[pypy-dev] question on using ctypes

[Jiwon Seo]

Hi,

I added a module that uses ctypes under pypy/module/ but I'm getting
ImportError while running translate.py for targetpypystandalone.py

The error message is like,

..... cut ...
[translation:ERROR]     w_value = loader(space)
[translation:ERROR]    File
"/u/jiwon/proj/pypy-dist/pypy/interpreter/mixedmodule.py", line 135,
in ifileloader
[translation:ERROR]     d[name] = __import__(name, None, None, [name])
[translation:ERROR]  ImportError': No module named tcc
[translation:ERROR]     .. v0 = getattr(self_0, ('w_dict'))
[translation:ERROR] Processing block:
[translation:ERROR]  block at -1 is a <class
'pypy.objspace.flow.flowcontext.SpamBlock'>
[translation:ERROR]  in
(pypy.interpreter.mixedmodule:33)MixedModule.MixedModule.getdictvalue
[translation:ERROR]  containing the following operations:
[translation:ERROR]        v1 = getattr(space_0, ('finditem'))
[translation:ERROR]        v0 = getattr(self_0, ('w_dict'))
[translation:ERROR]        v2 = simple_call(v1, v0, w_name_0)
[translation:ERROR]        v3 = getattr(self_0, ('lazy'))
[translation:ERROR]        v4 = is_true(v3)
[translation:ERROR]  --end--

and the part I added is pypy/module/tcc/__init__.py and pypy/module/tcc/tcc.py

### __init__.py

# Package initialisation
from pypy.interpreter.mixedmodule import MixedModule

class Module(MixedModule):
    appleveldefs = {}
    interpleveldefs = {
        'print0':   'tcc.tcc_print0'
    }

### tcc.py
from pypy.interpreter.baseobjspace import ObjSpace
from ctypes import *

libtcc = CDLL('/path/to/lib.so')
print0 = libtcc.TCC_Print
print0.argtypes = [c_char_p]
print0.restype = c_int

def tcc_print0(space, msg):
    print0(msg)
tcc_print0.unwrap_spec = [ObjSpace, str]

What have I done wrong?

Thaniks,

-Jiwon