[IPython-dev] Qt/Curses interfaces future: results of the weekend mini-sprint (or having fun with 0mq)

[Brian Granger]

Darren,

Thanks for chasing this down.  I will commit this and test on various platforms.

Cheers,

Brian

On Tue, Mar 23, 2010 at 6:11 PM, Darren Dale <dsdale24 at gmail.com> wrote:
> On Tue, Mar 23, 2010 at 7:43 PM, Brian Granger <ellisonbg at gmail.com> wrote:
>> Darren,
>>
>>> This sounds really exciting. I am having some trouble installing pyzmq:
>>
>> OK, let's get this figured out.  Should be simple.
>>
>>> On Tue, Mar 23, 2010 at 5:01 PM, Fernando Perez <fperez.net at gmail.com> wrote:
>>>> git://github.com/sustrik/zeromq2.git
>>>>
>>>> then run
>>>>
>>>> ./autogen.sh
>>>> ./configure --prefix=your_favorite_installation_prefix
>>>> make
>>>> make install
>>>>
>>>> This should give you a fully working 0mq.
>>>
>>> I used --prefix=/usr/local
>>>
>>>> Then for the python
>>>> bindings, clone Brian's repo and get the kernel branch:
>>>>
>>>> git clone git://github.com/ellisonbg/pyzmq.git
>>>> cd pyzmq
>>>> git co -b kernel origin/kernel
>>>>
>>>> then
>>>>
>>>> cp setup.cfg.template setup.cfg
>>>>
>>>> and edit setup.cfg to indicate where you put your libraries.  This is
>>>> basically the prefix above with /lib and /include appended.
>>>
>>> [build_ext]
>>> # Edit these to point to your installed zeromq library and header dirs.
>>> library_dirs = /usr/local/lib
>>> include_dirs = /usr/local/include
>>>
>>> I checked that libzmq.so* exist in /usr/local/lib, same for zmq.* in
>>> /usr/local/include
>>>
>>>> Then you can do the usual
>>>>
>>>> python setup.py install --prefix=your_favorite_installation_prefix
>>>
>>> First I did "python setup.py build":
>>>
>>> running build
>>> running build_py
>>> creating build
>>> creating build/lib.linux-x86_64-2.6
>>> creating build/lib.linux-x86_64-2.6/zmq
>>> copying zmq/__init__.py -> build/lib.linux-x86_64-2.6/zmq
>>> running build_ext
>>> building 'zmq._zmq' extension
>>> creating build/temp.linux-x86_64-2.6
>>> creating build/temp.linux-x86_64-2.6/zmq
>>> gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall
>>> -Wstrict-prototypes -fPIC -I/usr/local/include
>>> -I/usr/include/python2.6 -c zmq/_zmq.c -o
>>> build/temp.linux-x86_64-2.6/zmq/_zmq.o
>>> gcc -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions
>>> build/temp.linux-x86_64-2.6/zmq/_zmq.o -L/usr/local/lib -lzmq -o
>>> build/lib.linux-x86_64-2.6/zmq/_zmq.so
>>>
>>> Next I used "python setup.py install --user" (which is equivalent to
>>> "--prefix=~/.local"):
>>>
>>> running install
>>> running build
>>> running build_py
>>> running build_ext
>>> running install_lib
>>> copying build/lib.linux-x86_64-2.6/zmq/_zmq.so ->
>>> /home/darren/.local/lib/python2.6/site-packages/zmq
>>> running install_egg_info
>>> Removing /home/darren/.local/lib/python2.6/site-packages/pyzmq-0.1.egg-info
>>> Writing /home/darren/.local/lib/python2.6/site-packages/pyzmq-0.1.egg-info
>>>
>>>> The prototype we wrote lives in examples/kernel.  To play with it,
>>>> open 3 terminals:
>>>>
>>>> - T1: run kernel.py, just leave it there.
>>>
>>> Here is where I run into trouble:
>>>
>>> Traceback (most recent call last):
>>>  File "kernel.py", line 21, in <module>
>>>    import zmq
>>>  File "/home/darren/.local/lib/python2.6/site-packages/zmq/__init__.py",
>>> line 26, in <module>
>>>    from zmq import _zmq
>>> ImportError: libzmq.so.0: cannot open shared object file: No such file
>>> or directory
>>
>> We link to libzmq.so dynamically so on Linux you have to set
>> LD_LIBRARY_PATH to point to /usr/local/lib.  Let me know if that
>> doesn't help.  I am also on #ipython right now.
>
> I had a look at h5py's setup.py, and discovered that Andrew was
> passing a runtime_library_dirs kwarg to Extension(). This diff seems
> to fix the problem in my particular case:
>
> diff --git a/setup.py b/setup.py
> index 86283c6..dc38454 100644
> --- a/setup.py
> +++ b/setup.py
> @@ -49,7 +49,8 @@ else:
>  zmq = Extension(
>     'zmq._zmq',
>     sources = [zmq_source],
> -    libraries = [libzmq]
> +    libraries = [libzmq],
> +    runtime_library_dirs = ['/usr/local/lib'],
>  )
>
> Darren
>



-- 
Brian E. Granger, Ph.D.
Assistant Professor of Physics
Cal Poly State University, San Luis Obispo
bgranger at calpoly.edu
ellisonbg at gmail.com