[pypy-dev] Problems in connecting C++ and python with cppyy

Xia Xin xiaxinx at gmail.com
Sun May 26 03:20:26 CEST 2013


This is the result. It shows that the pypy-c does not search the

>>>> import ctypes
>>>> ctypes.CDLL('libMyClassDict.so')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/opt/pypy/lib-python/2.7/ctypes/__init__.py", line 367, in __init__
    self._handle = _ffi.CDLL(name, mode)
OSError: libMyClassDict.so: libMyClassDict.so: cannot open shared
object file: No such file or directory
>>>> ctypes.CDLL('./libMyClassDict.so')
<CDLL './libMyClassDict.so', handle <_ffi.CDLL object at
0x000000000493aaa0> at 4895da8>

maybe I make a mistake in compiling the pypy-c? I did that like this.

$ hg clone https://bitbucket.org/pypy/pypy
$ cd pypy
$ hg up reflex-support
$ pypy ../../rpython/bin/rpython --Ojit targetpypystandalone --withmod-cppyy

Thank you!

Best regards,
Xia Xin

2013/5/26  <wlavrijsen at lbl.gov>:
> Hi,
>> Sorry, I did not find any mistakes except that AttributeError. So I
>> think maybe there are some problems in my OS.
> there may still be another problem lurking around that the AttributeError
> is hiding (and which I'd consider a bug :} ).
> Could you try the various cases using ctypes.CDLL(), either with CPython
> or PyPy?
>  >>> import ctypes
>  >>> ctypes.CDLL('libMyClassDict.so')
> If there's an issue with the error reporting, then this may show it.
> Best regards,
>            Wim
> --
> WLavrijsen at lbl.gov    --    +1 (510) 486 6411    --    www.lavrijsen.net

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