc., which are not supported).


Thanks again,
Jeremy