[lttng-dev] babeltrace-python bindings

[Julien Desfossez]

Tested on a fresh Ubuntu 14.04 install and it works !

Thanks :-) !!

On 14-11-05 04:02 PM, Jérémie Galarneau wrote:
> This commit in the master branch should perform the detection and
> install the module under dist-packages when using Debian. Could anyone
> confirm it works on Ubuntu? I can backport it to stable-1.2 if it
> helps.
> 
> commit 1b39e2de5485147dd3dc7089c4edfd685d5cad96
> Author: Jérémie Galarneau <jeremie.galarneau at efficios.com>
> Date:   Thu Oct 16 16:36:10 2014 -0400
> 
>     Detect Python packages directory on configure
> 
>     The Python interpreter on Debian is configured to use
>     ...lib/python.../dist-packages instead of
>     .../lib/python.../site-packages to look for extra modules.
> 
>     python_modules.m4 performs a runtime python check of the
>     sys.path variable to check wether the selected interpreter is
>     configured to use site-packages vs dist-packages.
> 
>     Signed-off-by: Jérémie Galarneau <jeremie.galarneau at efficios.com>
> 
> Regards,
> Jérémie
> 
> On Wed, Nov 5, 2014 at 11:29 AM, Julien Desfossez
> <jdesfossez at efficios.com> wrote:
>> Hi,
>>
>> The problem resides with the default search path of Python on Debian/Ubuntu.
>> When installing manually a Python library, it is installed in
>> /usr/local/lib/python3.x/site-packages, but Python on Debian/Ubuntu does
>> not look into this path but does look into dist-packages...
>>
>> So you can either symlink /usr/local/lib/python3.x/dist-packages so
>> /usr/local/lib/python3.x/site-packages which is ugly.
>>
>> Or use this kind of hack at the beginning of your Python program :
>> try:
>>     from babeltrace import TraceCollection
>> except ImportError:
>>     # quick fix for debian-based distros
>>     sys.path.append("/usr/local/lib/python%d.%d/site-packages" %
>>                    (sys.version_info.major, sys.version_info.minor))
>>     from babeltrace import TraceCollection
>>
>> You can have a look at this bug report about why it will probably never
>> be fixed...
>> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=765022
>>
>> I hope the workaround at least solves the problem you are having,
>>
>> Julien
>>
>> On 14-11-04 05:37 PM, Bin YE wrote:
>>> Hi there
>>>
>>> i have installed Lttng and babeltrace
>>> my system:Ubuntu 14.04LTS
>>> I have made following steps
>>>
>>> sudo apt-add-repository ppa:lttng/ppa
>>> sudo apt-get update
>>> sudo apt-get install lttng-tools
>>> sudo apt-get install lttng-modules-dkms
>>> sudo apt-get install liblttng-ust-dev
>>>
>>> export PYTHON="python3"
>>> export PYTHON_CONFIG="/usr/bin/python3-config"
>>>
>>> ./configure --enable-python-bindings
>>>  make
>>>  make install
>>>  ldconfig
>>>
>>> but i still can not use babeltrace python bindings
>>> when i run import babeltrace it output error with no module
>>>
>>> I really need you help about it
>>> Thank you very much in advance
>>>
>>> Bin Ye
>>>
>>>
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>>> lttng-dev at lists.lttng.org
>>> http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
>>>
>>
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> 
> 
>