On 01/12/2012 12:41 PM, Raphaël De GIUSTI wrote:
I have a python application, it can run on Python>= 2.6 and it's
architecture independant.
I need the rpm package of this application to be installed on Fedora 14
(python 2.7) and Centos 6.2 (python 2.6).
I currently use mock to build one rpm package for each "flavour" and it
works well.
Do I really have to use mock and build 2 rpms or is there another way to
create a single generic python 2.x rpm package ?
Because apparently I can't install the Centos compiled rpm on Fedora.
It gives me this error message :
**************************************************************
error: Failed dependencies:
python(abi) = 2.6 is needed by myapp-0.9.el6.noarch
**************************************************************
Here is the relevant part of my .spec file :
*******************************************************************************************************************************************************************
%{!?python_sitelib: %global python_sitelib %(%{__python} -c "from
distutils.sysconfig import get_python_lib; print(get_python_lib())")}
%{!?python_sitearch: %global python_sitearch %(%{__python} -c "from
distutils.sysconfig import get_python_lib; print(get_python_lib(1))")}
If the software installs anything into python library paths, then it the
resulting *package* is dependent on the python version used when
building: eg python 2.6 will not look into python 2.7 library paths, so
it will not work.
In addition there's the issue (which rpm dependencies dont currently
enforce) with any of byte-compiled files (.pyc and .pyo) included in the
package: they should be compiled with the version of python used to run
them. IIRC python silently falls back to non-bytecompiled versions on
version mismatch if it cannot replace the byte-compiled files, so it
works but non-optimally. And if run as root, python will silently
rewrite the byte-compiled versions which in turn causes rpm verify to
light up like a x-mas tree.
So yes, you should really build separate packages for distros where the
python version differs.
- Panu -
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